./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:38:35,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:38:35,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:38:35,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:38:35,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:38:35,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:38:35,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:38:35,540 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:38:35,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:38:35,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:38:35,547 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:38:35,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:38:35,548 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:38:35,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:38:35,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:38:35,551 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:38:35,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:38:35,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:38:35,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:38:35,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:38:35,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:38:35,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:38:35,554 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:38:35,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:38:35,555 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:38:35,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:38:35,556 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:38:35,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:38:35,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:38:35,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:38:35,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:35,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:38:35,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:38:35,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:38:35,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:38:35,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:38:35,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:38:35,561 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:38:35,562 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:38:35,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:38:35,562 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:38:35,562 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_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f [2023-11-19 07:38:35,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:38:35,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:38:35,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:38:35,913 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:38:35,914 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:38:35,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2023-11-19 07:38:39,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:38:39,257 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:38:39,258 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2023-11-19 07:38:39,270 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/data/2cf0b8579/9188b2dcc8664922bb904f64bbcac485/FLAG01c0bbbd1 [2023-11-19 07:38:39,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/data/2cf0b8579/9188b2dcc8664922bb904f64bbcac485 [2023-11-19 07:38:39,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:38:39,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:38:39,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:39,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:38:39,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:38:39,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1378a9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39, skipping insertion in model container [2023-11-19 07:38:39,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,351 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:38:39,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:39,559 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:38:39,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:39,609 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:38:39,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39 WrapperNode [2023-11-19 07:38:39,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:39,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:39,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:38:39,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:38:39,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,663 INFO L138 Inliner]: procedures = 22, calls = 28, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 263 [2023-11-19 07:38:39,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:39,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:38:39,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:38:39,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:38:39,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:38:39,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:38:39,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:38:39,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:38:39,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (1/1) ... [2023-11-19 07:38:39,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:39,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:39,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:38:39,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:38:39,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:38:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:38:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:38:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:38:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:38:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:38:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:38:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:38:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:38:39,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:38:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:38:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:38:39,821 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:38:40,021 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:38:40,027 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:38:40,612 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:38:40,629 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:38:40,629 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:38:40,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:40 BoogieIcfgContainer [2023-11-19 07:38:40,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:38:40,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:38:40,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:38:40,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:38:40,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:39" (1/3) ... [2023-11-19 07:38:40,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22401cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:40, skipping insertion in model container [2023-11-19 07:38:40,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:39" (2/3) ... [2023-11-19 07:38:40,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22401cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:40, skipping insertion in model container [2023-11-19 07:38:40,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:40" (3/3) ... [2023-11-19 07:38:40,648 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2023-11-19 07:38:40,658 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:38:40,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:38:40,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-19 07:38:40,670 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:38:40,861 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:38:40,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 361 transitions, 736 flow [2023-11-19 07:38:41,089 INFO L124 PetriNetUnfolderBase]: 16/359 cut-off events. [2023-11-19 07:38:41,089 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:38:41,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 359 events. 16/359 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 383 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 207. Up to 2 conditions per place. [2023-11-19 07:38:41,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 361 transitions, 736 flow [2023-11-19 07:38:41,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 328 places, 335 transitions, 682 flow [2023-11-19 07:38:41,126 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:38:41,146 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 335 transitions, 682 flow [2023-11-19 07:38:41,151 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 335 transitions, 682 flow [2023-11-19 07:38:41,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 335 transitions, 682 flow [2023-11-19 07:38:41,297 INFO L124 PetriNetUnfolderBase]: 14/335 cut-off events. [2023-11-19 07:38:41,312 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:38:41,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 335 events. 14/335 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 371 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 207. Up to 2 conditions per place. [2023-11-19 07:38:41,335 INFO L119 LiptonReduction]: Number of co-enabled transitions 23876 [2023-11-19 07:38:49,588 INFO L134 LiptonReduction]: Checked pairs total: 61680 [2023-11-19 07:38:49,588 INFO L136 LiptonReduction]: Total number of compositions: 359 [2023-11-19 07:38:49,620 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:38:49,629 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;@4bef08f0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:38:49,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-11-19 07:38:49,632 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:38:49,632 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:38:49,632 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:49,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:49,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:38:49,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:49,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1357, now seen corresponding path program 1 times [2023-11-19 07:38:49,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:49,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620903854] [2023-11-19 07:38:49,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:49,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:49,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:49,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620903854] [2023-11-19 07:38:49,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620903854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:49,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:49,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:38:49,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257908682] [2023-11-19 07:38:49,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:49,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:38:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:38:49,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:38:49,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 720 [2023-11-19 07:38:49,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 80 transitions, 172 flow. Second operand has 2 states, 2 states have (on average 345.5) internal successors, (691), 2 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:49,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:49,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 720 [2023-11-19 07:38:49,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:50,095 INFO L124 PetriNetUnfolderBase]: 309/933 cut-off events. [2023-11-19 07:38:50,097 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-19 07:38:50,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1498 conditions, 933 events. 309/933 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6082 event pairs, 267 based on Foata normal form. 59/821 useless extension candidates. Maximal degree in co-relation 1404. Up to 530 conditions per place. [2023-11-19 07:38:50,107 INFO L140 encePairwiseOnDemand]: 703/720 looper letters, 26 selfloop transitions, 0 changer transitions 1/63 dead transitions. [2023-11-19 07:38:50,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 63 transitions, 192 flow [2023-11-19 07:38:50,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:38:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:38:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 734 transitions. [2023-11-19 07:38:50,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5097222222222222 [2023-11-19 07:38:50,140 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 734 transitions. [2023-11-19 07:38:50,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 734 transitions. [2023-11-19 07:38:50,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:50,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 734 transitions. [2023-11-19 07:38:50,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 367.0) internal successors, (734), 2 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 720.0) internal successors, (2160), 3 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,172 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 720.0) internal successors, (2160), 3 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,174 INFO L175 Difference]: Start difference. First operand has 82 places, 80 transitions, 172 flow. Second operand 2 states and 734 transitions. [2023-11-19 07:38:50,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 63 transitions, 192 flow [2023-11-19 07:38:50,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 184 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:38:50,184 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 127 flow [2023-11-19 07:38:50,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=127, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2023-11-19 07:38:50,192 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -17 predicate places. [2023-11-19 07:38:50,192 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 127 flow [2023-11-19 07:38:50,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 345.5) internal successors, (691), 2 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:50,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:38:50,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:38:50,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:50,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:50,196 INFO L85 PathProgramCache]: Analyzing trace with hash 41847443, now seen corresponding path program 1 times [2023-11-19 07:38:50,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:50,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471764646] [2023-11-19 07:38:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:50,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:50,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:50,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471764646] [2023-11-19 07:38:50,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471764646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:50,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:50,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:50,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276035697] [2023-11-19 07:38:50,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:50,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:50,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:50,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:50,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:50,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 720 [2023-11-19 07:38:50,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:50,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 720 [2023-11-19 07:38:50,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:50,585 INFO L124 PetriNetUnfolderBase]: 373/1050 cut-off events. [2023-11-19 07:38:50,585 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:38:50,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 1050 events. 373/1050 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6799 event pairs, 162 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 1698. Up to 625 conditions per place. [2023-11-19 07:38:50,594 INFO L140 encePairwiseOnDemand]: 716/720 looper letters, 33 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2023-11-19 07:38:50,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 67 transitions, 208 flow [2023-11-19 07:38:50,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:50,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1051 transitions. [2023-11-19 07:38:50,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48657407407407405 [2023-11-19 07:38:50,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1051 transitions. [2023-11-19 07:38:50,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1051 transitions. [2023-11-19 07:38:50,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:50,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1051 transitions. [2023-11-19 07:38:50,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,614 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 127 flow. Second operand 3 states and 1051 transitions. [2023-11-19 07:38:50,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 67 transitions, 208 flow [2023-11-19 07:38:50,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 208 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:50,617 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 137 flow [2023-11-19 07:38:50,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2023-11-19 07:38:50,619 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -17 predicate places. [2023-11-19 07:38:50,619 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 137 flow [2023-11-19 07:38:50,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:50,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:38:50,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:38:50,621 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:50,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1565698629, now seen corresponding path program 1 times [2023-11-19 07:38:50,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:50,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262279641] [2023-11-19 07:38:50,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:50,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:50,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:50,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262279641] [2023-11-19 07:38:50,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262279641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:50,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:50,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:50,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489248398] [2023-11-19 07:38:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:50,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:50,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:50,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:50,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:50,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 720 [2023-11-19 07:38:50,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:50,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 720 [2023-11-19 07:38:50,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:50,917 INFO L124 PetriNetUnfolderBase]: 373/1060 cut-off events. [2023-11-19 07:38:50,917 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-19 07:38:50,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1770 conditions, 1060 events. 373/1060 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6979 event pairs, 137 based on Foata normal form. 0/910 useless extension candidates. Maximal degree in co-relation 1766. Up to 610 conditions per place. [2023-11-19 07:38:50,926 INFO L140 encePairwiseOnDemand]: 716/720 looper letters, 36 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2023-11-19 07:38:50,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 68 transitions, 229 flow [2023-11-19 07:38:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1052 transitions. [2023-11-19 07:38:50,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48703703703703705 [2023-11-19 07:38:50,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1052 transitions. [2023-11-19 07:38:50,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1052 transitions. [2023-11-19 07:38:50,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:50,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1052 transitions. [2023-11-19 07:38:50,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,948 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,948 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 137 flow. Second operand 3 states and 1052 transitions. [2023-11-19 07:38:50,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 68 transitions, 229 flow [2023-11-19 07:38:50,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 229 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:50,953 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 147 flow [2023-11-19 07:38:50,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2023-11-19 07:38:50,955 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2023-11-19 07:38:50,955 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 147 flow [2023-11-19 07:38:50,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:50,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:50,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:38:50,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:38:50,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:50,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:50,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1560713397, now seen corresponding path program 1 times [2023-11-19 07:38:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:50,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821849474] [2023-11-19 07:38:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:50,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:51,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:51,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821849474] [2023-11-19 07:38:51,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821849474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:51,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:51,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:51,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264277005] [2023-11-19 07:38:51,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:51,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:51,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:51,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:51,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:51,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 720 [2023-11-19 07:38:51,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:51,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 720 [2023-11-19 07:38:51,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:51,261 INFO L124 PetriNetUnfolderBase]: 373/984 cut-off events. [2023-11-19 07:38:51,261 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-19 07:38:51,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 984 events. 373/984 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6022 event pairs, 121 based on Foata normal form. 0/843 useless extension candidates. Maximal degree in co-relation 1748. Up to 600 conditions per place. [2023-11-19 07:38:51,270 INFO L140 encePairwiseOnDemand]: 716/720 looper letters, 39 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2023-11-19 07:38:51,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 69 transitions, 251 flow [2023-11-19 07:38:51,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1053 transitions. [2023-11-19 07:38:51,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4875 [2023-11-19 07:38:51,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1053 transitions. [2023-11-19 07:38:51,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1053 transitions. [2023-11-19 07:38:51,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:51,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1053 transitions. [2023-11-19 07:38:51,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,289 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 147 flow. Second operand 3 states and 1053 transitions. [2023-11-19 07:38:51,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 69 transitions, 251 flow [2023-11-19 07:38:51,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 69 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:51,292 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 157 flow [2023-11-19 07:38:51,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2023-11-19 07:38:51,294 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -15 predicate places. [2023-11-19 07:38:51,294 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 157 flow [2023-11-19 07:38:51,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:51,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:51,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:38:51,296 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:51,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:51,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1397858215, now seen corresponding path program 1 times [2023-11-19 07:38:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:51,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102711162] [2023-11-19 07:38:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:51,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:51,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:51,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102711162] [2023-11-19 07:38:51,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102711162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:51,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:51,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356548019] [2023-11-19 07:38:51,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:51,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:51,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:51,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:51,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:51,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 720 [2023-11-19 07:38:51,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:51,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 720 [2023-11-19 07:38:51,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:51,555 INFO L124 PetriNetUnfolderBase]: 382/1055 cut-off events. [2023-11-19 07:38:51,555 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-19 07:38:51,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1864 conditions, 1055 events. 382/1055 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6740 event pairs, 121 based on Foata normal form. 0/898 useless extension candidates. Maximal degree in co-relation 1858. Up to 597 conditions per place. [2023-11-19 07:38:51,564 INFO L140 encePairwiseOnDemand]: 716/720 looper letters, 40 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2023-11-19 07:38:51,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 265 flow [2023-11-19 07:38:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:51,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1054 transitions. [2023-11-19 07:38:51,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.487962962962963 [2023-11-19 07:38:51,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1054 transitions. [2023-11-19 07:38:51,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1054 transitions. [2023-11-19 07:38:51,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:51,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1054 transitions. [2023-11-19 07:38:51,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.3333333333333) internal successors, (1054), 3 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,583 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,584 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 157 flow. Second operand 3 states and 1054 transitions. [2023-11-19 07:38:51,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 265 flow [2023-11-19 07:38:51,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:51,587 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 167 flow [2023-11-19 07:38:51,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-11-19 07:38:51,588 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -14 predicate places. [2023-11-19 07:38:51,589 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 167 flow [2023-11-19 07:38:51,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:51,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:51,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:38:51,591 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:51,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:51,591 INFO L85 PathProgramCache]: Analyzing trace with hash 763364431, now seen corresponding path program 1 times [2023-11-19 07:38:51,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:51,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180519397] [2023-11-19 07:38:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:51,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:51,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:51,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180519397] [2023-11-19 07:38:51,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180519397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:51,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:51,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:51,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294011947] [2023-11-19 07:38:51,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:51,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:51,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:51,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:51,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 720 [2023-11-19 07:38:51,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:51,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 720 [2023-11-19 07:38:51,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:51,865 INFO L124 PetriNetUnfolderBase]: 501/1160 cut-off events. [2023-11-19 07:38:51,865 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2023-11-19 07:38:51,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 1160 events. 501/1160 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6497 event pairs, 158 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 2222. Up to 675 conditions per place. [2023-11-19 07:38:51,876 INFO L140 encePairwiseOnDemand]: 714/720 looper letters, 48 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2023-11-19 07:38:51,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 73 transitions, 298 flow [2023-11-19 07:38:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:51,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1046 transitions. [2023-11-19 07:38:51,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4842592592592593 [2023-11-19 07:38:51,881 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1046 transitions. [2023-11-19 07:38:51,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1046 transitions. [2023-11-19 07:38:51,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:51,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1046 transitions. [2023-11-19 07:38:51,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.6666666666667) internal successors, (1046), 3 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,895 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 167 flow. Second operand 3 states and 1046 transitions. [2023-11-19 07:38:51,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 73 transitions, 298 flow [2023-11-19 07:38:51,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 73 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:51,898 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 173 flow [2023-11-19 07:38:51,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2023-11-19 07:38:51,899 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -15 predicate places. [2023-11-19 07:38:51,900 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 173 flow [2023-11-19 07:38:51,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:51,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:51,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:38:51,902 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:51,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:51,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1155657861, now seen corresponding path program 1 times [2023-11-19 07:38:51,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:51,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383675597] [2023-11-19 07:38:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:51,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:51,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:51,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383675597] [2023-11-19 07:38:51,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383675597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:51,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:51,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:51,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250504463] [2023-11-19 07:38:51,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:51,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:51,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:51,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:51,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 720 [2023-11-19 07:38:51,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:51,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:51,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 720 [2023-11-19 07:38:51,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:52,168 INFO L124 PetriNetUnfolderBase]: 506/1085 cut-off events. [2023-11-19 07:38:52,168 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2023-11-19 07:38:52,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1085 events. 506/1085 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5677 event pairs, 159 based on Foata normal form. 0/994 useless extension candidates. Maximal degree in co-relation 2231. Up to 683 conditions per place. [2023-11-19 07:38:52,177 INFO L140 encePairwiseOnDemand]: 714/720 looper letters, 49 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2023-11-19 07:38:52,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 71 transitions, 309 flow [2023-11-19 07:38:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:52,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1046 transitions. [2023-11-19 07:38:52,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4842592592592593 [2023-11-19 07:38:52,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1046 transitions. [2023-11-19 07:38:52,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1046 transitions. [2023-11-19 07:38:52,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:52,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1046 transitions. [2023-11-19 07:38:52,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.6666666666667) internal successors, (1046), 3 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,193 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,194 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 173 flow. Second operand 3 states and 1046 transitions. [2023-11-19 07:38:52,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 71 transitions, 309 flow [2023-11-19 07:38:52,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 71 transitions, 309 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:52,197 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 179 flow [2023-11-19 07:38:52,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2023-11-19 07:38:52,198 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2023-11-19 07:38:52,198 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 179 flow [2023-11-19 07:38:52,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:52,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:52,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:38:52,200 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:52,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:52,201 INFO L85 PathProgramCache]: Analyzing trace with hash -461172181, now seen corresponding path program 1 times [2023-11-19 07:38:52,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:52,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417510069] [2023-11-19 07:38:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:52,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:52,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417510069] [2023-11-19 07:38:52,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417510069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:52,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:52,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:52,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147863758] [2023-11-19 07:38:52,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:52,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:52,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:52,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 720 [2023-11-19 07:38:52,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:52,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 720 [2023-11-19 07:38:52,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:52,418 INFO L124 PetriNetUnfolderBase]: 331/822 cut-off events. [2023-11-19 07:38:52,418 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-11-19 07:38:52,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1716 conditions, 822 events. 331/822 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4514 event pairs, 213 based on Foata normal form. 0/743 useless extension candidates. Maximal degree in co-relation 1707. Up to 495 conditions per place. [2023-11-19 07:38:52,425 INFO L140 encePairwiseOnDemand]: 716/720 looper letters, 40 selfloop transitions, 3 changer transitions 1/69 dead transitions. [2023-11-19 07:38:52,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 69 transitions, 296 flow [2023-11-19 07:38:52,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:52,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1050 transitions. [2023-11-19 07:38:52,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2023-11-19 07:38:52,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1050 transitions. [2023-11-19 07:38:52,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1050 transitions. [2023-11-19 07:38:52,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:52,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1050 transitions. [2023-11-19 07:38:52,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,441 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,441 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 179 flow. Second operand 3 states and 1050 transitions. [2023-11-19 07:38:52,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 69 transitions, 296 flow [2023-11-19 07:38:52,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 69 transitions, 296 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:52,445 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 183 flow [2023-11-19 07:38:52,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2023-11-19 07:38:52,446 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -15 predicate places. [2023-11-19 07:38:52,446 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 183 flow [2023-11-19 07:38:52,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:52,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:52,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:38:52,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-19 07:38:52,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:52,448 INFO L85 PathProgramCache]: Analyzing trace with hash 255494269, now seen corresponding path program 1 times [2023-11-19 07:38:52,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:52,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794050976] [2023-11-19 07:38:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:52,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:52,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794050976] [2023-11-19 07:38:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794050976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:52,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:52,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:52,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632421710] [2023-11-19 07:38:52,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:52,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:52,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:52,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:52,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:52,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 720 [2023-11-19 07:38:52,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 57 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:52,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 720 [2023-11-19 07:38:52,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:52,675 INFO L124 PetriNetUnfolderBase]: 331/806 cut-off events. [2023-11-19 07:38:52,675 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2023-11-19 07:38:52,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 806 events. 331/806 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4291 event pairs, 210 based on Foata normal form. 0/749 useless extension candidates. Maximal degree in co-relation 1757. Up to 488 conditions per place. [2023-11-19 07:38:52,679 INFO L140 encePairwiseOnDemand]: 716/720 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2023-11-19 07:38:52,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 69 transitions, 310 flow [2023-11-19 07:38:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:52,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1051 transitions. [2023-11-19 07:38:52,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48657407407407405 [2023-11-19 07:38:52,685 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1051 transitions. [2023-11-19 07:38:52,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1051 transitions. [2023-11-19 07:38:52,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:52,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1051 transitions. [2023-11-19 07:38:52,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,695 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 720.0) internal successors, (2880), 4 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,695 INFO L175 Difference]: Start difference. First operand has 67 places, 57 transitions, 183 flow. Second operand 3 states and 1051 transitions. [2023-11-19 07:38:52,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 69 transitions, 310 flow [2023-11-19 07:38:52,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 69 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:38:52,699 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2023-11-19 07:38:52,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=720, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2023-11-19 07:38:52,701 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2023-11-19 07:38:52,701 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2023-11-19 07:38:52,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:52,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (51 of 52 remaining) [2023-11-19 07:38:52,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2023-11-19 07:38:52,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2023-11-19 07:38:52,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2023-11-19 07:38:52,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2023-11-19 07:38:52,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2023-11-19 07:38:52,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (45 of 52 remaining) [2023-11-19 07:38:52,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2023-11-19 07:38:52,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2023-11-19 07:38:52,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2023-11-19 07:38:52,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2023-11-19 07:38:52,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2023-11-19 07:38:52,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2023-11-19 07:38:52,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2023-11-19 07:38:52,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2023-11-19 07:38:52,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2023-11-19 07:38:52,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2023-11-19 07:38:52,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2023-11-19 07:38:52,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2023-11-19 07:38:52,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2023-11-19 07:38:52,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2023-11-19 07:38:52,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2023-11-19 07:38:52,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2023-11-19 07:38:52,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2023-11-19 07:38:52,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2023-11-19 07:38:52,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2023-11-19 07:38:52,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2023-11-19 07:38:52,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2023-11-19 07:38:52,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2023-11-19 07:38:52,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2023-11-19 07:38:52,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2023-11-19 07:38:52,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2023-11-19 07:38:52,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 52 remaining) [2023-11-19 07:38:52,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 52 remaining) [2023-11-19 07:38:52,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2023-11-19 07:38:52,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2023-11-19 07:38:52,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2023-11-19 07:38:52,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2023-11-19 07:38:52,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2023-11-19 07:38:52,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2023-11-19 07:38:52,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2023-11-19 07:38:52,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2023-11-19 07:38:52,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2023-11-19 07:38:52,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2023-11-19 07:38:52,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2023-11-19 07:38:52,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2023-11-19 07:38:52,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2023-11-19 07:38:52,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2023-11-19 07:38:52,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2023-11-19 07:38:52,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2023-11-19 07:38:52,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2023-11-19 07:38:52,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2023-11-19 07:38:52,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:38:52,717 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:52,723 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:38:52,723 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:38:52,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:38:52 BasicIcfg [2023-11-19 07:38:52,727 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:38:52,728 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:38:52,728 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:38:52,728 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:38:52,729 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:40" (3/4) ... [2023-11-19 07:38:52,731 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:38:52,734 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-19 07:38:52,735 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-19 07:38:52,741 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 07:38:52,742 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:38:52,742 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:38:52,743 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:38:52,837 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:38:52,837 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:38:52,837 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:38:52,838 INFO L158 Benchmark]: Toolchain (without parser) took 13540.09ms. Allocated memory was 119.5MB in the beginning and 226.5MB in the end (delta: 107.0MB). Free memory was 75.3MB in the beginning and 149.8MB in the end (delta: -74.4MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2023-11-19 07:38:52,838 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory was 86.3MB in the beginning and 86.2MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:38:52,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.25ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 63.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:38:52,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.19ms. Allocated memory is still 119.5MB. Free memory was 63.0MB in the beginning and 60.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:52,840 INFO L158 Benchmark]: Boogie Preprocessor took 51.34ms. Allocated memory is still 119.5MB. Free memory was 60.2MB in the beginning and 58.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:52,840 INFO L158 Benchmark]: RCFGBuilder took 920.24ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 58.5MB in the beginning and 106.6MB in the end (delta: -48.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-19 07:38:52,841 INFO L158 Benchmark]: TraceAbstraction took 12087.55ms. Allocated memory was 153.1MB in the beginning and 226.5MB in the end (delta: 73.4MB). Free memory was 105.5MB in the beginning and 155.0MB in the end (delta: -49.5MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:52,841 INFO L158 Benchmark]: Witness Printer took 109.48ms. Allocated memory is still 226.5MB. Free memory was 155.0MB in the beginning and 149.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:38:52,843 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory was 86.3MB in the beginning and 86.2MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.25ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 63.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.19ms. Allocated memory is still 119.5MB. Free memory was 63.0MB in the beginning and 60.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.34ms. Allocated memory is still 119.5MB. Free memory was 60.2MB in the beginning and 58.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 920.24ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 58.5MB in the beginning and 106.6MB in the end (delta: -48.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12087.55ms. Allocated memory was 153.1MB in the beginning and 226.5MB in the end (delta: 73.4MB). Free memory was 105.5MB in the beginning and 155.0MB in the end (delta: -49.5MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. * Witness Printer took 109.48ms. Allocated memory is still 226.5MB. Free memory was 155.0MB in the beginning and 149.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4s, 328 PlacesBefore, 82 PlacesAfterwards, 335 TransitionsBefore, 80 TransitionsAfterwards, 23876 CoEnabledTransitionPairs, 9 FixpointIterations, 140 TrivialSequentialCompositions, 154 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 42 ConcurrentYvCompositions, 9 ChoiceCompositions, 359 TotalNumberOfCompositions, 61680 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35139, independent: 34260, independent conditional: 0, independent unconditional: 34260, dependent: 879, dependent conditional: 0, dependent unconditional: 879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13822, independent: 13699, independent conditional: 0, independent unconditional: 13699, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35139, independent: 20561, independent conditional: 0, independent unconditional: 20561, dependent: 756, dependent conditional: 0, dependent unconditional: 756, unknown: 13822, unknown conditional: 0, unknown unconditional: 13822] , Statistics on independence cache: Total cache size (in pairs): 883, Positive cache size: 827, Positive conditional cache size: 0, Positive unconditional cache size: 827, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 528 locations, 52 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 324 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 518 IncrementalHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 34 mSDtfsCounter, 518 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=8, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:38:52,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c3e1f50-5ad2-4cf7-ad61-635895fb0d7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE