./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:59:47,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:59:47,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:59:47,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:59:47,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:59:47,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:59:47,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:59:47,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:59:47,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:59:47,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:59:47,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:59:47,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:59:47,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:59:47,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:59:47,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:59:47,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:59:47,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:59:47,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:59:47,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:59:47,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:59:47,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:59:47,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:59:47,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:59:47,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:59:47,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:59:47,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:59:47,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:59:47,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:59:47,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:59:47,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:59:47,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:59:47,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:59:47,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:59:47,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:59:47,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:59:47,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:59:47,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:59:47,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:59:47,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:59:47,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:59:47,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:59:47,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 17:59:47,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:59:47,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:59:47,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:59:47,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:59:47,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:59:47,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:59:47,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:59:47,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:59:47,092 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:59:47,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:59:47,093 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:59:47,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:59:47,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:59:47,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:59:47,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:59:47,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:59:47,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:59:47,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:59:47,094 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 17:59:47,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:59:47,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:59:47,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:59:47,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:59:47,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:59:47,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:59:47,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:59:47,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:59:47,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:59:47,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:59:47,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:59:47,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:59:47,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:59:47,096 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:59:47,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:59:47,096 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:59:47,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:59:47,096 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:59:47,097 INFO L138 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_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2022-12-13 17:59:47,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:59:47,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:59:47,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:59:47,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:59:47,307 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:59:47,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2022-12-13 17:59:49,858 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:59:50,014 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:59:50,015 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2022-12-13 17:59:50,021 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/data/7393aa95c/704fd3ccbf3948af815209782a4a2958/FLAGd0f97f9cb [2022-12-13 17:59:50,035 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/data/7393aa95c/704fd3ccbf3948af815209782a4a2958 [2022-12-13 17:59:50,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:59:50,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:59:50,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:59:50,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:59:50,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:59:50,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1677c713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50, skipping insertion in model container [2022-12-13 17:59:50,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:59:50,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:59:50,218 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-12-13 17:59:50,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:59:50,231 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:59:50,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-12-13 17:59:50,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:59:50,267 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:59:50,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50 WrapperNode [2022-12-13 17:59:50,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:59:50,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:59:50,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:59:50,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:59:50,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,308 INFO L138 Inliner]: procedures = 25, calls = 39, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 364 [2022-12-13 17:59:50,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:59:50,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:59:50,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:59:50,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:59:50,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,337 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:59:50,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:59:50,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:59:50,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:59:50,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (1/1) ... [2022-12-13 17:59:50,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:59:50,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:50,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:59:50,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:59:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:59:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:59:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:59:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:59:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 17:59:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 17:59:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 17:59:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 17:59:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:59:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 17:59:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:59:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:59:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:59:50,410 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:59:50,513 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:59:50,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:59:51,008 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:59:51,020 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:59:51,020 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 17:59:51,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:51 BoogieIcfgContainer [2022-12-13 17:59:51,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:59:51,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:59:51,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:59:51,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:59:51,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:59:50" (1/3) ... [2022-12-13 17:59:51,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345bb18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:59:51, skipping insertion in model container [2022-12-13 17:59:51,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:50" (2/3) ... [2022-12-13 17:59:51,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345bb18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:59:51, skipping insertion in model container [2022-12-13 17:59:51,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:51" (3/3) ... [2022-12-13 17:59:51,028 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2022-12-13 17:59:51,035 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:59:51,043 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:59:51,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-12-13 17:59:51,043 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:59:51,124 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 17:59:51,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 453 places, 472 transitions, 960 flow [2022-12-13 17:59:51,290 INFO L130 PetriNetUnfolder]: 26/470 cut-off events. [2022-12-13 17:59:51,290 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:59:51,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 470 events. 26/470 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 937 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 271. Up to 3 conditions per place. [2022-12-13 17:59:51,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 453 places, 472 transitions, 960 flow [2022-12-13 17:59:51,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 449 transitions, 910 flow [2022-12-13 17:59:51,307 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:59:51,315 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 449 transitions, 910 flow [2022-12-13 17:59:51,317 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 449 transitions, 910 flow [2022-12-13 17:59:51,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 432 places, 449 transitions, 910 flow [2022-12-13 17:59:51,383 INFO L130 PetriNetUnfolder]: 24/449 cut-off events. [2022-12-13 17:59:51,383 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:59:51,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 449 events. 24/449 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 889 event pairs, 0 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 271. Up to 3 conditions per place. [2022-12-13 17:59:51,394 INFO L119 LiptonReduction]: Number of co-enabled transitions 33516 [2022-12-13 17:59:59,420 INFO L134 LiptonReduction]: Checked pairs total: 180167 [2022-12-13 17:59:59,420 INFO L136 LiptonReduction]: Total number of compositions: 416 [2022-12-13 17:59:59,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:59:59,438 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ef2a2cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:59:59,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-12-13 17:59:59,439 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 17:59:59,439 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:59,439 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:59,439 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 17:59:59,440 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 17:59:59,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:59,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1715, now seen corresponding path program 1 times [2022-12-13 17:59:59,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:59,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333728302] [2022-12-13 17:59:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:59,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:59,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:59,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333728302] [2022-12-13 17:59:59,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333728302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:59,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:59,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 17:59:59,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328938265] [2022-12-13 17:59:59,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:59,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:59:59,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:59,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:59:59,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:59:59,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 888 [2022-12-13 17:59:59,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 148 transitions, 308 flow. Second operand has 2 states, 2 states have (on average 452.5) internal successors, (905), 2 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:59,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 888 [2022-12-13 17:59:59,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:59,799 INFO L130 PetriNetUnfolder]: 494/2129 cut-off events. [2022-12-13 17:59:59,799 INFO L131 PetriNetUnfolder]: For 62/78 co-relation queries the response was YES. [2022-12-13 17:59:59,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2943 conditions, 2129 events. 494/2129 cut-off events. For 62/78 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 16579 event pairs, 348 based on Foata normal form. 133/1899 useless extension candidates. Maximal degree in co-relation 2705. Up to 777 conditions per place. [2022-12-13 17:59:59,809 INFO L137 encePairwiseOnDemand]: 868/888 looper letters, 37 selfloop transitions, 0 changer transitions 1/128 dead transitions. [2022-12-13 17:59:59,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 128 transitions, 344 flow [2022-12-13 17:59:59,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:59:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:59:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 962 transitions. [2022-12-13 17:59:59,825 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2022-12-13 17:59:59,825 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 962 transitions. [2022-12-13 17:59:59,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 962 transitions. [2022-12-13 17:59:59,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:59,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 962 transitions. [2022-12-13 17:59:59,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 481.0) internal successors, (962), 2 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 888.0) internal successors, (2664), 3 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,845 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 888.0) internal successors, (2664), 3 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,847 INFO L175 Difference]: Start difference. First operand has 145 places, 148 transitions, 308 flow. Second operand 2 states and 962 transitions. [2022-12-13 17:59:59,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 128 transitions, 344 flow [2022-12-13 17:59:59,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 128 transitions, 336 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:59:59,854 INFO L231 Difference]: Finished difference. Result has 124 places, 127 transitions, 257 flow [2022-12-13 17:59:59,856 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=257, PETRI_PLACES=124, PETRI_TRANSITIONS=127} [2022-12-13 17:59:59,860 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -21 predicate places. [2022-12-13 17:59:59,860 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 127 transitions, 257 flow [2022-12-13 17:59:59,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 452.5) internal successors, (905), 2 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,861 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:59,861 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:59:59,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:59:59,862 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 17:59:59,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash -393561726, now seen corresponding path program 1 times [2022-12-13 17:59:59,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:59,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693595764] [2022-12-13 17:59:59,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:59,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:59,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:59,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:59,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693595764] [2022-12-13 17:59:59,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693595764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:59,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:59,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:59:59,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609505700] [2022-12-13 17:59:59,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:59,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:59:59,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:59,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:59:59,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:00,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 888 [2022-12-13 18:00:00,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 127 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:00,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 888 [2022-12-13 18:00:00,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:00,290 INFO L130 PetriNetUnfolder]: 701/2583 cut-off events. [2022-12-13 18:00:00,290 INFO L131 PetriNetUnfolder]: For 15/38 co-relation queries the response was YES. [2022-12-13 18:00:00,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3708 conditions, 2583 events. 701/2583 cut-off events. For 15/38 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 19673 event pairs, 525 based on Foata normal form. 0/2185 useless extension candidates. Maximal degree in co-relation 3705. Up to 1110 conditions per place. [2022-12-13 18:00:00,302 INFO L137 encePairwiseOnDemand]: 883/888 looper letters, 41 selfloop transitions, 1 changer transitions 0/123 dead transitions. [2022-12-13 18:00:00,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 123 transitions, 333 flow [2022-12-13 18:00:00,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:00,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:00:00,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1354 transitions. [2022-12-13 18:00:00,304 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5082582582582582 [2022-12-13 18:00:00,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1354 transitions. [2022-12-13 18:00:00,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1354 transitions. [2022-12-13 18:00:00,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:00,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1354 transitions. [2022-12-13 18:00:00,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,311 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,311 INFO L175 Difference]: Start difference. First operand has 124 places, 127 transitions, 257 flow. Second operand 3 states and 1354 transitions. [2022-12-13 18:00:00,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 123 transitions, 333 flow [2022-12-13 18:00:00,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 123 transitions, 333 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:00:00,314 INFO L231 Difference]: Finished difference. Result has 121 places, 123 transitions, 251 flow [2022-12-13 18:00:00,314 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=121, PETRI_TRANSITIONS=123} [2022-12-13 18:00:00,315 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -24 predicate places. [2022-12-13 18:00:00,315 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 123 transitions, 251 flow [2022-12-13 18:00:00,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:00,316 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:00,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:00:00,316 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:00,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:00,316 INFO L85 PathProgramCache]: Analyzing trace with hash -255661884, now seen corresponding path program 1 times [2022-12-13 18:00:00,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:00,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998736864] [2022-12-13 18:00:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:00,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:00,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:00,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998736864] [2022-12-13 18:00:00,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998736864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:00,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:00,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:00:00,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015610193] [2022-12-13 18:00:00,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:00,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:00:00,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:00,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:00:00,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:00,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 888 [2022-12-13 18:00:00,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 123 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:00,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 888 [2022-12-13 18:00:00,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:00,600 INFO L130 PetriNetUnfolder]: 623/2412 cut-off events. [2022-12-13 18:00:00,600 INFO L131 PetriNetUnfolder]: For 10/28 co-relation queries the response was YES. [2022-12-13 18:00:00,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3413 conditions, 2412 events. 623/2412 cut-off events. For 10/28 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 18599 event pairs, 459 based on Foata normal form. 0/2062 useless extension candidates. Maximal degree in co-relation 3409. Up to 982 conditions per place. [2022-12-13 18:00:00,608 INFO L137 encePairwiseOnDemand]: 883/888 looper letters, 39 selfloop transitions, 1 changer transitions 0/119 dead transitions. [2022-12-13 18:00:00,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 119 transitions, 323 flow [2022-12-13 18:00:00,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:00,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:00:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1352 transitions. [2022-12-13 18:00:00,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5075075075075075 [2022-12-13 18:00:00,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1352 transitions. [2022-12-13 18:00:00,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1352 transitions. [2022-12-13 18:00:00,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:00,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1352 transitions. [2022-12-13 18:00:00,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,617 INFO L175 Difference]: Start difference. First operand has 121 places, 123 transitions, 251 flow. Second operand 3 states and 1352 transitions. [2022-12-13 18:00:00,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 119 transitions, 323 flow [2022-12-13 18:00:00,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 119 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:00:00,620 INFO L231 Difference]: Finished difference. Result has 118 places, 119 transitions, 244 flow [2022-12-13 18:00:00,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=118, PETRI_TRANSITIONS=119} [2022-12-13 18:00:00,621 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -27 predicate places. [2022-12-13 18:00:00,621 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 119 transitions, 244 flow [2022-12-13 18:00:00,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,622 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:00,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:00,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:00:00,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:00,623 INFO L85 PathProgramCache]: Analyzing trace with hash -453448685, now seen corresponding path program 1 times [2022-12-13 18:00:00,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:00,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662263376] [2022-12-13 18:00:00,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:01,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:01,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662263376] [2022-12-13 18:00:01,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662263376] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:01,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:01,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:00:01,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306283660] [2022-12-13 18:00:01,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:01,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:01,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:01,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:01,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:01,386 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 888 [2022-12-13 18:00:01,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 119 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 436.8333333333333) internal successors, (2621), 6 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:01,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:01,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 888 [2022-12-13 18:00:01,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:01,829 INFO L130 PetriNetUnfolder]: 1606/3294 cut-off events. [2022-12-13 18:00:01,829 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:00:01,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5665 conditions, 3294 events. 1606/3294 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 21824 event pairs, 112 based on Foata normal form. 0/2710 useless extension candidates. Maximal degree in co-relation 5661. Up to 846 conditions per place. [2022-12-13 18:00:01,841 INFO L137 encePairwiseOnDemand]: 883/888 looper letters, 141 selfloop transitions, 4 changer transitions 0/222 dead transitions. [2022-12-13 18:00:01,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 222 transitions, 740 flow [2022-12-13 18:00:01,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:01,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:01,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2756 transitions. [2022-12-13 18:00:01,847 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5172672672672672 [2022-12-13 18:00:01,847 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2756 transitions. [2022-12-13 18:00:01,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2756 transitions. [2022-12-13 18:00:01,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:01,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2756 transitions. [2022-12-13 18:00:01,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 459.3333333333333) internal successors, (2756), 6 states have internal predecessors, (2756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:01,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:01,866 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:01,866 INFO L175 Difference]: Start difference. First operand has 118 places, 119 transitions, 244 flow. Second operand 6 states and 2756 transitions. [2022-12-13 18:00:01,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 222 transitions, 740 flow [2022-12-13 18:00:01,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 222 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:00:01,870 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 249 flow [2022-12-13 18:00:01,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=121, PETRI_TRANSITIONS=118} [2022-12-13 18:00:01,871 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -24 predicate places. [2022-12-13 18:00:01,871 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 249 flow [2022-12-13 18:00:01,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.8333333333333) internal successors, (2621), 6 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:01,873 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:01,873 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:01,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:00:01,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:01,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:01,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1381102135, now seen corresponding path program 1 times [2022-12-13 18:00:01,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:01,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716128488] [2022-12-13 18:00:01,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:01,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:01,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:01,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716128488] [2022-12-13 18:00:01,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716128488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:01,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:01,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:00:01,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116350467] [2022-12-13 18:00:01,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:01,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:00:01,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:01,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:00:01,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:01,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 888 [2022-12-13 18:00:01,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 446.6666666666667) internal successors, (1340), 3 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:01,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:01,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 888 [2022-12-13 18:00:01,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:02,179 INFO L130 PetriNetUnfolder]: 539/2188 cut-off events. [2022-12-13 18:00:02,179 INFO L131 PetriNetUnfolder]: For 137/137 co-relation queries the response was YES. [2022-12-13 18:00:02,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3201 conditions, 2188 events. 539/2188 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 16300 event pairs, 348 based on Foata normal form. 0/1861 useless extension candidates. Maximal degree in co-relation 3197. Up to 776 conditions per place. [2022-12-13 18:00:02,192 INFO L137 encePairwiseOnDemand]: 885/888 looper letters, 54 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2022-12-13 18:00:02,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 137 transitions, 402 flow [2022-12-13 18:00:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:02,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:00:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1389 transitions. [2022-12-13 18:00:02,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5213963963963963 [2022-12-13 18:00:02,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1389 transitions. [2022-12-13 18:00:02,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1389 transitions. [2022-12-13 18:00:02,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:02,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1389 transitions. [2022-12-13 18:00:02,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,207 INFO L175 Difference]: Start difference. First operand has 121 places, 118 transitions, 249 flow. Second operand 3 states and 1389 transitions. [2022-12-13 18:00:02,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 137 transitions, 402 flow [2022-12-13 18:00:02,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 137 transitions, 393 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 18:00:02,210 INFO L231 Difference]: Finished difference. Result has 120 places, 119 transitions, 254 flow [2022-12-13 18:00:02,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2022-12-13 18:00:02,210 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -25 predicate places. [2022-12-13 18:00:02,211 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 254 flow [2022-12-13 18:00:02,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.6666666666667) internal successors, (1340), 3 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,211 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:02,211 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:02,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:00:02,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:02,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:02,212 INFO L85 PathProgramCache]: Analyzing trace with hash -105584177, now seen corresponding path program 1 times [2022-12-13 18:00:02,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:02,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767087071] [2022-12-13 18:00:02,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:02,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:02,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:02,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767087071] [2022-12-13 18:00:02,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767087071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:02,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:02,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:00:02,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462269563] [2022-12-13 18:00:02,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:02,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:00:02,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:02,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:00:02,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:02,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 888 [2022-12-13 18:00:02,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:02,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 888 [2022-12-13 18:00:02,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:02,512 INFO L130 PetriNetUnfolder]: 837/2728 cut-off events. [2022-12-13 18:00:02,512 INFO L131 PetriNetUnfolder]: For 221/229 co-relation queries the response was YES. [2022-12-13 18:00:02,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4305 conditions, 2728 events. 837/2728 cut-off events. For 221/229 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 20141 event pairs, 187 based on Foata normal form. 0/2416 useless extension candidates. Maximal degree in co-relation 4300. Up to 1058 conditions per place. [2022-12-13 18:00:02,521 INFO L137 encePairwiseOnDemand]: 882/888 looper letters, 59 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2022-12-13 18:00:02,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 135 transitions, 420 flow [2022-12-13 18:00:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:00:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2022-12-13 18:00:02,523 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5180180180180181 [2022-12-13 18:00:02,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1380 transitions. [2022-12-13 18:00:02,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1380 transitions. [2022-12-13 18:00:02,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:02,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1380 transitions. [2022-12-13 18:00:02,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,529 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,529 INFO L175 Difference]: Start difference. First operand has 120 places, 119 transitions, 254 flow. Second operand 3 states and 1380 transitions. [2022-12-13 18:00:02,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 135 transitions, 420 flow [2022-12-13 18:00:02,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 135 transitions, 416 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:00:02,531 INFO L231 Difference]: Finished difference. Result has 118 places, 117 transitions, 260 flow [2022-12-13 18:00:02,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=118, PETRI_TRANSITIONS=117} [2022-12-13 18:00:02,532 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -27 predicate places. [2022-12-13 18:00:02,532 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 117 transitions, 260 flow [2022-12-13 18:00:02,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,532 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:02,532 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:02,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:00:02,532 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:02,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1730673883, now seen corresponding path program 1 times [2022-12-13 18:00:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:02,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749970406] [2022-12-13 18:00:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:02,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:02,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749970406] [2022-12-13 18:00:02,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749970406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:02,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:02,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:00:02,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782408331] [2022-12-13 18:00:02,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:02,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:00:02,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:02,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:00:02,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:02,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 888 [2022-12-13 18:00:02,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 117 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 447.6666666666667) internal successors, (1343), 3 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:02,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 888 [2022-12-13 18:00:02,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:02,809 INFO L130 PetriNetUnfolder]: 766/2505 cut-off events. [2022-12-13 18:00:02,809 INFO L131 PetriNetUnfolder]: For 266/274 co-relation queries the response was YES. [2022-12-13 18:00:02,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4045 conditions, 2505 events. 766/2505 cut-off events. For 266/274 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 18384 event pairs, 489 based on Foata normal form. 38/2329 useless extension candidates. Maximal degree in co-relation 4040. Up to 1113 conditions per place. [2022-12-13 18:00:02,817 INFO L137 encePairwiseOnDemand]: 885/888 looper letters, 55 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2022-12-13 18:00:02,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 134 transitions, 424 flow [2022-12-13 18:00:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:02,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:00:02,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2022-12-13 18:00:02,821 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5198948948948949 [2022-12-13 18:00:02,821 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2022-12-13 18:00:02,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2022-12-13 18:00:02,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:02,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2022-12-13 18:00:02,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,830 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,831 INFO L175 Difference]: Start difference. First operand has 118 places, 117 transitions, 260 flow. Second operand 3 states and 1385 transitions. [2022-12-13 18:00:02,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 134 transitions, 424 flow [2022-12-13 18:00:02,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 134 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:00:02,833 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 274 flow [2022-12-13 18:00:02,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=121, PETRI_TRANSITIONS=118} [2022-12-13 18:00:02,834 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -24 predicate places. [2022-12-13 18:00:02,834 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 274 flow [2022-12-13 18:00:02,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.6666666666667) internal successors, (1343), 3 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:02,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:02,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:00:02,836 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:02,836 INFO L85 PathProgramCache]: Analyzing trace with hash -487409485, now seen corresponding path program 1 times [2022-12-13 18:00:02,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:02,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684376892] [2022-12-13 18:00:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:02,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:02,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:02,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684376892] [2022-12-13 18:00:02,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684376892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:02,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:02,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:00:02,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245408542] [2022-12-13 18:00:02,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:02,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:00:02,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:02,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:00:02,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:00:03,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 888 [2022-12-13 18:00:03,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 437.8) internal successors, (2189), 5 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:03,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 888 [2022-12-13 18:00:03,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:03,470 INFO L130 PetriNetUnfolder]: 1097/3564 cut-off events. [2022-12-13 18:00:03,470 INFO L131 PetriNetUnfolder]: For 637/643 co-relation queries the response was YES. [2022-12-13 18:00:03,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6112 conditions, 3564 events. 1097/3564 cut-off events. For 637/643 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 28703 event pairs, 694 based on Foata normal form. 40/3325 useless extension candidates. Maximal degree in co-relation 6105. Up to 1212 conditions per place. [2022-12-13 18:00:03,480 INFO L137 encePairwiseOnDemand]: 883/888 looper letters, 88 selfloop transitions, 4 changer transitions 0/169 dead transitions. [2022-12-13 18:00:03,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 169 transitions, 603 flow [2022-12-13 18:00:03,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:00:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 18:00:03,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2265 transitions. [2022-12-13 18:00:03,484 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5101351351351351 [2022-12-13 18:00:03,484 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2265 transitions. [2022-12-13 18:00:03,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2265 transitions. [2022-12-13 18:00:03,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:03,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2265 transitions. [2022-12-13 18:00:03,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 453.0) internal successors, (2265), 5 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 888.0) internal successors, (5328), 6 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,493 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 888.0) internal successors, (5328), 6 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,493 INFO L175 Difference]: Start difference. First operand has 121 places, 118 transitions, 274 flow. Second operand 5 states and 2265 transitions. [2022-12-13 18:00:03,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 169 transitions, 603 flow [2022-12-13 18:00:03,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 169 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:00:03,496 INFO L231 Difference]: Finished difference. Result has 127 places, 121 transitions, 301 flow [2022-12-13 18:00:03,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=301, PETRI_PLACES=127, PETRI_TRANSITIONS=121} [2022-12-13 18:00:03,497 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -18 predicate places. [2022-12-13 18:00:03,497 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 121 transitions, 301 flow [2022-12-13 18:00:03,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 437.8) internal successors, (2189), 5 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:03,498 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:03,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:00:03,498 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:03,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:03,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1568267831, now seen corresponding path program 1 times [2022-12-13 18:00:03,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:03,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585742036] [2022-12-13 18:00:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:03,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:03,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:03,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585742036] [2022-12-13 18:00:03,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585742036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:03,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:03,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:00:03,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061536764] [2022-12-13 18:00:03,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:03,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:00:03,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:03,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:00:03,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:00:03,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 888 [2022-12-13 18:00:03,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 442.4) internal successors, (2212), 5 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:03,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 888 [2022-12-13 18:00:03,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:03,963 INFO L130 PetriNetUnfolder]: 839/2852 cut-off events. [2022-12-13 18:00:03,963 INFO L131 PetriNetUnfolder]: For 522/533 co-relation queries the response was YES. [2022-12-13 18:00:03,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4871 conditions, 2852 events. 839/2852 cut-off events. For 522/533 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 21639 event pairs, 558 based on Foata normal form. 12/2632 useless extension candidates. Maximal degree in co-relation 4861. Up to 1212 conditions per place. [2022-12-13 18:00:03,975 INFO L137 encePairwiseOnDemand]: 883/888 looper letters, 62 selfloop transitions, 4 changer transitions 0/143 dead transitions. [2022-12-13 18:00:03,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 143 transitions, 497 flow [2022-12-13 18:00:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:00:03,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 18:00:03,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2263 transitions. [2022-12-13 18:00:03,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5096846846846846 [2022-12-13 18:00:03,980 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2263 transitions. [2022-12-13 18:00:03,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2263 transitions. [2022-12-13 18:00:03,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:03,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2263 transitions. [2022-12-13 18:00:03,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 452.6) internal successors, (2263), 5 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 888.0) internal successors, (5328), 6 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,993 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 888.0) internal successors, (5328), 6 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,993 INFO L175 Difference]: Start difference. First operand has 127 places, 121 transitions, 301 flow. Second operand 5 states and 2263 transitions. [2022-12-13 18:00:03,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 143 transitions, 497 flow [2022-12-13 18:00:03,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 143 transitions, 493 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 18:00:03,997 INFO L231 Difference]: Finished difference. Result has 132 places, 122 transitions, 314 flow [2022-12-13 18:00:03,998 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=132, PETRI_TRANSITIONS=122} [2022-12-13 18:00:03,998 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -13 predicate places. [2022-12-13 18:00:03,998 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 122 transitions, 314 flow [2022-12-13 18:00:03,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 442.4) internal successors, (2212), 5 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,999 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:03,999 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:04,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:00:04,000 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:04,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:04,000 INFO L85 PathProgramCache]: Analyzing trace with hash -551977027, now seen corresponding path program 1 times [2022-12-13 18:00:04,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:04,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898707599] [2022-12-13 18:00:04,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:04,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:04,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 18:00:04,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:04,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898707599] [2022-12-13 18:00:04,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898707599] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:04,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:04,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:00:04,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11487561] [2022-12-13 18:00:04,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:04,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:04,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:04,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:04,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:04,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 888 [2022-12-13 18:00:04,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 122 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 433.6666666666667) internal successors, (2602), 6 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:04,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:04,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 888 [2022-12-13 18:00:04,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:04,817 INFO L130 PetriNetUnfolder]: 1411/4372 cut-off events. [2022-12-13 18:00:04,817 INFO L131 PetriNetUnfolder]: For 1052/1065 co-relation queries the response was YES. [2022-12-13 18:00:04,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8005 conditions, 4372 events. 1411/4372 cut-off events. For 1052/1065 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 35688 event pairs, 788 based on Foata normal form. 40/4100 useless extension candidates. Maximal degree in co-relation 7993. Up to 1358 conditions per place. [2022-12-13 18:00:04,829 INFO L137 encePairwiseOnDemand]: 880/888 looper letters, 111 selfloop transitions, 10 changer transitions 0/198 dead transitions. [2022-12-13 18:00:04,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 198 transitions, 796 flow [2022-12-13 18:00:04,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:04,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:04,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2695 transitions. [2022-12-13 18:00:04,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5058183183183184 [2022-12-13 18:00:04,835 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2695 transitions. [2022-12-13 18:00:04,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2695 transitions. [2022-12-13 18:00:04,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:04,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2695 transitions. [2022-12-13 18:00:04,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 449.1666666666667) internal successors, (2695), 6 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:04,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:04,848 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:04,848 INFO L175 Difference]: Start difference. First operand has 132 places, 122 transitions, 314 flow. Second operand 6 states and 2695 transitions. [2022-12-13 18:00:04,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 198 transitions, 796 flow [2022-12-13 18:00:04,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 198 transitions, 791 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 18:00:04,857 INFO L231 Difference]: Finished difference. Result has 139 places, 130 transitions, 394 flow [2022-12-13 18:00:04,857 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=394, PETRI_PLACES=139, PETRI_TRANSITIONS=130} [2022-12-13 18:00:04,857 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -6 predicate places. [2022-12-13 18:00:04,858 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 130 transitions, 394 flow [2022-12-13 18:00:04,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.6666666666667) internal successors, (2602), 6 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:04,858 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:04,858 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:04,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 18:00:04,859 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash -137158265, now seen corresponding path program 1 times [2022-12-13 18:00:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:04,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530235505] [2022-12-13 18:00:04,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:00:05,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:05,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530235505] [2022-12-13 18:00:05,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530235505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:05,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:05,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:00:05,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627860592] [2022-12-13 18:00:05,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:05,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:05,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:05,554 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 888 [2022-12-13 18:00:05,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 130 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 430.6666666666667) internal successors, (2584), 6 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:05,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:05,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 888 [2022-12-13 18:00:05,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:06,150 INFO L130 PetriNetUnfolder]: 1941/5370 cut-off events. [2022-12-13 18:00:06,151 INFO L131 PetriNetUnfolder]: For 2949/2975 co-relation queries the response was YES. [2022-12-13 18:00:06,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10881 conditions, 5370 events. 1941/5370 cut-off events. For 2949/2975 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 43141 event pairs, 996 based on Foata normal form. 0/5030 useless extension candidates. Maximal degree in co-relation 10865. Up to 2136 conditions per place. [2022-12-13 18:00:06,168 INFO L137 encePairwiseOnDemand]: 881/888 looper letters, 136 selfloop transitions, 5 changer transitions 0/206 dead transitions. [2022-12-13 18:00:06,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 206 transitions, 889 flow [2022-12-13 18:00:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2691 transitions. [2022-12-13 18:00:06,171 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5050675675675675 [2022-12-13 18:00:06,171 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2691 transitions. [2022-12-13 18:00:06,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2691 transitions. [2022-12-13 18:00:06,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:06,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2691 transitions. [2022-12-13 18:00:06,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 448.5) internal successors, (2691), 6 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,179 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,179 INFO L175 Difference]: Start difference. First operand has 139 places, 130 transitions, 394 flow. Second operand 6 states and 2691 transitions. [2022-12-13 18:00:06,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 206 transitions, 889 flow [2022-12-13 18:00:06,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 206 transitions, 884 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 18:00:06,185 INFO L231 Difference]: Finished difference. Result has 141 places, 128 transitions, 395 flow [2022-12-13 18:00:06,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=395, PETRI_PLACES=141, PETRI_TRANSITIONS=128} [2022-12-13 18:00:06,186 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -4 predicate places. [2022-12-13 18:00:06,186 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 395 flow [2022-12-13 18:00:06,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 430.6666666666667) internal successors, (2584), 6 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:06,187 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:06,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 18:00:06,187 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:06,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:06,187 INFO L85 PathProgramCache]: Analyzing trace with hash -433325971, now seen corresponding path program 1 times [2022-12-13 18:00:06,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:06,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736942363] [2022-12-13 18:00:06,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:06,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 18:00:06,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:06,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736942363] [2022-12-13 18:00:06,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736942363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:06,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:06,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:00:06,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034507910] [2022-12-13 18:00:06,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:06,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:06,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:06,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:06,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:06,472 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 888 [2022-12-13 18:00:06,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 128 transitions, 395 flow. Second operand has 6 states, 6 states have (on average 434.1666666666667) internal successors, (2605), 6 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:06,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 888 [2022-12-13 18:00:06,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:06,874 INFO L130 PetriNetUnfolder]: 1137/3672 cut-off events. [2022-12-13 18:00:06,874 INFO L131 PetriNetUnfolder]: For 2044/2063 co-relation queries the response was YES. [2022-12-13 18:00:06,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7303 conditions, 3672 events. 1137/3672 cut-off events. For 2044/2063 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 28146 event pairs, 720 based on Foata normal form. 16/3473 useless extension candidates. Maximal degree in co-relation 7287. Up to 1466 conditions per place. [2022-12-13 18:00:06,886 INFO L137 encePairwiseOnDemand]: 880/888 looper letters, 81 selfloop transitions, 10 changer transitions 0/166 dead transitions. [2022-12-13 18:00:06,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 166 transitions, 750 flow [2022-12-13 18:00:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:06,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2668 transitions. [2022-12-13 18:00:06,890 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5007507507507507 [2022-12-13 18:00:06,890 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2668 transitions. [2022-12-13 18:00:06,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2668 transitions. [2022-12-13 18:00:06,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:06,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2668 transitions. [2022-12-13 18:00:06,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 444.6666666666667) internal successors, (2668), 6 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,897 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,897 INFO L175 Difference]: Start difference. First operand has 141 places, 128 transitions, 395 flow. Second operand 6 states and 2668 transitions. [2022-12-13 18:00:06,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 166 transitions, 750 flow [2022-12-13 18:00:06,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 166 transitions, 740 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 18:00:06,902 INFO L231 Difference]: Finished difference. Result has 144 places, 134 transitions, 456 flow [2022-12-13 18:00:06,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=456, PETRI_PLACES=144, PETRI_TRANSITIONS=134} [2022-12-13 18:00:06,903 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -1 predicate places. [2022-12-13 18:00:06,903 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 134 transitions, 456 flow [2022-12-13 18:00:06,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 434.1666666666667) internal successors, (2605), 6 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:06,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:06,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:06,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 18:00:06,913 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash -458846237, now seen corresponding path program 1 times [2022-12-13 18:00:06,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:06,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118267006] [2022-12-13 18:00:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:06,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:00:07,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:07,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118267006] [2022-12-13 18:00:07,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118267006] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:07,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:07,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:00:07,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323075465] [2022-12-13 18:00:07,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:07,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:07,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:07,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:07,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:07,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 888 [2022-12-13 18:00:07,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 134 transitions, 456 flow. Second operand has 6 states, 6 states have (on average 431.1666666666667) internal successors, (2587), 6 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:07,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:07,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 888 [2022-12-13 18:00:07,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:07,973 INFO L130 PetriNetUnfolder]: 1425/3704 cut-off events. [2022-12-13 18:00:07,973 INFO L131 PetriNetUnfolder]: For 3050/3072 co-relation queries the response was YES. [2022-12-13 18:00:07,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8392 conditions, 3704 events. 1425/3704 cut-off events. For 3050/3072 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 27094 event pairs, 688 based on Foata normal form. 0/3481 useless extension candidates. Maximal degree in co-relation 8373. Up to 1494 conditions per place. [2022-12-13 18:00:07,985 INFO L137 encePairwiseOnDemand]: 881/888 looper letters, 123 selfloop transitions, 5 changer transitions 0/192 dead transitions. [2022-12-13 18:00:07,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 192 transitions, 936 flow [2022-12-13 18:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2672 transitions. [2022-12-13 18:00:07,989 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5015015015015015 [2022-12-13 18:00:07,989 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2672 transitions. [2022-12-13 18:00:07,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2672 transitions. [2022-12-13 18:00:07,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:07,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2672 transitions. [2022-12-13 18:00:07,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 445.3333333333333) internal successors, (2672), 6 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:07,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:07,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:07,995 INFO L175 Difference]: Start difference. First operand has 144 places, 134 transitions, 456 flow. Second operand 6 states and 2672 transitions. [2022-12-13 18:00:07,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 192 transitions, 936 flow [2022-12-13 18:00:08,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 192 transitions, 929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 18:00:08,003 INFO L231 Difference]: Finished difference. Result has 145 places, 132 transitions, 455 flow [2022-12-13 18:00:08,004 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=455, PETRI_PLACES=145, PETRI_TRANSITIONS=132} [2022-12-13 18:00:08,004 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 0 predicate places. [2022-12-13 18:00:08,004 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 132 transitions, 455 flow [2022-12-13 18:00:08,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 431.1666666666667) internal successors, (2587), 6 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:08,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:08,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:08,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 18:00:08,005 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:08,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:08,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1923864173, now seen corresponding path program 1 times [2022-12-13 18:00:08,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:08,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110052948] [2022-12-13 18:00:08,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:08,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:08,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:08,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110052948] [2022-12-13 18:00:08,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110052948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:08,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:08,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:00:08,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94439513] [2022-12-13 18:00:08,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:08,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:08,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:08,651 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 888 [2022-12-13 18:00:08,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 132 transitions, 455 flow. Second operand has 6 states, 6 states have (on average 437.8333333333333) internal successors, (2627), 6 states have internal predecessors, (2627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:08,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:08,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 888 [2022-12-13 18:00:08,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:09,097 INFO L130 PetriNetUnfolder]: 1257/3573 cut-off events. [2022-12-13 18:00:09,097 INFO L131 PetriNetUnfolder]: For 3098/3120 co-relation queries the response was YES. [2022-12-13 18:00:09,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8147 conditions, 3573 events. 1257/3573 cut-off events. For 3098/3120 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 26602 event pairs, 822 based on Foata normal form. 0/3417 useless extension candidates. Maximal degree in co-relation 8128. Up to 1764 conditions per place. [2022-12-13 18:00:09,107 INFO L137 encePairwiseOnDemand]: 883/888 looper letters, 91 selfloop transitions, 4 changer transitions 64/227 dead transitions. [2022-12-13 18:00:09,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 227 transitions, 1263 flow [2022-12-13 18:00:09,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:09,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2712 transitions. [2022-12-13 18:00:09,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.509009009009009 [2022-12-13 18:00:09,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2712 transitions. [2022-12-13 18:00:09,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2712 transitions. [2022-12-13 18:00:09,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:09,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2712 transitions. [2022-12-13 18:00:09,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 452.0) internal successors, (2712), 6 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,117 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,117 INFO L175 Difference]: Start difference. First operand has 145 places, 132 transitions, 455 flow. Second operand 6 states and 2712 transitions. [2022-12-13 18:00:09,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 227 transitions, 1263 flow [2022-12-13 18:00:09,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 227 transitions, 1245 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 18:00:09,126 INFO L231 Difference]: Finished difference. Result has 144 places, 115 transitions, 320 flow [2022-12-13 18:00:09,126 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=144, PETRI_TRANSITIONS=115} [2022-12-13 18:00:09,126 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -1 predicate places. [2022-12-13 18:00:09,126 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 115 transitions, 320 flow [2022-12-13 18:00:09,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.8333333333333) internal successors, (2627), 6 states have internal predecessors, (2627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,127 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:09,127 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:09,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 18:00:09,127 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:09,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:09,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1334929417, now seen corresponding path program 1 times [2022-12-13 18:00:09,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:09,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409377857] [2022-12-13 18:00:09,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:09,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:00:09,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:09,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409377857] [2022-12-13 18:00:09,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409377857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:09,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:09,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:00:09,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272508517] [2022-12-13 18:00:09,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:09,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:00:09,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:00:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:09,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 888 [2022-12-13 18:00:09,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 115 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 443.3333333333333) internal successors, (1330), 3 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:09,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 888 [2022-12-13 18:00:09,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:09,484 INFO L130 PetriNetUnfolder]: 1087/3177 cut-off events. [2022-12-13 18:00:09,485 INFO L131 PetriNetUnfolder]: For 1581/1590 co-relation queries the response was YES. [2022-12-13 18:00:09,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6328 conditions, 3177 events. 1087/3177 cut-off events. For 1581/1590 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 23445 event pairs, 269 based on Foata normal form. 0/3032 useless extension candidates. Maximal degree in co-relation 6309. Up to 1300 conditions per place. [2022-12-13 18:00:09,495 INFO L137 encePairwiseOnDemand]: 882/888 looper letters, 70 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2022-12-13 18:00:09,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 135 transitions, 558 flow [2022-12-13 18:00:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:00:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2022-12-13 18:00:09,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5198948948948949 [2022-12-13 18:00:09,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2022-12-13 18:00:09,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2022-12-13 18:00:09,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:09,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2022-12-13 18:00:09,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 888.0) internal successors, (3552), 4 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,501 INFO L175 Difference]: Start difference. First operand has 144 places, 115 transitions, 320 flow. Second operand 3 states and 1385 transitions. [2022-12-13 18:00:09,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 135 transitions, 558 flow [2022-12-13 18:00:09,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 135 transitions, 485 flow, removed 32 selfloop flow, removed 14 redundant places. [2022-12-13 18:00:09,504 INFO L231 Difference]: Finished difference. Result has 119 places, 113 transitions, 285 flow [2022-12-13 18:00:09,504 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=119, PETRI_TRANSITIONS=113} [2022-12-13 18:00:09,505 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -26 predicate places. [2022-12-13 18:00:09,505 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 113 transitions, 285 flow [2022-12-13 18:00:09,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 443.3333333333333) internal successors, (1330), 3 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:09,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:09,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 18:00:09,505 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:09,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1027328211, now seen corresponding path program 1 times [2022-12-13 18:00:09,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:09,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159479678] [2022-12-13 18:00:09,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:09,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:00:09,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:09,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159479678] [2022-12-13 18:00:09,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159479678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:09,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:09,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:00:09,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382162440] [2022-12-13 18:00:09,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:09,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:09,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:09,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:09,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:10,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 888 [2022-12-13 18:00:10,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 113 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 430.6666666666667) internal successors, (2584), 6 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:10,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:10,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 888 [2022-12-13 18:00:10,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:10,528 INFO L130 PetriNetUnfolder]: 1279/3382 cut-off events. [2022-12-13 18:00:10,529 INFO L131 PetriNetUnfolder]: For 521/530 co-relation queries the response was YES. [2022-12-13 18:00:10,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6218 conditions, 3382 events. 1279/3382 cut-off events. For 521/530 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 24024 event pairs, 517 based on Foata normal form. 0/3241 useless extension candidates. Maximal degree in co-relation 6209. Up to 1144 conditions per place. [2022-12-13 18:00:10,537 INFO L137 encePairwiseOnDemand]: 881/888 looper letters, 124 selfloop transitions, 5 changer transitions 0/189 dead transitions. [2022-12-13 18:00:10,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 189 transitions, 740 flow [2022-12-13 18:00:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:10,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2689 transitions. [2022-12-13 18:00:10,541 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5046921921921922 [2022-12-13 18:00:10,541 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2689 transitions. [2022-12-13 18:00:10,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2689 transitions. [2022-12-13 18:00:10,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:10,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2689 transitions. [2022-12-13 18:00:10,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 448.1666666666667) internal successors, (2689), 6 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:10,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:10,547 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:10,547 INFO L175 Difference]: Start difference. First operand has 119 places, 113 transitions, 285 flow. Second operand 6 states and 2689 transitions. [2022-12-13 18:00:10,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 189 transitions, 740 flow [2022-12-13 18:00:10,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 189 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:00:10,549 INFO L231 Difference]: Finished difference. Result has 122 places, 111 transitions, 291 flow [2022-12-13 18:00:10,549 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=122, PETRI_TRANSITIONS=111} [2022-12-13 18:00:10,550 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -23 predicate places. [2022-12-13 18:00:10,550 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 111 transitions, 291 flow [2022-12-13 18:00:10,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 430.6666666666667) internal successors, (2584), 6 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:10,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:10,550 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:10,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 18:00:10,550 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-12-13 18:00:10,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash -725299789, now seen corresponding path program 1 times [2022-12-13 18:00:10,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:10,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902093648] [2022-12-13 18:00:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:10,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:00:10,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:10,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902093648] [2022-12-13 18:00:10,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902093648] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:10,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:10,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:00:10,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745532992] [2022-12-13 18:00:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:10,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:10,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:10,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:10,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:11,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 888 [2022-12-13 18:00:11,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 111 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 431.3333333333333) internal successors, (2588), 6 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:11,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:11,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 888 [2022-12-13 18:00:11,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:11,652 INFO L130 PetriNetUnfolder]: 1266/3262 cut-off events. [2022-12-13 18:00:11,652 INFO L131 PetriNetUnfolder]: For 589/598 co-relation queries the response was YES. [2022-12-13 18:00:11,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6226 conditions, 3262 events. 1266/3262 cut-off events. For 589/598 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 22950 event pairs, 532 based on Foata normal form. 0/3161 useless extension candidates. Maximal degree in co-relation 6216. Up to 1137 conditions per place. [2022-12-13 18:00:11,656 INFO L137 encePairwiseOnDemand]: 881/888 looper letters, 0 selfloop transitions, 0 changer transitions 169/169 dead transitions. [2022-12-13 18:00:11,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 169 transitions, 683 flow [2022-12-13 18:00:11,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:11,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:11,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2672 transitions. [2022-12-13 18:00:11,659 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5015015015015015 [2022-12-13 18:00:11,659 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2672 transitions. [2022-12-13 18:00:11,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2672 transitions. [2022-12-13 18:00:11,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:11,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2672 transitions. [2022-12-13 18:00:11,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 445.3333333333333) internal successors, (2672), 6 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:11,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:11,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 888.0) internal successors, (6216), 7 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:11,665 INFO L175 Difference]: Start difference. First operand has 122 places, 111 transitions, 291 flow. Second operand 6 states and 2672 transitions. [2022-12-13 18:00:11,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 169 transitions, 683 flow [2022-12-13 18:00:11,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 169 transitions, 665 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 18:00:11,667 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2022-12-13 18:00:11,667 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=888, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2022-12-13 18:00:11,667 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -25 predicate places. [2022-12-13 18:00:11,667 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2022-12-13 18:00:11,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 431.3333333333333) internal successors, (2588), 6 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:11,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2022-12-13 18:00:11,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2022-12-13 18:00:11,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2022-12-13 18:00:11,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2022-12-13 18:00:11,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2022-12-13 18:00:11,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2022-12-13 18:00:11,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2022-12-13 18:00:11,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2022-12-13 18:00:11,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2022-12-13 18:00:11,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2022-12-13 18:00:11,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2022-12-13 18:00:11,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2022-12-13 18:00:11,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2022-12-13 18:00:11,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (31 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 74 remaining) [2022-12-13 18:00:11,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (27 of 74 remaining) [2022-12-13 18:00:11,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2022-12-13 18:00:11,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2022-12-13 18:00:11,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2022-12-13 18:00:11,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2022-12-13 18:00:11,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2022-12-13 18:00:11,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2022-12-13 18:00:11,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2022-12-13 18:00:11,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2022-12-13 18:00:11,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2022-12-13 18:00:11,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2022-12-13 18:00:11,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2022-12-13 18:00:11,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2022-12-13 18:00:11,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2022-12-13 18:00:11,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2022-12-13 18:00:11,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2022-12-13 18:00:11,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2022-12-13 18:00:11,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2022-12-13 18:00:11,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2022-12-13 18:00:11,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2022-12-13 18:00:11,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 18:00:11,679 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:11,684 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:00:11,685 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:00:11,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:00:11 BasicIcfg [2022-12-13 18:00:11,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:00:11,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:00:11,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:00:11,689 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:00:11,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:51" (3/4) ... [2022-12-13 18:00:11,691 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:00:11,697 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 18:00:11,697 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 18:00:11,701 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-12-13 18:00:11,702 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 18:00:11,702 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:00:11,702 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:00:11,744 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:00:11,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:00:11,744 INFO L158 Benchmark]: Toolchain (without parser) took 21705.61ms. Allocated memory was 127.9MB in the beginning and 448.8MB in the end (delta: 320.9MB). Free memory was 74.2MB in the beginning and 272.8MB in the end (delta: -198.6MB). Peak memory consumption was 123.0MB. Max. memory is 16.1GB. [2022-12-13 18:00:11,745 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 98.0MB in the beginning and 97.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:00:11,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.85ms. Allocated memory is still 127.9MB. Free memory was 74.0MB in the beginning and 61.2MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:00:11,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.30ms. Allocated memory is still 127.9MB. Free memory was 61.2MB in the beginning and 57.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:00:11,746 INFO L158 Benchmark]: Boogie Preprocessor took 32.62ms. Allocated memory is still 127.9MB. Free memory was 57.7MB in the beginning and 54.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:00:11,746 INFO L158 Benchmark]: RCFGBuilder took 679.54ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 54.7MB in the beginning and 105.5MB in the end (delta: -50.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-12-13 18:00:11,746 INFO L158 Benchmark]: TraceAbstraction took 20664.15ms. Allocated memory was 163.6MB in the beginning and 448.8MB in the end (delta: 285.2MB). Free memory was 104.7MB in the beginning and 277.0MB in the end (delta: -172.3MB). Peak memory consumption was 329.7MB. Max. memory is 16.1GB. [2022-12-13 18:00:11,746 INFO L158 Benchmark]: Witness Printer took 55.61ms. Allocated memory is still 448.8MB. Free memory was 277.0MB in the beginning and 272.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:00:11,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory was 98.0MB in the beginning and 97.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.85ms. Allocated memory is still 127.9MB. Free memory was 74.0MB in the beginning and 61.2MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.30ms. Allocated memory is still 127.9MB. Free memory was 61.2MB in the beginning and 57.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.62ms. Allocated memory is still 127.9MB. Free memory was 57.7MB in the beginning and 54.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 679.54ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 54.7MB in the beginning and 105.5MB in the end (delta: -50.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 20664.15ms. Allocated memory was 163.6MB in the beginning and 448.8MB in the end (delta: 285.2MB). Free memory was 104.7MB in the beginning and 277.0MB in the end (delta: -172.3MB). Peak memory consumption was 329.7MB. Max. memory is 16.1GB. * Witness Printer took 55.61ms. Allocated memory is still 448.8MB. Free memory was 277.0MB in the beginning and 272.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 432 PlacesBefore, 145 PlacesAfterwards, 449 TransitionsBefore, 148 TransitionsAfterwards, 33516 CoEnabledTransitionPairs, 8 FixpointIterations, 203 TrivialSequentialCompositions, 142 ConcurrentSequentialCompositions, 30 TrivialYvCompositions, 27 ConcurrentYvCompositions, 14 ChoiceCompositions, 416 TotalNumberOfCompositions, 180167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50771, independent: 48816, independent conditional: 0, independent unconditional: 48816, dependent: 1955, dependent conditional: 0, dependent unconditional: 1955, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 17167, independent: 16901, independent conditional: 0, independent unconditional: 16901, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 50771, independent: 31915, independent conditional: 0, independent unconditional: 31915, dependent: 1689, dependent conditional: 0, dependent unconditional: 1689, unknown: 17167, unknown conditional: 0, unknown unconditional: 17167] , Statistics on independence cache: Total cache size (in pairs): 2137, Positive cache size: 2010, Positive conditional cache size: 0, Positive unconditional cache size: 2010, Negative cache size: 127, Negative conditional cache size: 0, Negative unconditional cache size: 127, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: 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: 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: 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: 52]: 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: 63]: 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: 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: 65]: 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: 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: 66]: 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: 66]: 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: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: 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, 667 locations, 74 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: 20.5s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3980 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2510 mSDsluCounter, 822 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 625 mSDsCounter, 1112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7035 IncrementalHoareTripleChecker+Invalid, 8147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1112 mSolverCounterUnsat, 197 mSDtfsCounter, 7035 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=456occurred in iteration=12, InterpolantAutomatonStates: 78, 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, 1.9s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 1133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 12/12 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 44 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 18:00:11,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8886313-86f3-4f7e-a38d-ca1f65d1c421/bin/uautomizer-uyxdKDjOR8/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