./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro --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 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb --- 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-8393723 [2022-11-18 20:41:26,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:41:26,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:41:26,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:41:26,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:41:26,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:41:26,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:41:26,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:41:26,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:41:26,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:41:26,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:41:26,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:41:26,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:41:26,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:41:26,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:41:26,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:41:26,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:41:26,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:41:26,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:41:26,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:41:26,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:41:26,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:41:26,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:41:26,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:41:26,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:41:26,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:41:26,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:41:26,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:41:26,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:41:26,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:41:26,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:41:26,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:41:26,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:41:26,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:41:26,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:41:26,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:41:26,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:41:26,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:41:26,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:41:26,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:41:26,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:41:26,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:41:26,653 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:41:26,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:41:26,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:41:26,655 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:41:26,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:41:26,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:41:26,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:41:26,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:41:26,658 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:41:26,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:41:26,659 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:41:26,660 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:41:26,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:41:26,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:41:26,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:41:26,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:41:26,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:41:26,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:41:26,662 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:41:26,662 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:41:26,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:41:26,662 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:41:26,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:41:26,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:41:26,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:41:26,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:41:26,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:41:26,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:41:26,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:41:26,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:41:26,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:41:26,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:41:26,667 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:41:26,667 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:41:26,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:41:26,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb [2022-11-18 20:41:27,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:41:27,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:41:27,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:41:27,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:41:27,080 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:41:27,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-18 20:41:27,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/data/4c37a9ea0/f7831c55399a4a82b4b14b0fe2c40a70/FLAG545b876d6 [2022-11-18 20:41:27,869 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:41:27,873 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-18 20:41:27,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/data/4c37a9ea0/f7831c55399a4a82b4b14b0fe2c40a70/FLAG545b876d6 [2022-11-18 20:41:28,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/data/4c37a9ea0/f7831c55399a4a82b4b14b0fe2c40a70 [2022-11-18 20:41:28,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:41:28,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:41:28,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:41:28,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:41:28,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:41:28,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:28,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e542ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28, skipping insertion in model container [2022-11-18 20:41:28,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:28,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:41:28,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:41:28,685 WARN L234 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_d082371e-7341-4efc-b20d-3d0fb50023a2/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-18 20:41:28,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:41:28,725 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:41:28,859 WARN L234 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_d082371e-7341-4efc-b20d-3d0fb50023a2/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-18 20:41:28,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:41:28,889 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:41:28,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28 WrapperNode [2022-11-18 20:41:28,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:41:28,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:41:28,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:41:28,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:41:28,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:28,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,046 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1309 [2022-11-18 20:41:29,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:41:29,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:41:29,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:41:29,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:41:29,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,182 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:41:29,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:41:29,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:41:29,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:41:29,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (1/1) ... [2022-11-18 20:41:29,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:41:29,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:41:29,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:41:29,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d082371e-7341-4efc-b20d-3d0fb50023a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:41:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:41:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:41:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:41:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:41:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:41:29,308 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:41:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:41:29,308 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:41:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:41:29,309 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:41:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:41:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:41:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:41:29,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:41:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:41:29,312 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:41:29,652 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:41:29,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:41:32,002 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:41:32,043 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:41:32,043 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:41:32,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:41:32 BoogieIcfgContainer [2022-11-18 20:41:32,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:41:32,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:41:32,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:41:32,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:41:32,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:41:28" (1/3) ... [2022-11-18 20:41:32,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706be4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:41:32, skipping insertion in model container [2022-11-18 20:41:32,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:41:28" (2/3) ... [2022-11-18 20:41:32,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706be4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:41:32, skipping insertion in model container [2022-11-18 20:41:32,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:41:32" (3/3) ... [2022-11-18 20:41:32,069 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2022-11-18 20:41:32,081 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:41:32,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:41:32,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 230 error locations. [2022-11-18 20:41:32,096 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:41:32,471 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:41:32,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1662 places, 1763 transitions, 3550 flow [2022-11-18 20:41:35,046 INFO L130 PetriNetUnfolder]: 111/1760 cut-off events. [2022-11-18 20:41:35,046 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:41:35,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1773 conditions, 1760 events. 111/1760 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7856 event pairs, 0 based on Foata normal form. 0/1419 useless extension candidates. Maximal degree in co-relation 1382. Up to 2 conditions per place. [2022-11-18 20:41:35,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 1662 places, 1763 transitions, 3550 flow [2022-11-18 20:41:35,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1636 places, 1734 transitions, 3486 flow [2022-11-18 20:41:35,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:41:35,422 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;@45b7cff1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:41:35,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2022-11-18 20:41:35,439 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-18 20:41:35,440 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:41:35,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:35,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:35,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:41:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:35,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1047814016, now seen corresponding path program 1 times [2022-11-18 20:41:35,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:35,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653370584] [2022-11-18 20:41:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:35,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:35,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:41:35,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:35,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653370584] [2022-11-18 20:41:35,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653370584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:35,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:35,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:35,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507671879] [2022-11-18 20:41:35,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:35,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:35,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:35,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:35,907 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-18 20:41:35,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1636 places, 1734 transitions, 3486 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:35,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:35,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-18 20:41:35,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:39,654 INFO L130 PetriNetUnfolder]: 208/3994 cut-off events. [2022-11-18 20:41:39,654 INFO L131 PetriNetUnfolder]: For 56/58 co-relation queries the response was YES. [2022-11-18 20:41:39,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4143 conditions, 3994 events. 208/3994 cut-off events. For 56/58 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 27912 event pairs, 39 based on Foata normal form. 178/3377 useless extension candidates. Maximal degree in co-relation 3698. Up to 90 conditions per place. [2022-11-18 20:41:39,940 INFO L137 encePairwiseOnDemand]: 1724/1763 looper letters, 15 selfloop transitions, 2 changer transitions 6/1697 dead transitions. [2022-11-18 20:41:39,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1637 places, 1697 transitions, 3446 flow [2022-11-18 20:41:39,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:39,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5175 transitions. [2022-11-18 20:41:39,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9784458309699376 [2022-11-18 20:41:39,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5175 transitions. [2022-11-18 20:41:39,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5175 transitions. [2022-11-18 20:41:39,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:40,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5175 transitions. [2022-11-18 20:41:40,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1725.0) internal successors, (5175), 3 states have internal predecessors, (5175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:40,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:40,055 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:40,058 INFO L175 Difference]: Start difference. First operand has 1636 places, 1734 transitions, 3486 flow. Second operand 3 states and 5175 transitions. [2022-11-18 20:41:40,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1637 places, 1697 transitions, 3446 flow [2022-11-18 20:41:40,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1631 places, 1697 transitions, 3434 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:41:40,327 INFO L231 Difference]: Finished difference. Result has 1631 places, 1691 transitions, 3392 flow [2022-11-18 20:41:40,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3400, PETRI_DIFFERENCE_MINUEND_PLACES=1629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3392, PETRI_PLACES=1631, PETRI_TRANSITIONS=1691} [2022-11-18 20:41:40,337 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -5 predicate places. [2022-11-18 20:41:40,338 INFO L495 AbstractCegarLoop]: Abstraction has has 1631 places, 1691 transitions, 3392 flow [2022-11-18 20:41:40,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:40,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:40,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:40,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:41:40,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:41:40,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:40,345 INFO L85 PathProgramCache]: Analyzing trace with hash 778803614, now seen corresponding path program 1 times [2022-11-18 20:41:40,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:40,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855316862] [2022-11-18 20:41:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:40,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:41:40,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:40,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855316862] [2022-11-18 20:41:40,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855316862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:40,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:40,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560507103] [2022-11-18 20:41:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:40,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:40,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:40,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:40,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:40,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-18 20:41:40,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1631 places, 1691 transitions, 3392 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:40,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:40,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-18 20:41:40,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:44,615 INFO L130 PetriNetUnfolder]: 208/4031 cut-off events. [2022-11-18 20:41:44,617 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-18 20:41:44,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4148 conditions, 4031 events. 208/4031 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 29574 event pairs, 39 based on Foata normal form. 0/3243 useless extension candidates. Maximal degree in co-relation 4099. Up to 90 conditions per place. [2022-11-18 20:41:44,982 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1690 dead transitions. [2022-11-18 20:41:44,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1626 places, 1690 transitions, 3424 flow [2022-11-18 20:41:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:44,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-18 20:41:44,997 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-18 20:41:44,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-18 20:41:44,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-18 20:41:45,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:45,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-18 20:41:45,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:45,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:45,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:45,041 INFO L175 Difference]: Start difference. First operand has 1631 places, 1691 transitions, 3392 flow. Second operand 3 states and 5139 transitions. [2022-11-18 20:41:45,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1626 places, 1690 transitions, 3424 flow [2022-11-18 20:41:45,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1624 places, 1690 transitions, 3420 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:45,078 INFO L231 Difference]: Finished difference. Result has 1624 places, 1690 transitions, 3390 flow [2022-11-18 20:41:45,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3386, PETRI_DIFFERENCE_MINUEND_PLACES=1622, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1688, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3390, PETRI_PLACES=1624, PETRI_TRANSITIONS=1690} [2022-11-18 20:41:45,082 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -12 predicate places. [2022-11-18 20:41:45,082 INFO L495 AbstractCegarLoop]: Abstraction has has 1624 places, 1690 transitions, 3390 flow [2022-11-18 20:41:45,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:45,087 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:45,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:45,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:41:45,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:41:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1303487019, now seen corresponding path program 1 times [2022-11-18 20:41:45,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:45,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96170549] [2022-11-18 20:41:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:45,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:41:45,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:45,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96170549] [2022-11-18 20:41:45,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96170549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:45,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:45,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:45,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27547849] [2022-11-18 20:41:45,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:45,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:45,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:45,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:45,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:45,256 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-18 20:41:45,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1624 places, 1690 transitions, 3390 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:45,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:45,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-18 20:41:45,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:48,094 INFO L130 PetriNetUnfolder]: 144/2904 cut-off events. [2022-11-18 20:41:48,094 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-18 20:41:48,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2982 conditions, 2904 events. 144/2904 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 17970 event pairs, 21 based on Foata normal form. 0/2341 useless extension candidates. Maximal degree in co-relation 2926. Up to 63 conditions per place. [2022-11-18 20:41:48,350 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1689 dead transitions. [2022-11-18 20:41:48,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1625 places, 1689 transitions, 3422 flow [2022-11-18 20:41:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:48,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:48,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-18 20:41:48,366 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-18 20:41:48,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-18 20:41:48,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-18 20:41:48,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:48,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-18 20:41:48,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:48,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:48,583 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:48,583 INFO L175 Difference]: Start difference. First operand has 1624 places, 1690 transitions, 3390 flow. Second operand 3 states and 5139 transitions. [2022-11-18 20:41:48,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1625 places, 1689 transitions, 3422 flow [2022-11-18 20:41:48,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1623 places, 1689 transitions, 3418 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:48,617 INFO L231 Difference]: Finished difference. Result has 1623 places, 1689 transitions, 3388 flow [2022-11-18 20:41:48,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3384, PETRI_DIFFERENCE_MINUEND_PLACES=1621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1687, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3388, PETRI_PLACES=1623, PETRI_TRANSITIONS=1689} [2022-11-18 20:41:48,624 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -13 predicate places. [2022-11-18 20:41:48,624 INFO L495 AbstractCegarLoop]: Abstraction has has 1623 places, 1689 transitions, 3388 flow [2022-11-18 20:41:48,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:48,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:48,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:48,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:41:48,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:41:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:48,629 INFO L85 PathProgramCache]: Analyzing trace with hash -2017649280, now seen corresponding path program 1 times [2022-11-18 20:41:48,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:48,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794978442] [2022-11-18 20:41:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:48,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:48,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:41:48,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:48,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794978442] [2022-11-18 20:41:48,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794978442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:48,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:48,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:48,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273460757] [2022-11-18 20:41:48,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:48,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:48,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:48,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:48,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:48,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-18 20:41:48,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1623 places, 1689 transitions, 3388 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:48,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:48,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-18 20:41:48,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:50,779 INFO L130 PetriNetUnfolder]: 144/2931 cut-off events. [2022-11-18 20:41:50,779 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-18 20:41:50,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3009 conditions, 2931 events. 144/2931 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 18816 event pairs, 21 based on Foata normal form. 0/2369 useless extension candidates. Maximal degree in co-relation 2946. Up to 63 conditions per place. [2022-11-18 20:41:50,958 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1688 dead transitions. [2022-11-18 20:41:50,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1624 places, 1688 transitions, 3420 flow [2022-11-18 20:41:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:50,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:50,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-18 20:41:50,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-18 20:41:50,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-18 20:41:50,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-18 20:41:50,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:50,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-18 20:41:50,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:51,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:51,009 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:51,009 INFO L175 Difference]: Start difference. First operand has 1623 places, 1689 transitions, 3388 flow. Second operand 3 states and 5139 transitions. [2022-11-18 20:41:51,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1624 places, 1688 transitions, 3420 flow [2022-11-18 20:41:51,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1622 places, 1688 transitions, 3416 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:51,044 INFO L231 Difference]: Finished difference. Result has 1622 places, 1688 transitions, 3386 flow [2022-11-18 20:41:51,047 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3382, PETRI_DIFFERENCE_MINUEND_PLACES=1620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3386, PETRI_PLACES=1622, PETRI_TRANSITIONS=1688} [2022-11-18 20:41:51,049 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -14 predicate places. [2022-11-18 20:41:51,049 INFO L495 AbstractCegarLoop]: Abstraction has has 1622 places, 1688 transitions, 3386 flow [2022-11-18 20:41:51,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:51,052 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:51,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:51,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:41:51,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:41:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:51,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1812316581, now seen corresponding path program 1 times [2022-11-18 20:41:51,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:51,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783799892] [2022-11-18 20:41:51,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:51,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:41:51,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:51,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783799892] [2022-11-18 20:41:51,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783799892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:51,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:51,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:51,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363352595] [2022-11-18 20:41:51,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:51,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:51,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:51,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:51,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:51,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-18 20:41:51,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1622 places, 1688 transitions, 3386 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:51,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:51,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-18 20:41:51,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:53,733 INFO L130 PetriNetUnfolder]: 139/2626 cut-off events. [2022-11-18 20:41:53,733 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-18 20:41:53,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 2626 events. 139/2626 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 15985 event pairs, 39 based on Foata normal form. 0/2143 useless extension candidates. Maximal degree in co-relation 2658. Up to 90 conditions per place. [2022-11-18 20:41:54,004 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1687 dead transitions. [2022-11-18 20:41:54,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1623 places, 1687 transitions, 3418 flow [2022-11-18 20:41:54,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:54,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-18 20:41:54,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-18 20:41:54,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-18 20:41:54,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-18 20:41:54,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:54,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-18 20:41:54,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:54,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:54,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:54,054 INFO L175 Difference]: Start difference. First operand has 1622 places, 1688 transitions, 3386 flow. Second operand 3 states and 5139 transitions. [2022-11-18 20:41:54,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1623 places, 1687 transitions, 3418 flow [2022-11-18 20:41:54,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1621 places, 1687 transitions, 3414 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:54,091 INFO L231 Difference]: Finished difference. Result has 1621 places, 1687 transitions, 3384 flow [2022-11-18 20:41:54,094 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3380, PETRI_DIFFERENCE_MINUEND_PLACES=1619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3384, PETRI_PLACES=1621, PETRI_TRANSITIONS=1687} [2022-11-18 20:41:54,095 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -15 predicate places. [2022-11-18 20:41:54,095 INFO L495 AbstractCegarLoop]: Abstraction has has 1621 places, 1687 transitions, 3384 flow [2022-11-18 20:41:54,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:54,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:54,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:54,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:41:54,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:41:54,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:54,100 INFO L85 PathProgramCache]: Analyzing trace with hash -539627599, now seen corresponding path program 1 times [2022-11-18 20:41:54,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:54,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576764616] [2022-11-18 20:41:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:54,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:54,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:41:54,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:54,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576764616] [2022-11-18 20:41:54,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576764616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:54,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:54,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:54,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709137631] [2022-11-18 20:41:54,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:54,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:54,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:54,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:54,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:54,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-18 20:41:54,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1621 places, 1687 transitions, 3384 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:54,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:54,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-18 20:41:54,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:41:56,421 INFO L130 PetriNetUnfolder]: 139/2669 cut-off events. [2022-11-18 20:41:56,422 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-18 20:41:56,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 2669 events. 139/2669 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16871 event pairs, 39 based on Foata normal form. 0/2191 useless extension candidates. Maximal degree in co-relation 2694. Up to 90 conditions per place. [2022-11-18 20:41:56,631 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1686 dead transitions. [2022-11-18 20:41:56,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1622 places, 1686 transitions, 3416 flow [2022-11-18 20:41:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:41:56,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:41:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-18 20:41:56,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-18 20:41:56,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-18 20:41:56,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-18 20:41:56,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:41:56,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-18 20:41:56,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:56,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:56,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:56,677 INFO L175 Difference]: Start difference. First operand has 1621 places, 1687 transitions, 3384 flow. Second operand 3 states and 5139 transitions. [2022-11-18 20:41:56,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1622 places, 1686 transitions, 3416 flow [2022-11-18 20:41:56,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1620 places, 1686 transitions, 3412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:41:56,712 INFO L231 Difference]: Finished difference. Result has 1620 places, 1686 transitions, 3382 flow [2022-11-18 20:41:56,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3378, PETRI_DIFFERENCE_MINUEND_PLACES=1618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3382, PETRI_PLACES=1620, PETRI_TRANSITIONS=1686} [2022-11-18 20:41:56,716 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -16 predicate places. [2022-11-18 20:41:56,717 INFO L495 AbstractCegarLoop]: Abstraction has has 1620 places, 1686 transitions, 3382 flow [2022-11-18 20:41:56,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:56,719 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:41:56,720 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:41:56,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:41:56,720 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:41:56,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:41:56,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1084249305, now seen corresponding path program 1 times [2022-11-18 20:41:56,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:41:56,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750187357] [2022-11-18 20:41:56,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:41:56,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:41:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:41:56,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:41:56,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:41:56,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750187357] [2022-11-18 20:41:56,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750187357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:41:56,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:41:56,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:41:56,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107133274] [2022-11-18 20:41:56,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:41:56,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:41:56,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:41:56,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:41:56,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:41:56,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1763 [2022-11-18 20:41:56,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1620 places, 1686 transitions, 3382 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:41:56,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:41:56,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1763 [2022-11-18 20:41:56,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:01,712 INFO L130 PetriNetUnfolder]: 348/5997 cut-off events. [2022-11-18 20:42:01,712 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:42:02,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6214 conditions, 5997 events. 348/5997 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 49333 event pairs, 54 based on Foata normal form. 0/4735 useless extension candidates. Maximal degree in co-relation 6130. Up to 154 conditions per place. [2022-11-18 20:42:02,548 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 39 selfloop transitions, 2 changer transitions 0/1685 dead transitions. [2022-11-18 20:42:02,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1621 places, 1685 transitions, 3462 flow [2022-11-18 20:42:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:02,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5091 transitions. [2022-11-18 20:42:02,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9625638116846285 [2022-11-18 20:42:02,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5091 transitions. [2022-11-18 20:42:02,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5091 transitions. [2022-11-18 20:42:02,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:02,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5091 transitions. [2022-11-18 20:42:02,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1697.0) internal successors, (5091), 3 states have internal predecessors, (5091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:02,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:02,593 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:02,593 INFO L175 Difference]: Start difference. First operand has 1620 places, 1686 transitions, 3382 flow. Second operand 3 states and 5091 transitions. [2022-11-18 20:42:02,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1621 places, 1685 transitions, 3462 flow [2022-11-18 20:42:02,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1619 places, 1685 transitions, 3458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:02,630 INFO L231 Difference]: Finished difference. Result has 1619 places, 1685 transitions, 3380 flow [2022-11-18 20:42:02,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=1617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3380, PETRI_PLACES=1619, PETRI_TRANSITIONS=1685} [2022-11-18 20:42:02,634 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -17 predicate places. [2022-11-18 20:42:02,635 INFO L495 AbstractCegarLoop]: Abstraction has has 1619 places, 1685 transitions, 3380 flow [2022-11-18 20:42:02,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:02,638 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:02,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:02,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:42:02,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:42:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:02,640 INFO L85 PathProgramCache]: Analyzing trace with hash 529616395, now seen corresponding path program 1 times [2022-11-18 20:42:02,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:02,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994861105] [2022-11-18 20:42:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:02,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:02,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:02,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994861105] [2022-11-18 20:42:02,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994861105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:02,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:02,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:02,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288057229] [2022-11-18 20:42:02,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:02,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:02,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:02,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:02,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:02,740 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-18 20:42:02,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1619 places, 1685 transitions, 3380 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:02,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:02,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-18 20:42:02,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:05,838 INFO L130 PetriNetUnfolder]: 241/3335 cut-off events. [2022-11-18 20:42:05,838 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-18 20:42:06,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3670 conditions, 3335 events. 241/3335 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 23143 event pairs, 90 based on Foata normal form. 0/2669 useless extension candidates. Maximal degree in co-relation 3579. Up to 236 conditions per place. [2022-11-18 20:42:06,098 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1684 dead transitions. [2022-11-18 20:42:06,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1620 places, 1684 transitions, 3490 flow [2022-11-18 20:42:06,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:06,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:06,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-18 20:42:06,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-18 20:42:06,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-18 20:42:06,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-18 20:42:06,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:06,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-18 20:42:06,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:06,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:06,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:06,151 INFO L175 Difference]: Start difference. First operand has 1619 places, 1685 transitions, 3380 flow. Second operand 3 states and 5061 transitions. [2022-11-18 20:42:06,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1620 places, 1684 transitions, 3490 flow [2022-11-18 20:42:06,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1618 places, 1684 transitions, 3486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:06,197 INFO L231 Difference]: Finished difference. Result has 1618 places, 1684 transitions, 3378 flow [2022-11-18 20:42:06,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3374, PETRI_DIFFERENCE_MINUEND_PLACES=1616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3378, PETRI_PLACES=1618, PETRI_TRANSITIONS=1684} [2022-11-18 20:42:06,201 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -18 predicate places. [2022-11-18 20:42:06,201 INFO L495 AbstractCegarLoop]: Abstraction has has 1618 places, 1684 transitions, 3378 flow [2022-11-18 20:42:06,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:06,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:06,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:06,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:42:06,206 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:42:06,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:06,206 INFO L85 PathProgramCache]: Analyzing trace with hash -751215524, now seen corresponding path program 1 times [2022-11-18 20:42:06,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:06,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116608896] [2022-11-18 20:42:06,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:06,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:06,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116608896] [2022-11-18 20:42:06,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116608896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:06,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:06,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124292240] [2022-11-18 20:42:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:06,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:06,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:06,315 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1680 out of 1763 [2022-11-18 20:42:06,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1618 places, 1684 transitions, 3378 flow. Second operand has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:06,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:06,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1680 of 1763 [2022-11-18 20:42:06,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:10,734 INFO L130 PetriNetUnfolder]: 256/4239 cut-off events. [2022-11-18 20:42:10,735 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-18 20:42:11,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4432 conditions, 4239 events. 256/4239 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 31322 event pairs, 54 based on Foata normal form. 0/3362 useless extension candidates. Maximal degree in co-relation 4334. Up to 157 conditions per place. [2022-11-18 20:42:11,415 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 42 selfloop transitions, 2 changer transitions 0/1683 dead transitions. [2022-11-18 20:42:11,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1619 places, 1683 transitions, 3464 flow [2022-11-18 20:42:11,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:11,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-18 20:42:11,423 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9614293817356778 [2022-11-18 20:42:11,423 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-18 20:42:11,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-18 20:42:11,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:11,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-18 20:42:11,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:11,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:11,445 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:11,446 INFO L175 Difference]: Start difference. First operand has 1618 places, 1684 transitions, 3378 flow. Second operand 3 states and 5085 transitions. [2022-11-18 20:42:11,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1619 places, 1683 transitions, 3464 flow [2022-11-18 20:42:11,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1617 places, 1683 transitions, 3460 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:11,480 INFO L231 Difference]: Finished difference. Result has 1617 places, 1683 transitions, 3376 flow [2022-11-18 20:42:11,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3372, PETRI_DIFFERENCE_MINUEND_PLACES=1615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3376, PETRI_PLACES=1617, PETRI_TRANSITIONS=1683} [2022-11-18 20:42:11,484 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -19 predicate places. [2022-11-18 20:42:11,484 INFO L495 AbstractCegarLoop]: Abstraction has has 1617 places, 1683 transitions, 3376 flow [2022-11-18 20:42:11,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:11,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:11,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:11,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:42:11,487 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:42:11,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:11,487 INFO L85 PathProgramCache]: Analyzing trace with hash -455381269, now seen corresponding path program 1 times [2022-11-18 20:42:11,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:11,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353812869] [2022-11-18 20:42:11,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:11,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:11,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:11,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:11,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353812869] [2022-11-18 20:42:11,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353812869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:11,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:11,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:11,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272912100] [2022-11-18 20:42:11,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:11,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:11,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:11,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:11,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:11,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-18 20:42:11,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1617 places, 1683 transitions, 3376 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:11,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:11,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-18 20:42:11,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:14,954 INFO L130 PetriNetUnfolder]: 218/2894 cut-off events. [2022-11-18 20:42:14,954 INFO L131 PetriNetUnfolder]: For 49/57 co-relation queries the response was YES. [2022-11-18 20:42:15,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3184 conditions, 2894 events. 218/2894 cut-off events. For 49/57 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 20555 event pairs, 90 based on Foata normal form. 0/2327 useless extension candidates. Maximal degree in co-relation 3079. Up to 236 conditions per place. [2022-11-18 20:42:15,345 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1682 dead transitions. [2022-11-18 20:42:15,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1618 places, 1682 transitions, 3486 flow [2022-11-18 20:42:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:15,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-18 20:42:15,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-18 20:42:15,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-18 20:42:15,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-18 20:42:15,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:15,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-18 20:42:15,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:15,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:15,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:15,391 INFO L175 Difference]: Start difference. First operand has 1617 places, 1683 transitions, 3376 flow. Second operand 3 states and 5061 transitions. [2022-11-18 20:42:15,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1618 places, 1682 transitions, 3486 flow [2022-11-18 20:42:15,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 1682 transitions, 3482 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:15,440 INFO L231 Difference]: Finished difference. Result has 1616 places, 1682 transitions, 3374 flow [2022-11-18 20:42:15,443 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3370, PETRI_DIFFERENCE_MINUEND_PLACES=1614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3374, PETRI_PLACES=1616, PETRI_TRANSITIONS=1682} [2022-11-18 20:42:15,444 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -20 predicate places. [2022-11-18 20:42:15,445 INFO L495 AbstractCegarLoop]: Abstraction has has 1616 places, 1682 transitions, 3374 flow [2022-11-18 20:42:15,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:15,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:15,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:15,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:42:15,448 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:42:15,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:15,449 INFO L85 PathProgramCache]: Analyzing trace with hash -443252084, now seen corresponding path program 1 times [2022-11-18 20:42:15,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:15,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974745484] [2022-11-18 20:42:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:15,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:15,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:15,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974745484] [2022-11-18 20:42:15,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974745484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:15,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:15,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:15,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66771574] [2022-11-18 20:42:15,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:15,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:15,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:15,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:15,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:15,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1680 out of 1763 [2022-11-18 20:42:15,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1616 places, 1682 transitions, 3374 flow. Second operand has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:15,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:15,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1680 of 1763 [2022-11-18 20:42:15,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:17,889 INFO L130 PetriNetUnfolder]: 164/2465 cut-off events. [2022-11-18 20:42:17,889 INFO L131 PetriNetUnfolder]: For 57/59 co-relation queries the response was YES. [2022-11-18 20:42:18,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 2465 events. 164/2465 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 14433 event pairs, 54 based on Foata normal form. 0/1982 useless extension candidates. Maximal degree in co-relation 2518. Up to 156 conditions per place. [2022-11-18 20:42:18,094 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 41 selfloop transitions, 2 changer transitions 0/1681 dead transitions. [2022-11-18 20:42:18,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1617 places, 1681 transitions, 3458 flow [2022-11-18 20:42:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5084 transitions. [2022-11-18 20:42:18,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9612403100775194 [2022-11-18 20:42:18,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5084 transitions. [2022-11-18 20:42:18,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5084 transitions. [2022-11-18 20:42:18,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:18,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5084 transitions. [2022-11-18 20:42:18,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1694.6666666666667) internal successors, (5084), 3 states have internal predecessors, (5084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:18,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:18,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:18,128 INFO L175 Difference]: Start difference. First operand has 1616 places, 1682 transitions, 3374 flow. Second operand 3 states and 5084 transitions. [2022-11-18 20:42:18,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1617 places, 1681 transitions, 3458 flow [2022-11-18 20:42:18,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1615 places, 1681 transitions, 3454 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:18,165 INFO L231 Difference]: Finished difference. Result has 1615 places, 1681 transitions, 3372 flow [2022-11-18 20:42:18,168 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=1613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3372, PETRI_PLACES=1615, PETRI_TRANSITIONS=1681} [2022-11-18 20:42:18,169 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -21 predicate places. [2022-11-18 20:42:18,169 INFO L495 AbstractCegarLoop]: Abstraction has has 1615 places, 1681 transitions, 3372 flow [2022-11-18 20:42:18,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:18,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:18,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:18,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:42:18,171 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:42:18,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:18,172 INFO L85 PathProgramCache]: Analyzing trace with hash 605180619, now seen corresponding path program 1 times [2022-11-18 20:42:18,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:18,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027909283] [2022-11-18 20:42:18,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:18,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:18,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:18,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027909283] [2022-11-18 20:42:18,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027909283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:18,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:18,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:18,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734293445] [2022-11-18 20:42:18,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:18,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:18,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:18,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:18,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:18,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-18 20:42:18,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1615 places, 1681 transitions, 3372 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:18,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:18,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-18 20:42:18,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:42:20,384 INFO L130 PetriNetUnfolder]: 195/2433 cut-off events. [2022-11-18 20:42:20,384 INFO L131 PetriNetUnfolder]: For 94/96 co-relation queries the response was YES. [2022-11-18 20:42:20,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2678 conditions, 2433 events. 195/2433 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 16918 event pairs, 90 based on Foata normal form. 0/1967 useless extension candidates. Maximal degree in co-relation 2559. Up to 236 conditions per place. [2022-11-18 20:42:20,576 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1680 dead transitions. [2022-11-18 20:42:20,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1616 places, 1680 transitions, 3482 flow [2022-11-18 20:42:20,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:42:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:42:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-18 20:42:20,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-18 20:42:20,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-18 20:42:20,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-18 20:42:20,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:42:20,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-18 20:42:20,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:20,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:20,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:20,612 INFO L175 Difference]: Start difference. First operand has 1615 places, 1681 transitions, 3372 flow. Second operand 3 states and 5061 transitions. [2022-11-18 20:42:20,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1616 places, 1680 transitions, 3482 flow [2022-11-18 20:42:20,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1614 places, 1680 transitions, 3478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:42:20,651 INFO L231 Difference]: Finished difference. Result has 1614 places, 1680 transitions, 3370 flow [2022-11-18 20:42:20,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3366, PETRI_DIFFERENCE_MINUEND_PLACES=1612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3370, PETRI_PLACES=1614, PETRI_TRANSITIONS=1680} [2022-11-18 20:42:20,654 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -22 predicate places. [2022-11-18 20:42:20,654 INFO L495 AbstractCegarLoop]: Abstraction has has 1614 places, 1680 transitions, 3370 flow [2022-11-18 20:42:20,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:20,655 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:42:20,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:42:20,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:42:20,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-18 20:42:20,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:42:20,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1433839445, now seen corresponding path program 1 times [2022-11-18 20:42:20,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:42:20,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684149808] [2022-11-18 20:42:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:42:20,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:42:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:42:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:42:20,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:42:20,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684149808] [2022-11-18 20:42:20,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684149808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:42:20,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:42:20,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:42:20,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632496060] [2022-11-18 20:42:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:42:20,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:42:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:42:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:42:20,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:42:20,743 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-18 20:42:20,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1614 places, 1680 transitions, 3370 flow. Second operand has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:42:20,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:42:20,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-18 20:42:20,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand