./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/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_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 09:27:21,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:21,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:21,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:21,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:21,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:21,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:21,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:21,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:21,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:21,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:21,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:21,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:21,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:21,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:21,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:21,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:21,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:21,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:21,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:21,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:21,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:21,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:21,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:21,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:21,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:21,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:21,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:21,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:21,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:21,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:21,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:21,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:22,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:22,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:22,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:22,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:22,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:22,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:22,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:22,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:22,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:27:22,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:22,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:22,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:22,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:22,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:22,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:22,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:22,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:22,068 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:22,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:22,069 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:27:22,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:27:22,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:22,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:27:22,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:22,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:22,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:22,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:22,071 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:27:22,071 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:27:22,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:22,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:22,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:22,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:22,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:22,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:22,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:22,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:22,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:22,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:22,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:22,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:22,074 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:22,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:22,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:22,075 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_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb [2022-11-20 09:27:22,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:22,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:22,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:22,360 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:22,361 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:22,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-20 09:27:25,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:25,685 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:25,685 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-20 09:27:25,693 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/data/194ba834d/6c5ca5a1157e491d9e5c3815ee33ca3a/FLAG10e83e454 [2022-11-20 09:27:25,707 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/data/194ba834d/6c5ca5a1157e491d9e5c3815ee33ca3a [2022-11-20 09:27:25,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:25,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:25,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:25,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:25,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:25,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:25" (1/1) ... [2022-11-20 09:27:25,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39920b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:25, skipping insertion in model container [2022-11-20 09:27:25,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:25" (1/1) ... [2022-11-20 09:27:25,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:25,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:25,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-20 09:27:26,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:26,017 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:26,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-20 09:27:26,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:26,109 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:26,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26 WrapperNode [2022-11-20 09:27:26,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:26,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:26,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:26,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:26,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,203 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1309 [2022-11-20 09:27:26,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:26,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:26,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:26,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:26,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:26,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:26,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:26,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:26,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:26,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:26,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:26,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5797002-b431-4447-871b-e0506c4b39e6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:26,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:26,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:26,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:27:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:27:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:27:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:27:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:27:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:27:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:27:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:27:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:27:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:27:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:26,396 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:27:26,682 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:26,685 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:28,317 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:27:28,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:27:28,347 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 09:27:28,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:28 BoogieIcfgContainer [2022-11-20 09:27:28,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:27:28,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:27:28,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:27:28,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:27:28,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:25" (1/3) ... [2022-11-20 09:27:28,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db4b188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:28, skipping insertion in model container [2022-11-20 09:27:28,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (2/3) ... [2022-11-20 09:27:28,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db4b188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:28, skipping insertion in model container [2022-11-20 09:27:28,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:28" (3/3) ... [2022-11-20 09:27:28,363 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2022-11-20 09:27:28,373 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:27:28,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:27:28,385 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 230 error locations. [2022-11-20 09:27:28,386 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:27:28,822 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 09:27:28,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1662 places, 1763 transitions, 3550 flow [2022-11-20 09:27:31,129 INFO L130 PetriNetUnfolder]: 111/1760 cut-off events. [2022-11-20 09:27:31,129 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:27:31,254 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. [2022-11-20 09:27:31,255 INFO L82 GeneralOperation]: Start removeDead. Operand has 1662 places, 1763 transitions, 3550 flow [2022-11-20 09:27:31,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1636 places, 1734 transitions, 3486 flow [2022-11-20 09:27:31,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:27:31,371 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;@2d59ebf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:27:31,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2022-11-20 09:27:31,378 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-20 09:27:31,378 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:27:31,379 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:31,380 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] [2022-11-20 09:27:31,380 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)] === [2022-11-20 09:27:31,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash 677292700, now seen corresponding path program 1 times [2022-11-20 09:27:31,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:31,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847856865] [2022-11-20 09:27:31,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:31,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:31,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:31,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:31,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847856865] [2022-11-20 09:27:31,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847856865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:31,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:31,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:31,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345626751] [2022-11-20 09:27:31,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:31,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:31,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:31,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:31,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:31,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-20 09:27:31,805 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) [2022-11-20 09:27:31,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:31,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-20 09:27:31,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:35,181 INFO L130 PetriNetUnfolder]: 208/3994 cut-off events. [2022-11-20 09:27:35,181 INFO L131 PetriNetUnfolder]: For 56/58 co-relation queries the response was YES. [2022-11-20 09:27:35,425 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. [2022-11-20 09:27:35,531 INFO L137 encePairwiseOnDemand]: 1724/1763 looper letters, 15 selfloop transitions, 2 changer transitions 6/1697 dead transitions. [2022-11-20 09:27:35,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1637 places, 1697 transitions, 3446 flow [2022-11-20 09:27:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:35,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5175 transitions. [2022-11-20 09:27:35,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9784458309699376 [2022-11-20 09:27:35,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5175 transitions. [2022-11-20 09:27:35,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5175 transitions. [2022-11-20 09:27:35,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:35,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5175 transitions. [2022-11-20 09:27:35,591 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) [2022-11-20 09:27:35,609 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) [2022-11-20 09:27:35,614 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) [2022-11-20 09:27:35,616 INFO L175 Difference]: Start difference. First operand has 1636 places, 1734 transitions, 3486 flow. Second operand 3 states and 5175 transitions. [2022-11-20 09:27:35,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1637 places, 1697 transitions, 3446 flow [2022-11-20 09:27:35,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1631 places, 1697 transitions, 3434 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 09:27:35,663 INFO L231 Difference]: Finished difference. Result has 1631 places, 1691 transitions, 3392 flow [2022-11-20 09:27:35,667 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} [2022-11-20 09:27:35,673 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -5 predicate places. [2022-11-20 09:27:35,674 INFO L495 AbstractCegarLoop]: Abstraction has has 1631 places, 1691 transitions, 3392 flow [2022-11-20 09:27:35,677 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) [2022-11-20 09:27:35,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:35,678 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] [2022-11-20 09:27:35,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:27:35,678 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)] === [2022-11-20 09:27:35,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:35,680 INFO L85 PathProgramCache]: Analyzing trace with hash 748304386, now seen corresponding path program 1 times [2022-11-20 09:27:35,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:35,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289441332] [2022-11-20 09:27:35,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:35,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:35,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:35,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289441332] [2022-11-20 09:27:35,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289441332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:35,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:35,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:35,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87102375] [2022-11-20 09:27:35,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:35,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:35,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:35,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:35,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:35,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-20 09:27:35,841 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) [2022-11-20 09:27:35,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:35,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-20 09:27:35,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:39,299 INFO L130 PetriNetUnfolder]: 208/4031 cut-off events. [2022-11-20 09:27:39,299 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-20 09:27:39,592 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. [2022-11-20 09:27:39,675 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1690 dead transitions. [2022-11-20 09:27:39,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1626 places, 1690 transitions, 3424 flow [2022-11-20 09:27:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:39,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-20 09:27:39,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-20 09:27:39,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-20 09:27:39,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-20 09:27:39,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:39,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-20 09:27:39,703 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) [2022-11-20 09:27:39,714 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) [2022-11-20 09:27:39,718 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) [2022-11-20 09:27:39,718 INFO L175 Difference]: Start difference. First operand has 1631 places, 1691 transitions, 3392 flow. Second operand 3 states and 5139 transitions. [2022-11-20 09:27:39,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1626 places, 1690 transitions, 3424 flow [2022-11-20 09:27:39,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1624 places, 1690 transitions, 3420 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:39,746 INFO L231 Difference]: Finished difference. Result has 1624 places, 1690 transitions, 3390 flow [2022-11-20 09:27:39,749 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} [2022-11-20 09:27:39,750 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -12 predicate places. [2022-11-20 09:27:39,750 INFO L495 AbstractCegarLoop]: Abstraction has has 1624 places, 1690 transitions, 3390 flow [2022-11-20 09:27:39,754 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) [2022-11-20 09:27:39,754 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:39,754 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] [2022-11-20 09:27:39,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:27:39,755 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)] === [2022-11-20 09:27:39,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1845000463, now seen corresponding path program 1 times [2022-11-20 09:27:39,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:39,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835592372] [2022-11-20 09:27:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:39,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:39,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:39,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835592372] [2022-11-20 09:27:39,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835592372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:39,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:39,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:39,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556204231] [2022-11-20 09:27:39,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:39,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:39,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:39,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:39,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:39,858 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-20 09:27:39,882 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) [2022-11-20 09:27:39,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:39,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-20 09:27:39,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:42,184 INFO L130 PetriNetUnfolder]: 144/2904 cut-off events. [2022-11-20 09:27:42,185 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-20 09:27:42,293 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. [2022-11-20 09:27:42,379 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1689 dead transitions. [2022-11-20 09:27:42,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1625 places, 1689 transitions, 3422 flow [2022-11-20 09:27:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:42,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:42,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-20 09:27:42,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-20 09:27:42,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-20 09:27:42,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-20 09:27:42,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:42,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-20 09:27:42,420 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) [2022-11-20 09:27:42,432 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) [2022-11-20 09:27:42,435 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) [2022-11-20 09:27:42,435 INFO L175 Difference]: Start difference. First operand has 1624 places, 1690 transitions, 3390 flow. Second operand 3 states and 5139 transitions. [2022-11-20 09:27:42,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1625 places, 1689 transitions, 3422 flow [2022-11-20 09:27:42,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1623 places, 1689 transitions, 3418 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:42,470 INFO L231 Difference]: Finished difference. Result has 1623 places, 1689 transitions, 3388 flow [2022-11-20 09:27:42,473 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} [2022-11-20 09:27:42,476 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -13 predicate places. [2022-11-20 09:27:42,476 INFO L495 AbstractCegarLoop]: Abstraction has has 1623 places, 1689 transitions, 3388 flow [2022-11-20 09:27:42,478 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) [2022-11-20 09:27:42,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:42,479 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] [2022-11-20 09:27:42,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:27:42,479 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)] === [2022-11-20 09:27:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:42,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1565213468, now seen corresponding path program 1 times [2022-11-20 09:27:42,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:42,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620090071] [2022-11-20 09:27:42,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:42,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:42,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:42,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:42,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620090071] [2022-11-20 09:27:42,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620090071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:42,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:42,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:42,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478764171] [2022-11-20 09:27:42,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:42,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:42,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:42,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:42,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:42,600 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-20 09:27:42,607 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) [2022-11-20 09:27:42,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:42,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-20 09:27:42,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:44,791 INFO L130 PetriNetUnfolder]: 144/2931 cut-off events. [2022-11-20 09:27:44,791 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-20 09:27:44,972 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. [2022-11-20 09:27:45,234 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1688 dead transitions. [2022-11-20 09:27:45,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1624 places, 1688 transitions, 3420 flow [2022-11-20 09:27:45,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:45,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-20 09:27:45,247 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-20 09:27:45,248 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-20 09:27:45,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-20 09:27:45,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:45,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-20 09:27:45,266 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) [2022-11-20 09:27:45,277 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) [2022-11-20 09:27:45,280 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) [2022-11-20 09:27:45,280 INFO L175 Difference]: Start difference. First operand has 1623 places, 1689 transitions, 3388 flow. Second operand 3 states and 5139 transitions. [2022-11-20 09:27:45,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1624 places, 1688 transitions, 3420 flow [2022-11-20 09:27:45,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1622 places, 1688 transitions, 3416 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:45,309 INFO L231 Difference]: Finished difference. Result has 1622 places, 1688 transitions, 3386 flow [2022-11-20 09:27:45,317 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} [2022-11-20 09:27:45,318 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -14 predicate places. [2022-11-20 09:27:45,319 INFO L495 AbstractCegarLoop]: Abstraction has has 1622 places, 1688 transitions, 3386 flow [2022-11-20 09:27:45,321 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) [2022-11-20 09:27:45,321 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:45,321 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] [2022-11-20 09:27:45,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:27:45,322 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)] === [2022-11-20 09:27:45,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:45,323 INFO L85 PathProgramCache]: Analyzing trace with hash -201898377, now seen corresponding path program 1 times [2022-11-20 09:27:45,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:45,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868981965] [2022-11-20 09:27:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:45,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:45,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:45,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868981965] [2022-11-20 09:27:45,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868981965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:45,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:45,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:45,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111998245] [2022-11-20 09:27:45,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:45,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:45,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:45,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-20 09:27:45,445 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) [2022-11-20 09:27:45,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:45,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-20 09:27:45,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:47,250 INFO L130 PetriNetUnfolder]: 139/2626 cut-off events. [2022-11-20 09:27:47,250 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-20 09:27:47,334 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. [2022-11-20 09:27:47,388 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1687 dead transitions. [2022-11-20 09:27:47,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1623 places, 1687 transitions, 3418 flow [2022-11-20 09:27:47,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:47,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-20 09:27:47,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-20 09:27:47,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-20 09:27:47,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-20 09:27:47,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:47,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-20 09:27:47,421 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) [2022-11-20 09:27:47,434 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) [2022-11-20 09:27:47,437 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) [2022-11-20 09:27:47,438 INFO L175 Difference]: Start difference. First operand has 1622 places, 1688 transitions, 3386 flow. Second operand 3 states and 5139 transitions. [2022-11-20 09:27:47,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1623 places, 1687 transitions, 3418 flow [2022-11-20 09:27:47,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1621 places, 1687 transitions, 3414 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:47,473 INFO L231 Difference]: Finished difference. Result has 1621 places, 1687 transitions, 3384 flow [2022-11-20 09:27:47,476 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} [2022-11-20 09:27:47,477 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -15 predicate places. [2022-11-20 09:27:47,477 INFO L495 AbstractCegarLoop]: Abstraction has has 1621 places, 1687 transitions, 3384 flow [2022-11-20 09:27:47,479 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) [2022-11-20 09:27:47,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:47,479 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] [2022-11-20 09:27:47,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:27:47,480 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)] === [2022-11-20 09:27:47,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1598083093, now seen corresponding path program 1 times [2022-11-20 09:27:47,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:47,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072381600] [2022-11-20 09:27:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:47,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:47,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:47,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072381600] [2022-11-20 09:27:47,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072381600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:47,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:47,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:47,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527271831] [2022-11-20 09:27:47,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:47,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:47,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:47,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:47,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:47,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-20 09:27:47,577 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) [2022-11-20 09:27:47,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:47,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-20 09:27:47,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:49,489 INFO L130 PetriNetUnfolder]: 139/2669 cut-off events. [2022-11-20 09:27:49,489 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-20 09:27:49,605 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. [2022-11-20 09:27:49,665 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1686 dead transitions. [2022-11-20 09:27:49,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1622 places, 1686 transitions, 3416 flow [2022-11-20 09:27:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:49,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:49,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-20 09:27:49,678 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-20 09:27:49,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-20 09:27:49,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-20 09:27:49,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:49,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-20 09:27:49,696 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) [2022-11-20 09:27:49,710 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) [2022-11-20 09:27:49,713 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) [2022-11-20 09:27:49,714 INFO L175 Difference]: Start difference. First operand has 1621 places, 1687 transitions, 3384 flow. Second operand 3 states and 5139 transitions. [2022-11-20 09:27:49,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1622 places, 1686 transitions, 3416 flow [2022-11-20 09:27:49,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1620 places, 1686 transitions, 3412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:49,894 INFO L231 Difference]: Finished difference. Result has 1620 places, 1686 transitions, 3382 flow [2022-11-20 09:27:49,905 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} [2022-11-20 09:27:49,905 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -16 predicate places. [2022-11-20 09:27:49,906 INFO L495 AbstractCegarLoop]: Abstraction has has 1620 places, 1686 transitions, 3382 flow [2022-11-20 09:27:49,908 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) [2022-11-20 09:27:49,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:49,908 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] [2022-11-20 09:27:49,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:27:49,909 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)] === [2022-11-20 09:27:49,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:49,909 INFO L85 PathProgramCache]: Analyzing trace with hash 288291829, now seen corresponding path program 1 times [2022-11-20 09:27:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:49,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667806520] [2022-11-20 09:27:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:49,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:49,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667806520] [2022-11-20 09:27:49,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667806520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:49,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:49,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:49,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764935416] [2022-11-20 09:27:49,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:49,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:49,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:49,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:49,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:49,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1763 [2022-11-20 09:27:49,963 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) [2022-11-20 09:27:49,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:49,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1763 [2022-11-20 09:27:49,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:53,685 INFO L130 PetriNetUnfolder]: 348/5997 cut-off events. [2022-11-20 09:27:53,685 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:27:53,984 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. [2022-11-20 09:27:54,108 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 39 selfloop transitions, 2 changer transitions 0/1685 dead transitions. [2022-11-20 09:27:54,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1621 places, 1685 transitions, 3462 flow [2022-11-20 09:27:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:54,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:54,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5091 transitions. [2022-11-20 09:27:54,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9625638116846285 [2022-11-20 09:27:54,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5091 transitions. [2022-11-20 09:27:54,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5091 transitions. [2022-11-20 09:27:54,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:54,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5091 transitions. [2022-11-20 09:27:54,135 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) [2022-11-20 09:27:54,147 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) [2022-11-20 09:27:54,149 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) [2022-11-20 09:27:54,149 INFO L175 Difference]: Start difference. First operand has 1620 places, 1686 transitions, 3382 flow. Second operand 3 states and 5091 transitions. [2022-11-20 09:27:54,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1621 places, 1685 transitions, 3462 flow [2022-11-20 09:27:54,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1619 places, 1685 transitions, 3458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:54,183 INFO L231 Difference]: Finished difference. Result has 1619 places, 1685 transitions, 3380 flow [2022-11-20 09:27:54,186 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} [2022-11-20 09:27:54,187 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -17 predicate places. [2022-11-20 09:27:54,188 INFO L495 AbstractCegarLoop]: Abstraction has has 1619 places, 1685 transitions, 3380 flow [2022-11-20 09:27:54,189 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) [2022-11-20 09:27:54,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:54,190 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] [2022-11-20 09:27:54,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:27:54,190 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)] === [2022-11-20 09:27:54,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:54,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1948888943, now seen corresponding path program 1 times [2022-11-20 09:27:54,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:54,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927491514] [2022-11-20 09:27:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:54,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:54,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:54,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927491514] [2022-11-20 09:27:54,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927491514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:54,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:54,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:54,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580958650] [2022-11-20 09:27:54,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:54,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:54,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:54,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:54,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:54,284 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-20 09:27:54,291 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) [2022-11-20 09:27:54,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:54,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-20 09:27:54,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:56,765 INFO L130 PetriNetUnfolder]: 241/3335 cut-off events. [2022-11-20 09:27:56,765 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-20 09:27:56,881 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. [2022-11-20 09:27:56,954 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1684 dead transitions. [2022-11-20 09:27:56,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1620 places, 1684 transitions, 3490 flow [2022-11-20 09:27:56,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-20 09:27:56,965 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-20 09:27:56,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-20 09:27:56,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-20 09:27:56,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:56,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-20 09:27:56,979 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) [2022-11-20 09:27:56,989 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) [2022-11-20 09:27:56,991 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) [2022-11-20 09:27:56,991 INFO L175 Difference]: Start difference. First operand has 1619 places, 1685 transitions, 3380 flow. Second operand 3 states and 5061 transitions. [2022-11-20 09:27:56,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1620 places, 1684 transitions, 3490 flow [2022-11-20 09:27:57,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1618 places, 1684 transitions, 3486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:57,026 INFO L231 Difference]: Finished difference. Result has 1618 places, 1684 transitions, 3378 flow [2022-11-20 09:27:57,029 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} [2022-11-20 09:27:57,030 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -18 predicate places. [2022-11-20 09:27:57,030 INFO L495 AbstractCegarLoop]: Abstraction has has 1618 places, 1684 transitions, 3378 flow [2022-11-20 09:27:57,031 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) [2022-11-20 09:27:57,031 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:57,031 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] [2022-11-20 09:27:57,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:27:57,032 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)] === [2022-11-20 09:27:57,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1986567560, now seen corresponding path program 1 times [2022-11-20 09:27:57,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:57,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228175806] [2022-11-20 09:27:57,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:57,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:57,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:57,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228175806] [2022-11-20 09:27:57,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228175806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:57,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:57,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:57,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725191063] [2022-11-20 09:27:57,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:57,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:57,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:57,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:57,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:57,284 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1680 out of 1763 [2022-11-20 09:27:57,288 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) [2022-11-20 09:27:57,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:57,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1680 of 1763 [2022-11-20 09:27:57,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:00,727 INFO L130 PetriNetUnfolder]: 256/4239 cut-off events. [2022-11-20 09:28:00,727 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-20 09:28:00,989 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. [2022-11-20 09:28:01,101 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 42 selfloop transitions, 2 changer transitions 0/1683 dead transitions. [2022-11-20 09:28:01,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1619 places, 1683 transitions, 3464 flow [2022-11-20 09:28:01,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:01,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-20 09:28:01,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9614293817356778 [2022-11-20 09:28:01,112 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-20 09:28:01,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-20 09:28:01,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:01,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-20 09:28:01,320 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) [2022-11-20 09:28:01,328 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) [2022-11-20 09:28:01,329 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) [2022-11-20 09:28:01,329 INFO L175 Difference]: Start difference. First operand has 1618 places, 1684 transitions, 3378 flow. Second operand 3 states and 5085 transitions. [2022-11-20 09:28:01,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1619 places, 1683 transitions, 3464 flow [2022-11-20 09:28:01,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1617 places, 1683 transitions, 3460 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:01,358 INFO L231 Difference]: Finished difference. Result has 1617 places, 1683 transitions, 3376 flow [2022-11-20 09:28:01,359 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} [2022-11-20 09:28:01,360 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -19 predicate places. [2022-11-20 09:28:01,361 INFO L495 AbstractCegarLoop]: Abstraction has has 1617 places, 1683 transitions, 3376 flow [2022-11-20 09:28:01,362 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) [2022-11-20 09:28:01,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:01,362 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] [2022-11-20 09:28:01,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:28:01,362 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)] === [2022-11-20 09:28:01,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:01,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1939107505, now seen corresponding path program 1 times [2022-11-20 09:28:01,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:01,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314843645] [2022-11-20 09:28:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:01,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:01,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:01,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314843645] [2022-11-20 09:28:01,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314843645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:01,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:01,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:01,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468418992] [2022-11-20 09:28:01,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:01,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:01,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:01,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:01,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:01,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-20 09:28:01,449 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) [2022-11-20 09:28:01,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:01,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-20 09:28:01,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:04,267 INFO L130 PetriNetUnfolder]: 218/2894 cut-off events. [2022-11-20 09:28:04,267 INFO L131 PetriNetUnfolder]: For 49/57 co-relation queries the response was YES. [2022-11-20 09:28:04,426 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. [2022-11-20 09:28:04,511 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1682 dead transitions. [2022-11-20 09:28:04,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1618 places, 1682 transitions, 3486 flow [2022-11-20 09:28:04,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:04,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:04,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-20 09:28:04,525 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-20 09:28:04,525 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-20 09:28:04,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-20 09:28:04,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:04,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-20 09:28:04,535 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) [2022-11-20 09:28:04,541 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) [2022-11-20 09:28:04,543 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) [2022-11-20 09:28:04,543 INFO L175 Difference]: Start difference. First operand has 1617 places, 1683 transitions, 3376 flow. Second operand 3 states and 5061 transitions. [2022-11-20 09:28:04,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1618 places, 1682 transitions, 3486 flow [2022-11-20 09:28:04,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 1682 transitions, 3482 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:04,574 INFO L231 Difference]: Finished difference. Result has 1616 places, 1682 transitions, 3374 flow [2022-11-20 09:28:04,577 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} [2022-11-20 09:28:04,578 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -20 predicate places. [2022-11-20 09:28:04,578 INFO L495 AbstractCegarLoop]: Abstraction has has 1616 places, 1682 transitions, 3374 flow [2022-11-20 09:28:04,579 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) [2022-11-20 09:28:04,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:04,580 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] [2022-11-20 09:28:04,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:28:04,581 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)] === [2022-11-20 09:28:04,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:04,581 INFO L85 PathProgramCache]: Analyzing trace with hash 401581992, now seen corresponding path program 1 times [2022-11-20 09:28:04,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:04,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46808590] [2022-11-20 09:28:04,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:04,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:04,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:04,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46808590] [2022-11-20 09:28:04,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46808590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:04,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:04,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:04,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41640109] [2022-11-20 09:28:04,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:04,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:04,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:04,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:04,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:04,640 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1680 out of 1763 [2022-11-20 09:28:04,645 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) [2022-11-20 09:28:04,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:04,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1680 of 1763 [2022-11-20 09:28:04,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:06,655 INFO L130 PetriNetUnfolder]: 164/2465 cut-off events. [2022-11-20 09:28:06,655 INFO L131 PetriNetUnfolder]: For 57/59 co-relation queries the response was YES. [2022-11-20 09:28:06,731 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. [2022-11-20 09:28:06,772 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 41 selfloop transitions, 2 changer transitions 0/1681 dead transitions. [2022-11-20 09:28:06,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1617 places, 1681 transitions, 3458 flow [2022-11-20 09:28:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:06,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5084 transitions. [2022-11-20 09:28:06,779 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9612403100775194 [2022-11-20 09:28:06,779 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5084 transitions. [2022-11-20 09:28:06,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5084 transitions. [2022-11-20 09:28:06,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:06,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5084 transitions. [2022-11-20 09:28:06,789 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) [2022-11-20 09:28:06,796 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) [2022-11-20 09:28:06,798 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) [2022-11-20 09:28:06,798 INFO L175 Difference]: Start difference. First operand has 1616 places, 1682 transitions, 3374 flow. Second operand 3 states and 5084 transitions. [2022-11-20 09:28:06,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1617 places, 1681 transitions, 3458 flow [2022-11-20 09:28:06,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1615 places, 1681 transitions, 3454 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:06,828 INFO L231 Difference]: Finished difference. Result has 1615 places, 1681 transitions, 3372 flow [2022-11-20 09:28:06,831 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} [2022-11-20 09:28:06,832 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -21 predicate places. [2022-11-20 09:28:06,832 INFO L495 AbstractCegarLoop]: Abstraction has has 1615 places, 1681 transitions, 3372 flow [2022-11-20 09:28:06,833 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) [2022-11-20 09:28:06,833 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:06,834 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] [2022-11-20 09:28:06,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:28:06,834 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)] === [2022-11-20 09:28:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:06,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1921747409, now seen corresponding path program 1 times [2022-11-20 09:28:06,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:06,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400757865] [2022-11-20 09:28:06,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:06,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:06,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:06,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400757865] [2022-11-20 09:28:06,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400757865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:06,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:06,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:06,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380810910] [2022-11-20 09:28:06,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:06,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:06,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:06,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:06,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:06,895 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-20 09:28:06,900 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) [2022-11-20 09:28:06,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:06,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-20 09:28:06,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:08,538 INFO L130 PetriNetUnfolder]: 195/2433 cut-off events. [2022-11-20 09:28:08,539 INFO L131 PetriNetUnfolder]: For 94/96 co-relation queries the response was YES. [2022-11-20 09:28:08,648 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. [2022-11-20 09:28:08,690 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1680 dead transitions. [2022-11-20 09:28:08,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1616 places, 1680 transitions, 3482 flow [2022-11-20 09:28:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:08,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-20 09:28:08,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-20 09:28:08,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-20 09:28:08,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-20 09:28:08,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:08,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-20 09:28:08,707 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) [2022-11-20 09:28:08,713 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) [2022-11-20 09:28:08,714 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) [2022-11-20 09:28:08,714 INFO L175 Difference]: Start difference. First operand has 1615 places, 1681 transitions, 3372 flow. Second operand 3 states and 5061 transitions. [2022-11-20 09:28:08,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1616 places, 1680 transitions, 3482 flow [2022-11-20 09:28:08,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1614 places, 1680 transitions, 3478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:08,742 INFO L231 Difference]: Finished difference. Result has 1614 places, 1680 transitions, 3370 flow [2022-11-20 09:28:08,744 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} [2022-11-20 09:28:08,745 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -22 predicate places. [2022-11-20 09:28:08,745 INFO L495 AbstractCegarLoop]: Abstraction has has 1614 places, 1680 transitions, 3370 flow [2022-11-20 09:28:08,746 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) [2022-11-20 09:28:08,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:08,746 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] [2022-11-20 09:28:08,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:28:08,747 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)] === [2022-11-20 09:28:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:08,747 INFO L85 PathProgramCache]: Analyzing trace with hash -782127175, now seen corresponding path program 1 times [2022-11-20 09:28:08,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:08,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139021556] [2022-11-20 09:28:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:08,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:08,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:08,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139021556] [2022-11-20 09:28:08,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139021556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:08,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:08,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:08,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671316354] [2022-11-20 09:28:08,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:08,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:08,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:08,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:08,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:08,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-20 09:28:08,806 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) [2022-11-20 09:28:08,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:08,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-20 09:28:08,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:15,728 INFO L130 PetriNetUnfolder]: 1081/12140 cut-off events. [2022-11-20 09:28:15,728 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-20 09:28:16,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13179 conditions, 12140 events. 1081/12140 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 132490 event pairs, 480 based on Foata normal form. 0/9565 useless extension candidates. Maximal degree in co-relation 13053. Up to 850 conditions per place. [2022-11-20 09:28:16,491 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 33 selfloop transitions, 2 changer transitions 0/1679 dead transitions. [2022-11-20 09:28:16,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1615 places, 1679 transitions, 3438 flow [2022-11-20 09:28:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:16,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:16,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5103 transitions. [2022-11-20 09:28:16,498 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9648326715825298 [2022-11-20 09:28:16,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5103 transitions. [2022-11-20 09:28:16,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5103 transitions. [2022-11-20 09:28:16,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:16,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5103 transitions. [2022-11-20 09:28:16,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1701.0) internal successors, (5103), 3 states have internal predecessors, (5103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:16,514 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) [2022-11-20 09:28:16,516 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) [2022-11-20 09:28:16,516 INFO L175 Difference]: Start difference. First operand has 1614 places, 1680 transitions, 3370 flow. Second operand 3 states and 5103 transitions. [2022-11-20 09:28:16,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1615 places, 1679 transitions, 3438 flow [2022-11-20 09:28:16,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1613 places, 1679 transitions, 3434 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:16,546 INFO L231 Difference]: Finished difference. Result has 1613 places, 1679 transitions, 3368 flow [2022-11-20 09:28:16,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3364, PETRI_DIFFERENCE_MINUEND_PLACES=1611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3368, PETRI_PLACES=1613, PETRI_TRANSITIONS=1679} [2022-11-20 09:28:16,549 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -23 predicate places. [2022-11-20 09:28:16,549 INFO L495 AbstractCegarLoop]: Abstraction has has 1613 places, 1679 transitions, 3368 flow [2022-11-20 09:28:16,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-20 09:28:16,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:16,551 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, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:16,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:28:16,552 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-20 09:28:16,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:16,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1621979617, now seen corresponding path program 1 times [2022-11-20 09:28:16,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:16,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155580592] [2022-11-20 09:28:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:16,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:16,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:16,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155580592] [2022-11-20 09:28:16,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155580592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:16,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:16,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:16,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504434071] [2022-11-20 09:28:16,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:16,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:16,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:16,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:16,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:16,614 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-20 09:28:16,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1613 places, 1679 transitions, 3368 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) [2022-11-20 09:28:16,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:16,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-20 09:28:16,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:24,744 INFO L130 PetriNetUnfolder]: 742/10414 cut-off events. [2022-11-20 09:28:24,745 INFO L131 PetriNetUnfolder]: For 40/42 co-relation queries the response was YES. [2022-11-20 09:28:25,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10906 conditions, 10414 events. 742/10414 cut-off events. For 40/42 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 107243 event pairs, 192 based on Foata normal form. 0/8162 useless extension candidates. Maximal degree in co-relation 10774. Up to 459 conditions per place. [2022-11-20 09:28:25,791 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 33 selfloop transitions, 2 changer transitions 0/1678 dead transitions. [2022-11-20 09:28:25,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1614 places, 1678 transitions, 3436 flow [2022-11-20 09:28:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:25,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5103 transitions. [2022-11-20 09:28:25,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9648326715825298 [2022-11-20 09:28:25,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5103 transitions. [2022-11-20 09:28:25,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5103 transitions. [2022-11-20 09:28:25,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:25,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5103 transitions. [2022-11-20 09:28:25,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1701.0) internal successors, (5103), 3 states have internal predecessors, (5103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:25,806 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) [2022-11-20 09:28:25,807 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) [2022-11-20 09:28:25,808 INFO L175 Difference]: Start difference. First operand has 1613 places, 1679 transitions, 3368 flow. Second operand 3 states and 5103 transitions. [2022-11-20 09:28:25,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1614 places, 1678 transitions, 3436 flow [2022-11-20 09:28:25,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1612 places, 1678 transitions, 3432 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:25,838 INFO L231 Difference]: Finished difference. Result has 1612 places, 1678 transitions, 3366 flow [2022-11-20 09:28:25,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3362, PETRI_DIFFERENCE_MINUEND_PLACES=1610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3366, PETRI_PLACES=1612, PETRI_TRANSITIONS=1678} [2022-11-20 09:28:25,841 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -24 predicate places. [2022-11-20 09:28:25,842 INFO L495 AbstractCegarLoop]: Abstraction has has 1612 places, 1678 transitions, 3366 flow [2022-11-20 09:28:25,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-20 09:28:25,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:25,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:25,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:28:25,844 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-20 09:28:25,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:25,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1041891592, now seen corresponding path program 1 times [2022-11-20 09:28:25,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:25,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825146530] [2022-11-20 09:28:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:25,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:25,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:25,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825146530] [2022-11-20 09:28:25,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825146530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:25,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:25,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:25,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421805597] [2022-11-20 09:28:25,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:25,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:25,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:25,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:25,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:25,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-20 09:28:25,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1612 places, 1678 transitions, 3366 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) [2022-11-20 09:28:25,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:25,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-20 09:28:25,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand