./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a --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 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 --- 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-b5237d8 [2022-11-21 09:05:44,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:05:44,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:05:44,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:05:44,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:05:44,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:05:44,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:05:44,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:05:44,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:05:44,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:05:44,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:05:44,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:05:44,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:05:44,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:05:44,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:05:44,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:05:44,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:05:44,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:05:44,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:05:44,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:05:44,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:05:44,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:05:44,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:05:44,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:05:44,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:05:44,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:05:44,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:05:44,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:05:44,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:05:44,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:05:44,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:05:44,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:05:44,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:05:44,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:05:44,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:05:44,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:05:44,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:05:44,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:05:44,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:05:44,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:05:44,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:05:44,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 09:05:44,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:05:44,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:05:44,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:05:44,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:05:44,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:05:44,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:05:44,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:05:44,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:05:44,755 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:05:44,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:05:44,757 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:05:44,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:05:44,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:05:44,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:05:44,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:05:44,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:05:44,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:05:44,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:05:44,759 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 09:05:44,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:05:44,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:05:44,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:05:44,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:05:44,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:05:44,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:05:44,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:05:44,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:05:44,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:05:44,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:05:44,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:05:44,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:05:44,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:05:44,764 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:05:44,765 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:05:44,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:05:44,765 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_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 [2022-11-21 09:05:45,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:05:45,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:05:45,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:05:45,154 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:05:45,155 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:05:45,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2022-11-21 09:05:48,891 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:05:49,152 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:05:49,153 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2022-11-21 09:05:49,163 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/data/171a3eded/09a28ab79c5b41b089b6b10017fa0408/FLAG0a8ea26de [2022-11-21 09:05:49,187 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/data/171a3eded/09a28ab79c5b41b089b6b10017fa0408 [2022-11-21 09:05:49,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:05:49,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:05:49,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:05:49,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:05:49,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:05:49,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:49,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22795cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49, skipping insertion in model container [2022-11-21 09:05:49,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:49,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:05:49,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:05:49,644 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_2684f69b-1b0a-43c9-af9d-9cffa287106d/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-11-21 09:05:49,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:05:49,682 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:05:49,826 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_2684f69b-1b0a-43c9-af9d-9cffa287106d/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-11-21 09:05:49,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:05:49,859 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:05:49,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49 WrapperNode [2022-11-21 09:05:49,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:05:49,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:05:49,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:05:49,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:05:49,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:49,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,025 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1305 [2022-11-21 09:05:50,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:05:50,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:05:50,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:05:50,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:05:50,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,164 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:05:50,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:05:50,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:05:50,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:05:50,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (1/1) ... [2022-11-21 09:05:50,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:05:50,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:50,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:50,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2684f69b-1b0a-43c9-af9d-9cffa287106d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:05:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:05:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:05:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:05:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:05:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 09:05:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 09:05:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 09:05:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 09:05:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 09:05:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 09:05:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:05:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:05:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:05:50,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:05:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:05:50,311 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 09:05:50,545 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:05:50,563 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:05:52,503 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:05:52,523 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:05:52,524 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-21 09:05:52,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:05:52 BoogieIcfgContainer [2022-11-21 09:05:52,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:05:52,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:05:52,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:05:52,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:05:52,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:05:49" (1/3) ... [2022-11-21 09:05:52,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e137b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:05:52, skipping insertion in model container [2022-11-21 09:05:52,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:49" (2/3) ... [2022-11-21 09:05:52,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e137b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:05:52, skipping insertion in model container [2022-11-21 09:05:52,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:05:52" (3/3) ... [2022-11-21 09:05:52,546 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2022-11-21 09:05:52,557 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 09:05:52,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:05:52,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 228 error locations. [2022-11-21 09:05:52,571 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:05:52,967 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 09:05:53,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1656 places, 1757 transitions, 3538 flow [2022-11-21 09:05:55,488 INFO L130 PetriNetUnfolder]: 111/1754 cut-off events. [2022-11-21 09:05:55,488 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 09:05:55,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 1754 events. 111/1754 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7798 event pairs, 0 based on Foata normal form. 0/1415 useless extension candidates. Maximal degree in co-relation 1382. Up to 2 conditions per place. [2022-11-21 09:05:55,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 1656 places, 1757 transitions, 3538 flow [2022-11-21 09:05:55,649 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1631 places, 1730 transitions, 3478 flow [2022-11-21 09:05:55,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:05:55,669 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;@258148f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:05:55,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2022-11-21 09:05:55,676 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-21 09:05:55,677 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:05:55,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:05:55,678 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] [2022-11-21 09:05:55,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:05:55,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:05:55,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1570181020, now seen corresponding path program 1 times [2022-11-21 09:05:55,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:05:55,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934494040] [2022-11-21 09:05:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:05:55,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:05:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:05:56,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:05:56,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934494040] [2022-11-21 09:05:56,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934494040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:05:56,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:05:56,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:05:56,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463488399] [2022-11-21 09:05:56,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:05:56,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:05:56,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:05:56,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:05:56,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:05:56,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-21 09:05:56,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1631 places, 1730 transitions, 3478 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:56,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:05:56,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-21 09:05:56,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:05:59,373 INFO L130 PetriNetUnfolder]: 145/2917 cut-off events. [2022-11-21 09:05:59,374 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-21 09:05:59,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 2917 events. 145/2917 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 18251 event pairs, 21 based on Foata normal form. 222/2566 useless extension candidates. Maximal degree in co-relation 2516. Up to 63 conditions per place. [2022-11-21 09:05:59,565 INFO L137 encePairwiseOnDemand]: 1718/1757 looper letters, 15 selfloop transitions, 2 changer transitions 6/1693 dead transitions. [2022-11-21 09:05:59,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1632 places, 1693 transitions, 3438 flow [2022-11-21 09:05:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:05:59,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:05:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5157 transitions. [2022-11-21 09:05:59,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9783722253841776 [2022-11-21 09:05:59,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5157 transitions. [2022-11-21 09:05:59,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5157 transitions. [2022-11-21 09:05:59,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:05:59,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5157 transitions. [2022-11-21 09:05:59,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1719.0) internal successors, (5157), 3 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:59,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:59,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:59,659 INFO L175 Difference]: Start difference. First operand has 1631 places, 1730 transitions, 3478 flow. Second operand 3 states and 5157 transitions. [2022-11-21 09:05:59,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1632 places, 1693 transitions, 3438 flow [2022-11-21 09:05:59,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1626 places, 1693 transitions, 3426 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 09:05:59,708 INFO L231 Difference]: Finished difference. Result has 1626 places, 1687 transitions, 3384 flow [2022-11-21 09:05:59,713 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3392, PETRI_DIFFERENCE_MINUEND_PLACES=1624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3384, PETRI_PLACES=1626, PETRI_TRANSITIONS=1687} [2022-11-21 09:05:59,718 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -5 predicate places. [2022-11-21 09:05:59,718 INFO L495 AbstractCegarLoop]: Abstraction has has 1626 places, 1687 transitions, 3384 flow [2022-11-21 09:05:59,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:59,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:05:59,722 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] [2022-11-21 09:05:59,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:05:59,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:05:59,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:05:59,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1234220149, now seen corresponding path program 1 times [2022-11-21 09:05:59,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:05:59,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735298379] [2022-11-21 09:05:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:05:59,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:05:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:59,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:05:59,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:05:59,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735298379] [2022-11-21 09:05:59,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735298379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:05:59,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:05:59,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:05:59,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135796690] [2022-11-21 09:05:59,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:05:59,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:05:59,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:05:59,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:05:59,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:05:59,822 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-21 09:05:59,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1626 places, 1687 transitions, 3384 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:59,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:05:59,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-21 09:05:59,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:02,500 INFO L130 PetriNetUnfolder]: 145/2938 cut-off events. [2022-11-21 09:06:02,500 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-21 09:06:02,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3016 conditions, 2938 events. 145/2938 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 18962 event pairs, 21 based on Foata normal form. 0/2372 useless extension candidates. Maximal degree in co-relation 2967. Up to 63 conditions per place. [2022-11-21 09:06:02,696 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1686 dead transitions. [2022-11-21 09:06:02,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1621 places, 1686 transitions, 3416 flow [2022-11-21 09:06:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:02,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:02,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-21 09:06:02,711 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-21 09:06:02,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-21 09:06:02,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-21 09:06:02,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:02,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-21 09:06:02,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:02,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:02,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:02,751 INFO L175 Difference]: Start difference. First operand has 1626 places, 1687 transitions, 3384 flow. Second operand 3 states and 5121 transitions. [2022-11-21 09:06:02,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1621 places, 1686 transitions, 3416 flow [2022-11-21 09:06:02,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1619 places, 1686 transitions, 3412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:02,785 INFO L231 Difference]: Finished difference. Result has 1619 places, 1686 transitions, 3382 flow [2022-11-21 09:06:02,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3378, PETRI_DIFFERENCE_MINUEND_PLACES=1617, 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=1619, PETRI_TRANSITIONS=1686} [2022-11-21 09:06:02,789 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -12 predicate places. [2022-11-21 09:06:02,789 INFO L495 AbstractCegarLoop]: Abstraction has has 1619 places, 1686 transitions, 3382 flow [2022-11-21 09:06:02,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:02,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:02,794 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] [2022-11-21 09:06:02,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:06:02,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:02,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:02,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1280258702, now seen corresponding path program 1 times [2022-11-21 09:06:02,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:02,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473750930] [2022-11-21 09:06:02,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:02,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:03,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:03,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473750930] [2022-11-21 09:06:03,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473750930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:03,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:03,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:03,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137415109] [2022-11-21 09:06:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:03,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:03,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:03,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:03,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:03,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-21 09:06:03,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1619 places, 1686 transitions, 3382 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:03,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:03,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-21 09:06:03,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:06,894 INFO L130 PetriNetUnfolder]: 209/3970 cut-off events. [2022-11-21 09:06:06,896 INFO L131 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2022-11-21 09:06:07,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4087 conditions, 3970 events. 209/3970 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 27694 event pairs, 39 based on Foata normal form. 0/3188 useless extension candidates. Maximal degree in co-relation 4031. Up to 90 conditions per place. [2022-11-21 09:06:07,166 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1685 dead transitions. [2022-11-21 09:06:07,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1620 places, 1685 transitions, 3414 flow [2022-11-21 09:06:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:07,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-21 09:06:07,185 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-21 09:06:07,185 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-21 09:06:07,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-21 09:06:07,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:07,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-21 09:06:07,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:07,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:07,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:07,224 INFO L175 Difference]: Start difference. First operand has 1619 places, 1686 transitions, 3382 flow. Second operand 3 states and 5121 transitions. [2022-11-21 09:06:07,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1620 places, 1685 transitions, 3414 flow [2022-11-21 09:06:07,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1618 places, 1685 transitions, 3410 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:07,269 INFO L231 Difference]: Finished difference. Result has 1618 places, 1685 transitions, 3380 flow [2022-11-21 09:06:07,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=1616, 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=1618, PETRI_TRANSITIONS=1685} [2022-11-21 09:06:07,275 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -13 predicate places. [2022-11-21 09:06:07,275 INFO L495 AbstractCegarLoop]: Abstraction has has 1618 places, 1685 transitions, 3380 flow [2022-11-21 09:06:07,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:07,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:07,278 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] [2022-11-21 09:06:07,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:06:07,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:07,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:07,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1121064490, now seen corresponding path program 1 times [2022-11-21 09:06:07,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:07,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634972276] [2022-11-21 09:06:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:07,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:07,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:07,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:07,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634972276] [2022-11-21 09:06:07,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634972276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:07,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:07,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:07,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480595698] [2022-11-21 09:06:07,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:07,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:07,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:07,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:07,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-21 09:06:07,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1618 places, 1685 transitions, 3380 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:07,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:07,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-21 09:06:07,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:10,480 INFO L130 PetriNetUnfolder]: 209/4013 cut-off events. [2022-11-21 09:06:10,480 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-21 09:06:10,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4130 conditions, 4013 events. 209/4013 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 29375 event pairs, 39 based on Foata normal form. 0/3232 useless extension candidates. Maximal degree in co-relation 4067. Up to 90 conditions per place. [2022-11-21 09:06:10,660 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1684 dead transitions. [2022-11-21 09:06:10,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1619 places, 1684 transitions, 3412 flow [2022-11-21 09:06:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:10,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-21 09:06:10,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-21 09:06:10,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-21 09:06:10,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-21 09:06:10,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:10,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-21 09:06:10,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:10,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:10,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:10,714 INFO L175 Difference]: Start difference. First operand has 1618 places, 1685 transitions, 3380 flow. Second operand 3 states and 5121 transitions. [2022-11-21 09:06:10,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1619 places, 1684 transitions, 3412 flow [2022-11-21 09:06:10,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1617 places, 1684 transitions, 3408 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:10,758 INFO L231 Difference]: Finished difference. Result has 1617 places, 1684 transitions, 3378 flow [2022-11-21 09:06:10,761 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3374, PETRI_DIFFERENCE_MINUEND_PLACES=1615, 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=1617, PETRI_TRANSITIONS=1684} [2022-11-21 09:06:10,762 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -14 predicate places. [2022-11-21 09:06:10,763 INFO L495 AbstractCegarLoop]: Abstraction has has 1617 places, 1684 transitions, 3378 flow [2022-11-21 09:06:10,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:10,766 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:10,766 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] [2022-11-21 09:06:10,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:06:10,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:10,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash -993125539, now seen corresponding path program 1 times [2022-11-21 09:06:10,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:10,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527596334] [2022-11-21 09:06:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:10,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:10,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:10,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527596334] [2022-11-21 09:06:10,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527596334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:10,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:10,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:10,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140600300] [2022-11-21 09:06:10,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:10,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:10,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:10,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:10,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:10,920 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-21 09:06:10,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1617 places, 1684 transitions, 3378 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:10,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:10,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-21 09:06:10,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:13,338 INFO L130 PetriNetUnfolder]: 140/2622 cut-off events. [2022-11-21 09:06:13,338 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-21 09:06:13,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 2622 events. 140/2622 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 16095 event pairs, 39 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 2654. Up to 90 conditions per place. [2022-11-21 09:06:13,459 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1683 dead transitions. [2022-11-21 09:06:13,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1618 places, 1683 transitions, 3410 flow [2022-11-21 09:06:13,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:13,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-21 09:06:13,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-21 09:06:13,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-21 09:06:13,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-21 09:06:13,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:13,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-21 09:06:13,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:13,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:13,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:13,503 INFO L175 Difference]: Start difference. First operand has 1617 places, 1684 transitions, 3378 flow. Second operand 3 states and 5121 transitions. [2022-11-21 09:06:13,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1618 places, 1683 transitions, 3410 flow [2022-11-21 09:06:13,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 1683 transitions, 3406 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:13,538 INFO L231 Difference]: Finished difference. Result has 1616 places, 1683 transitions, 3376 flow [2022-11-21 09:06:13,541 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3372, PETRI_DIFFERENCE_MINUEND_PLACES=1614, 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=1616, PETRI_TRANSITIONS=1683} [2022-11-21 09:06:13,542 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -15 predicate places. [2022-11-21 09:06:13,542 INFO L495 AbstractCegarLoop]: Abstraction has has 1616 places, 1683 transitions, 3376 flow [2022-11-21 09:06:13,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:13,544 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:13,545 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] [2022-11-21 09:06:13,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:06:13,545 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:13,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:13,546 INFO L85 PathProgramCache]: Analyzing trace with hash -154212185, now seen corresponding path program 1 times [2022-11-21 09:06:13,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:13,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222341465] [2022-11-21 09:06:13,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:13,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:13,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:13,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222341465] [2022-11-21 09:06:13,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222341465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:13,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:13,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:13,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382334133] [2022-11-21 09:06:13,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:13,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:13,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:13,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:13,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:13,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-21 09:06:13,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1616 places, 1683 transitions, 3376 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:13,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:13,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-21 09:06:13,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:15,709 INFO L130 PetriNetUnfolder]: 140/2665 cut-off events. [2022-11-21 09:06:15,710 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-21 09:06:15,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 2665 events. 140/2665 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 16965 event pairs, 39 based on Foata normal form. 0/2188 useless extension candidates. Maximal degree in co-relation 2690. Up to 90 conditions per place. [2022-11-21 09:06:15,846 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1682 dead transitions. [2022-11-21 09:06:15,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1617 places, 1682 transitions, 3408 flow [2022-11-21 09:06:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:15,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-21 09:06:15,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-21 09:06:15,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-21 09:06:15,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-21 09:06:15,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:15,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-21 09:06:15,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:15,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:15,905 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:15,905 INFO L175 Difference]: Start difference. First operand has 1616 places, 1683 transitions, 3376 flow. Second operand 3 states and 5121 transitions. [2022-11-21 09:06:15,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1617 places, 1682 transitions, 3408 flow [2022-11-21 09:06:15,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1615 places, 1682 transitions, 3404 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:15,951 INFO L231 Difference]: Finished difference. Result has 1615 places, 1682 transitions, 3374 flow [2022-11-21 09:06:15,955 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3370, PETRI_DIFFERENCE_MINUEND_PLACES=1613, 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=1615, PETRI_TRANSITIONS=1682} [2022-11-21 09:06:15,960 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -16 predicate places. [2022-11-21 09:06:15,961 INFO L495 AbstractCegarLoop]: Abstraction has has 1615 places, 1682 transitions, 3374 flow [2022-11-21 09:06:15,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:15,963 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:15,963 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] [2022-11-21 09:06:15,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:06:15,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:15,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:15,967 INFO L85 PathProgramCache]: Analyzing trace with hash -353115619, now seen corresponding path program 1 times [2022-11-21 09:06:15,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:15,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028092869] [2022-11-21 09:06:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:15,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:16,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:16,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028092869] [2022-11-21 09:06:16,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028092869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:16,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:16,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:16,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452495560] [2022-11-21 09:06:16,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:16,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:16,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:16,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:16,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:16,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-21 09:06:16,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1615 places, 1682 transitions, 3374 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:16,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:16,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-21 09:06:16,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:20,130 INFO L130 PetriNetUnfolder]: 349/5993 cut-off events. [2022-11-21 09:06:20,130 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-21 09:06:20,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6210 conditions, 5993 events. 349/5993 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 49288 event pairs, 54 based on Foata normal form. 0/4732 useless extension candidates. Maximal degree in co-relation 6126. Up to 154 conditions per place. [2022-11-21 09:06:20,415 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 39 selfloop transitions, 2 changer transitions 0/1681 dead transitions. [2022-11-21 09:06:20,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1616 places, 1681 transitions, 3454 flow [2022-11-21 09:06:20,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:20,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5073 transitions. [2022-11-21 09:06:20,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9624359704040979 [2022-11-21 09:06:20,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5073 transitions. [2022-11-21 09:06:20,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5073 transitions. [2022-11-21 09:06:20,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:20,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5073 transitions. [2022-11-21 09:06:20,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1691.0) internal successors, (5073), 3 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:20,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:20,458 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:20,458 INFO L175 Difference]: Start difference. First operand has 1615 places, 1682 transitions, 3374 flow. Second operand 3 states and 5073 transitions. [2022-11-21 09:06:20,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1616 places, 1681 transitions, 3454 flow [2022-11-21 09:06:20,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1614 places, 1681 transitions, 3450 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:20,494 INFO L231 Difference]: Finished difference. Result has 1614 places, 1681 transitions, 3372 flow [2022-11-21 09:06:20,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=1612, 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=1614, PETRI_TRANSITIONS=1681} [2022-11-21 09:06:20,498 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -17 predicate places. [2022-11-21 09:06:20,498 INFO L495 AbstractCegarLoop]: Abstraction has has 1614 places, 1681 transitions, 3372 flow [2022-11-21 09:06:20,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:20,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:20,500 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] [2022-11-21 09:06:20,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:06:20,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:20,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1165525904, now seen corresponding path program 1 times [2022-11-21 09:06:20,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:20,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898873680] [2022-11-21 09:06:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:20,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:20,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:20,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898873680] [2022-11-21 09:06:20,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898873680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:20,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:20,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:20,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220634971] [2022-11-21 09:06:20,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:20,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:20,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:20,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:20,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:20,563 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-21 09:06:20,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1614 places, 1681 transitions, 3372 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:20,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:20,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-21 09:06:20,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:23,592 INFO L130 PetriNetUnfolder]: 242/3331 cut-off events. [2022-11-21 09:06:23,592 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-21 09:06:23,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3666 conditions, 3331 events. 242/3331 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 23097 event pairs, 90 based on Foata normal form. 0/2666 useless extension candidates. Maximal degree in co-relation 3575. Up to 236 conditions per place. [2022-11-21 09:06:23,748 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1680 dead transitions. [2022-11-21 09:06:23,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1615 places, 1680 transitions, 3482 flow [2022-11-21 09:06:23,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:23,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-21 09:06:23,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-21 09:06:23,756 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-21 09:06:23,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-21 09:06:23,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:23,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-21 09:06:23,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:23,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:23,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:23,786 INFO L175 Difference]: Start difference. First operand has 1614 places, 1681 transitions, 3372 flow. Second operand 3 states and 5043 transitions. [2022-11-21 09:06:23,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1615 places, 1680 transitions, 3482 flow [2022-11-21 09:06:23,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1613 places, 1680 transitions, 3478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:23,821 INFO L231 Difference]: Finished difference. Result has 1613 places, 1680 transitions, 3370 flow [2022-11-21 09:06:23,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3366, PETRI_DIFFERENCE_MINUEND_PLACES=1611, 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=1613, PETRI_TRANSITIONS=1680} [2022-11-21 09:06:23,825 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -18 predicate places. [2022-11-21 09:06:23,825 INFO L495 AbstractCegarLoop]: Abstraction has has 1613 places, 1680 transitions, 3370 flow [2022-11-21 09:06:23,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:23,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:23,827 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] [2022-11-21 09:06:23,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:06:23,828 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:23,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:23,828 INFO L85 PathProgramCache]: Analyzing trace with hash 902807769, now seen corresponding path program 1 times [2022-11-21 09:06:23,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:23,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400472848] [2022-11-21 09:06:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:23,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:23,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:23,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400472848] [2022-11-21 09:06:23,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400472848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:23,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:23,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:23,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816853847] [2022-11-21 09:06:23,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:23,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:23,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:23,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:23,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:23,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-21 09:06:23,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1613 places, 1680 transitions, 3370 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:23,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:23,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-21 09:06:23,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:27,963 INFO L130 PetriNetUnfolder]: 257/4235 cut-off events. [2022-11-21 09:06:27,963 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-21 09:06:28,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4425 conditions, 4235 events. 257/4235 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 31231 event pairs, 54 based on Foata normal form. 0/3359 useless extension candidates. Maximal degree in co-relation 4327. Up to 154 conditions per place. [2022-11-21 09:06:28,262 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 39 selfloop transitions, 2 changer transitions 0/1679 dead transitions. [2022-11-21 09:06:28,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1614 places, 1679 transitions, 3450 flow [2022-11-21 09:06:28,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:28,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:28,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5073 transitions. [2022-11-21 09:06:28,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9624359704040979 [2022-11-21 09:06:28,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5073 transitions. [2022-11-21 09:06:28,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5073 transitions. [2022-11-21 09:06:28,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:28,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5073 transitions. [2022-11-21 09:06:28,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1691.0) internal successors, (5073), 3 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:28,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:28,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:28,302 INFO L175 Difference]: Start difference. First operand has 1613 places, 1680 transitions, 3370 flow. Second operand 3 states and 5073 transitions. [2022-11-21 09:06:28,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1614 places, 1679 transitions, 3450 flow [2022-11-21 09:06:28,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1612 places, 1679 transitions, 3446 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:28,347 INFO L231 Difference]: Finished difference. Result has 1612 places, 1679 transitions, 3368 flow [2022-11-21 09:06:28,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3364, PETRI_DIFFERENCE_MINUEND_PLACES=1610, 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=1612, PETRI_TRANSITIONS=1679} [2022-11-21 09:06:28,352 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -19 predicate places. [2022-11-21 09:06:28,353 INFO L495 AbstractCegarLoop]: Abstraction has has 1612 places, 1679 transitions, 3368 flow [2022-11-21 09:06:28,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:28,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:28,355 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] [2022-11-21 09:06:28,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:06:28,355 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:28,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:28,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1204950775, now seen corresponding path program 1 times [2022-11-21 09:06:28,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:28,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449643435] [2022-11-21 09:06:28,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:28,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:28,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:28,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449643435] [2022-11-21 09:06:28,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449643435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:28,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:28,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:28,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426717696] [2022-11-21 09:06:28,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:28,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:28,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:28,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:28,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:28,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-21 09:06:28,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1612 places, 1679 transitions, 3368 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:28,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:28,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-21 09:06:28,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:31,260 INFO L130 PetriNetUnfolder]: 219/2890 cut-off events. [2022-11-21 09:06:31,260 INFO L131 PetriNetUnfolder]: For 49/57 co-relation queries the response was YES. [2022-11-21 09:06:31,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3180 conditions, 2890 events. 219/2890 cut-off events. For 49/57 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 20631 event pairs, 90 based on Foata normal form. 0/2324 useless extension candidates. Maximal degree in co-relation 3075. Up to 236 conditions per place. [2022-11-21 09:06:31,422 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1678 dead transitions. [2022-11-21 09:06:31,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1613 places, 1678 transitions, 3478 flow [2022-11-21 09:06:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-21 09:06:31,436 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-21 09:06:31,437 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-21 09:06:31,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-21 09:06:31,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:31,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-21 09:06:31,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:31,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:31,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:31,457 INFO L175 Difference]: Start difference. First operand has 1612 places, 1679 transitions, 3368 flow. Second operand 3 states and 5043 transitions. [2022-11-21 09:06:31,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1613 places, 1678 transitions, 3478 flow [2022-11-21 09:06:31,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1611 places, 1678 transitions, 3474 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:31,490 INFO L231 Difference]: Finished difference. Result has 1611 places, 1678 transitions, 3366 flow [2022-11-21 09:06:31,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3362, PETRI_DIFFERENCE_MINUEND_PLACES=1609, 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=1611, PETRI_TRANSITIONS=1678} [2022-11-21 09:06:31,494 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -20 predicate places. [2022-11-21 09:06:31,494 INFO L495 AbstractCegarLoop]: Abstraction has has 1611 places, 1678 transitions, 3366 flow [2022-11-21 09:06:31,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:31,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:31,496 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] [2022-11-21 09:06:31,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 09:06:31,496 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:31,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:31,497 INFO L85 PathProgramCache]: Analyzing trace with hash -690707289, now seen corresponding path program 1 times [2022-11-21 09:06:31,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:31,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461581579] [2022-11-21 09:06:31,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:31,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:31,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:31,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461581579] [2022-11-21 09:06:31,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461581579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:31,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:31,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:31,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812090804] [2022-11-21 09:06:31,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:31,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:31,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:31,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:31,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:31,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-21 09:06:31,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1611 places, 1678 transitions, 3366 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:31,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:31,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-21 09:06:31,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:33,333 INFO L130 PetriNetUnfolder]: 165/2461 cut-off events. [2022-11-21 09:06:33,334 INFO L131 PetriNetUnfolder]: For 57/59 co-relation queries the response was YES. [2022-11-21 09:06:33,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 2461 events. 165/2461 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 14431 event pairs, 54 based on Foata normal form. 0/1979 useless extension candidates. Maximal degree in co-relation 2511. Up to 153 conditions per place. [2022-11-21 09:06:33,448 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 38 selfloop transitions, 2 changer transitions 0/1677 dead transitions. [2022-11-21 09:06:33,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1612 places, 1677 transitions, 3444 flow [2022-11-21 09:06:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5072 transitions. [2022-11-21 09:06:33,459 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9622462530829065 [2022-11-21 09:06:33,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5072 transitions. [2022-11-21 09:06:33,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5072 transitions. [2022-11-21 09:06:33,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:33,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5072 transitions. [2022-11-21 09:06:33,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1690.6666666666667) internal successors, (5072), 3 states have internal predecessors, (5072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:33,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:33,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:33,481 INFO L175 Difference]: Start difference. First operand has 1611 places, 1678 transitions, 3366 flow. Second operand 3 states and 5072 transitions. [2022-11-21 09:06:33,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1612 places, 1677 transitions, 3444 flow [2022-11-21 09:06:33,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1610 places, 1677 transitions, 3440 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:33,513 INFO L231 Difference]: Finished difference. Result has 1610 places, 1677 transitions, 3364 flow [2022-11-21 09:06:33,516 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3360, PETRI_DIFFERENCE_MINUEND_PLACES=1608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3364, PETRI_PLACES=1610, PETRI_TRANSITIONS=1677} [2022-11-21 09:06:33,517 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -21 predicate places. [2022-11-21 09:06:33,517 INFO L495 AbstractCegarLoop]: Abstraction has has 1610 places, 1677 transitions, 3364 flow [2022-11-21 09:06:33,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:33,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:33,519 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] [2022-11-21 09:06:33,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:06:33,520 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:33,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:33,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1492992374, now seen corresponding path program 1 times [2022-11-21 09:06:33,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:33,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192634863] [2022-11-21 09:06:33,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:33,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:33,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:33,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192634863] [2022-11-21 09:06:33,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192634863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:33,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:33,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:33,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269968376] [2022-11-21 09:06:33,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:33,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:33,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:33,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:33,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:33,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-21 09:06:33,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1610 places, 1677 transitions, 3364 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:33,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:33,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-21 09:06:33,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:35,664 INFO L130 PetriNetUnfolder]: 196/2429 cut-off events. [2022-11-21 09:06:35,664 INFO L131 PetriNetUnfolder]: For 94/96 co-relation queries the response was YES. [2022-11-21 09:06:35,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2674 conditions, 2429 events. 196/2429 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16871 event pairs, 90 based on Foata normal form. 0/1964 useless extension candidates. Maximal degree in co-relation 2555. Up to 236 conditions per place. [2022-11-21 09:06:35,833 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1676 dead transitions. [2022-11-21 09:06:35,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1611 places, 1676 transitions, 3474 flow [2022-11-21 09:06:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-21 09:06:35,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-21 09:06:35,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-21 09:06:35,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-21 09:06:35,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:35,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-21 09:06:35,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:35,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:35,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:35,868 INFO L175 Difference]: Start difference. First operand has 1610 places, 1677 transitions, 3364 flow. Second operand 3 states and 5043 transitions. [2022-11-21 09:06:35,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1611 places, 1676 transitions, 3474 flow [2022-11-21 09:06:35,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1609 places, 1676 transitions, 3470 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:35,911 INFO L231 Difference]: Finished difference. Result has 1609 places, 1676 transitions, 3362 flow [2022-11-21 09:06:35,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3358, PETRI_DIFFERENCE_MINUEND_PLACES=1607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3362, PETRI_PLACES=1609, PETRI_TRANSITIONS=1676} [2022-11-21 09:06:35,914 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -22 predicate places. [2022-11-21 09:06:35,914 INFO L495 AbstractCegarLoop]: Abstraction has has 1609 places, 1676 transitions, 3362 flow [2022-11-21 09:06:35,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:35,916 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:35,916 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] [2022-11-21 09:06:35,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 09:06:35,917 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:35,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:35,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2086153921, now seen corresponding path program 1 times [2022-11-21 09:06:35,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:35,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253021293] [2022-11-21 09:06:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:35,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:35,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:35,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253021293] [2022-11-21 09:06:35,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253021293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:35,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:35,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:35,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258516271] [2022-11-21 09:06:35,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:35,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:35,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:35,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:35,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:35,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-11-21 09:06:36,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1609 places, 1676 transitions, 3362 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) [2022-11-21 09:06:36,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:36,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-11-21 09:06:36,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:43,617 INFO L130 PetriNetUnfolder]: 661/9322 cut-off events. [2022-11-21 09:06:43,617 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-21 09:06:43,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9783 conditions, 9322 events. 661/9322 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 91913 event pairs, 192 based on Foata normal form. 0/7323 useless extension candidates. Maximal degree in co-relation 9657. Up to 428 conditions per place. [2022-11-21 09:06:44,185 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 33 selfloop transitions, 2 changer transitions 0/1675 dead transitions. [2022-11-21 09:06:44,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1610 places, 1675 transitions, 3430 flow [2022-11-21 09:06:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:44,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-21 09:06:44,192 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964712578258395 [2022-11-21 09:06:44,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-21 09:06:44,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-21 09:06:44,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:44,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-21 09:06:44,201 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) [2022-11-21 09:06:44,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:44,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:44,210 INFO L175 Difference]: Start difference. First operand has 1609 places, 1676 transitions, 3362 flow. Second operand 3 states and 5085 transitions. [2022-11-21 09:06:44,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1610 places, 1675 transitions, 3430 flow [2022-11-21 09:06:44,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1608 places, 1675 transitions, 3426 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:44,243 INFO L231 Difference]: Finished difference. Result has 1608 places, 1675 transitions, 3360 flow [2022-11-21 09:06:44,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3356, PETRI_DIFFERENCE_MINUEND_PLACES=1606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1673, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3360, PETRI_PLACES=1608, PETRI_TRANSITIONS=1675} [2022-11-21 09:06:44,246 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -23 predicate places. [2022-11-21 09:06:44,246 INFO L495 AbstractCegarLoop]: Abstraction has has 1608 places, 1675 transitions, 3360 flow [2022-11-21 09:06:44,247 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) [2022-11-21 09:06:44,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:44,248 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] [2022-11-21 09:06:44,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:06:44,249 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:44,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:44,249 INFO L85 PathProgramCache]: Analyzing trace with hash 463280671, now seen corresponding path program 1 times [2022-11-21 09:06:44,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:44,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894256243] [2022-11-21 09:06:44,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:44,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:44,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:44,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894256243] [2022-11-21 09:06:44,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894256243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:44,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:44,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:44,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794343716] [2022-11-21 09:06:44,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:44,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:44,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:44,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:44,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:44,321 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-11-21 09:06:44,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1608 places, 1675 transitions, 3360 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) [2022-11-21 09:06:44,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:44,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-11-21 09:06:44,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:06:54,294 INFO L130 PetriNetUnfolder]: 1279/15206 cut-off events. [2022-11-21 09:06:54,294 INFO L131 PetriNetUnfolder]: For 33/47 co-relation queries the response was YES. [2022-11-21 09:06:54,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16315 conditions, 15206 events. 1279/15206 cut-off events. For 33/47 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 174862 event pairs, 480 based on Foata normal form. 0/11918 useless extension candidates. Maximal degree in co-relation 16183. Up to 920 conditions per place. [2022-11-21 09:06:55,039 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 33 selfloop transitions, 2 changer transitions 0/1674 dead transitions. [2022-11-21 09:06:55,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1609 places, 1674 transitions, 3428 flow [2022-11-21 09:06:55,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:06:55,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-21 09:06:55,047 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964712578258395 [2022-11-21 09:06:55,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-21 09:06:55,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-21 09:06:55,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:06:55,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-21 09:06:55,059 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) [2022-11-21 09:06:55,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:55,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:55,068 INFO L175 Difference]: Start difference. First operand has 1608 places, 1675 transitions, 3360 flow. Second operand 3 states and 5085 transitions. [2022-11-21 09:06:55,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1609 places, 1674 transitions, 3428 flow [2022-11-21 09:06:55,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1607 places, 1674 transitions, 3424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:06:55,101 INFO L231 Difference]: Finished difference. Result has 1607 places, 1674 transitions, 3358 flow [2022-11-21 09:06:55,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3354, PETRI_DIFFERENCE_MINUEND_PLACES=1605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3358, PETRI_PLACES=1607, PETRI_TRANSITIONS=1674} [2022-11-21 09:06:55,104 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -24 predicate places. [2022-11-21 09:06:55,104 INFO L495 AbstractCegarLoop]: Abstraction has has 1607 places, 1674 transitions, 3358 flow [2022-11-21 09:06:55,106 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) [2022-11-21 09:06:55,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:06:55,106 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] [2022-11-21 09:06:55,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 09:06:55,107 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-21 09:06:55,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:55,108 INFO L85 PathProgramCache]: Analyzing trace with hash 610025969, now seen corresponding path program 1 times [2022-11-21 09:06:55,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:06:55,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531770029] [2022-11-21 09:06:55,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:55,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:06:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:55,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:55,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:06:55,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531770029] [2022-11-21 09:06:55,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531770029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:55,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:55,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:55,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607073715] [2022-11-21 09:06:55,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:55,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:55,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:06:55,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:55,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:55,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-11-21 09:06:55,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1607 places, 1674 transitions, 3358 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) [2022-11-21 09:06:55,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:06:55,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-11-21 09:06:55,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand