./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2b-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2b-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8 --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 ac3e81ad3f9db95a5de1f98d474d0156e76fb4d993d4f8e52a09f0c02342da59 --- 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-e04fb08 [2022-11-16 11:56:51,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:56:51,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:56:51,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:56:51,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:56:51,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:56:51,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:56:51,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:56:51,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:56:51,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:56:51,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:56:51,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:56:51,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:56:51,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:56:51,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:56:51,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:56:51,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:56:51,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:56:51,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:56:51,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:56:51,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:56:51,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:56:51,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:56:51,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:56:51,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:56:51,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:56:51,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:56:51,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:56:51,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:56:51,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:56:51,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:56:51,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:56:51,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:56:51,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:56:51,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:56:51,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:56:51,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:56:51,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:56:51,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:56:51,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:56:51,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:56:51,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:56:51,983 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:56:51,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:56:51,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:56:51,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:56:51,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:56:51,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:56:51,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:56:51,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:56:51,987 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:56:51,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:56:51,988 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:56:51,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:56:51,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:56:51,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:56:51,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:56:51,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:56:51,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:56:51,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:56:51,991 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:56:51,991 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:56:51,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:56:51,991 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:56:51,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:56:52,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:56:52,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:56:52,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:56:52,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:56:52,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:56:52,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:56:52,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:56:52,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:56:52,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:56:52,005 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:56:52,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:56:52,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:56:52,007 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_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac3e81ad3f9db95a5de1f98d474d0156e76fb4d993d4f8e52a09f0c02342da59 [2022-11-16 11:56:52,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:56:52,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:56:52,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:56:52,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:56:52,439 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:56:52,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-3_2b-container_of-global.i [2022-11-16 11:56:52,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/data/d5466701d/d27bdffe21c1400db224781b13c81fec/FLAG9b0373427 [2022-11-16 11:56:53,358 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:56:53,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/sv-benchmarks/c/ldv-races/race-3_2b-container_of-global.i [2022-11-16 11:56:53,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/data/d5466701d/d27bdffe21c1400db224781b13c81fec/FLAG9b0373427 [2022-11-16 11:56:53,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/data/d5466701d/d27bdffe21c1400db224781b13c81fec [2022-11-16 11:56:53,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:56:53,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:56:53,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:56:53,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:56:53,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:56:53,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:53" (1/1) ... [2022-11-16 11:56:53,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e128cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:53, skipping insertion in model container [2022-11-16 11:56:53,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:53" (1/1) ... [2022-11-16 11:56:53,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:56:53,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:56:54,451 WARN L229 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_a792c228-9ea0-4330-9542-e9803869b806/sv-benchmarks/c/ldv-races/race-3_2b-container_of-global.i[76084,76097] [2022-11-16 11:56:54,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:56:54,547 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:56:54,638 WARN L229 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_a792c228-9ea0-4330-9542-e9803869b806/sv-benchmarks/c/ldv-races/race-3_2b-container_of-global.i[76084,76097] [2022-11-16 11:56:54,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:56:54,899 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:56:54,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54 WrapperNode [2022-11-16 11:56:54,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:56:54,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:56:54,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:56:54,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:56:54,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:54,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,038 INFO L138 Inliner]: procedures = 481, calls = 45, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 206 [2022-11-16 11:56:55,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:56:55,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:56:55,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:56:55,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:56:55,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:56:55,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:56:55,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:56:55,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:56:55,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (1/1) ... [2022-11-16 11:56:55,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:56:55,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:56:55,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:56:55,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a792c228-9ea0-4330-9542-e9803869b806/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:56:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:56:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:56:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:56:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:56:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:56:55,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:56:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 11:56:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 11:56:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:56:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:56:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:56:55,266 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:56:55,740 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:56:55,742 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:56:56,377 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:56:56,389 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:56:56,389 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:56:56,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:56:56 BoogieIcfgContainer [2022-11-16 11:56:56,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:56:56,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:56:56,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:56:56,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:56:56,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:56:53" (1/3) ... [2022-11-16 11:56:56,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163fa28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:56, skipping insertion in model container [2022-11-16 11:56:56,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:54" (2/3) ... [2022-11-16 11:56:56,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163fa28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:56, skipping insertion in model container [2022-11-16 11:56:56,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:56:56" (3/3) ... [2022-11-16 11:56:56,405 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2b-container_of-global.i [2022-11-16 11:56:56,414 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:56:56,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:56:56,426 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-16 11:56:56,426 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:56:56,537 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:56:56,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 317 transitions, 650 flow [2022-11-16 11:56:56,772 INFO L130 PetriNetUnfolder]: 10/394 cut-off events. [2022-11-16 11:56:56,774 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:56:56,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 394 events. 10/394 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 795 event pairs, 0 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 226. Up to 4 conditions per place. [2022-11-16 11:56:56,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 315 places, 317 transitions, 650 flow [2022-11-16 11:56:56,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 313 places, 314 transitions, 640 flow [2022-11-16 11:56:56,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:56:56,839 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;@218cef7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:56:56,839 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-16 11:56:56,848 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-16 11:56:56,851 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:56:56,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:56:56,852 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] [2022-11-16 11:56:56,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 11:56:56,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:56,861 INFO L85 PathProgramCache]: Analyzing trace with hash -785167146, now seen corresponding path program 1 times [2022-11-16 11:56:56,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:56,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289376874] [2022-11-16 11:56:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:56,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:58,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:56:58,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:58,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289376874] [2022-11-16 11:56:58,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289376874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:58,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:58,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:56:58,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289350873] [2022-11-16 11:56:58,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:58,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:56:58,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:58,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:56:58,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:56:58,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 317 [2022-11-16 11:56:58,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 314 transitions, 640 flow. Second operand has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:58,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:56:58,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 317 [2022-11-16 11:56:58,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:08,820 INFO L130 PetriNetUnfolder]: 20989/44085 cut-off events. [2022-11-16 11:57:08,821 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2022-11-16 11:57:08,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76556 conditions, 44085 events. 20989/44085 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 430434 event pairs, 20988 based on Foata normal form. 612/38401 useless extension candidates. Maximal degree in co-relation 75660. Up to 32403 conditions per place. [2022-11-16 11:57:09,300 INFO L137 encePairwiseOnDemand]: 305/317 looper letters, 116 selfloop transitions, 5 changer transitions 4/301 dead transitions. [2022-11-16 11:57:09,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 301 transitions, 856 flow [2022-11-16 11:57:09,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:57:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:57:09,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1226 transitions. [2022-11-16 11:57:09,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6445846477392219 [2022-11-16 11:57:09,335 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1226 transitions. [2022-11-16 11:57:09,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1226 transitions. [2022-11-16 11:57:09,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:09,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1226 transitions. [2022-11-16 11:57:09,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.33333333333334) internal successors, (1226), 6 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:09,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:09,369 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:09,371 INFO L175 Difference]: Start difference. First operand has 313 places, 314 transitions, 640 flow. Second operand 6 states and 1226 transitions. [2022-11-16 11:57:09,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 301 transitions, 856 flow [2022-11-16 11:57:09,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 301 transitions, 848 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:57:09,411 INFO L231 Difference]: Finished difference. Result has 307 places, 297 transitions, 608 flow [2022-11-16 11:57:09,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=608, PETRI_PLACES=307, PETRI_TRANSITIONS=297} [2022-11-16 11:57:09,419 INFO L288 CegarLoopForPetriNet]: 313 programPoint places, -6 predicate places. [2022-11-16 11:57:09,420 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 297 transitions, 608 flow [2022-11-16 11:57:09,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:09,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:09,421 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] [2022-11-16 11:57:09,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:57:09,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 11:57:09,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:09,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1349531943, now seen corresponding path program 1 times [2022-11-16 11:57:09,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:09,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870368059] [2022-11-16 11:57:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:09,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:09,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:09,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870368059] [2022-11-16 11:57:09,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870368059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:09,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:09,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:57:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270519075] [2022-11-16 11:57:09,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:09,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:57:09,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:09,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:57:09,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:57:09,983 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 317 [2022-11-16 11:57:09,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 297 transitions, 608 flow. Second operand has 6 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:09,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:09,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 317 [2022-11-16 11:57:09,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:18,105 INFO L130 PetriNetUnfolder]: 20989/44080 cut-off events. [2022-11-16 11:57:18,105 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-16 11:57:18,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76514 conditions, 44080 events. 20989/44080 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 430344 event pairs, 20988 based on Foata normal form. 0/37789 useless extension candidates. Maximal degree in co-relation 76453. Up to 32402 conditions per place. [2022-11-16 11:57:18,352 INFO L137 encePairwiseOnDemand]: 311/317 looper letters, 115 selfloop transitions, 5 changer transitions 0/296 dead transitions. [2022-11-16 11:57:18,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 296 transitions, 846 flow [2022-11-16 11:57:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:57:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:57:18,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1219 transitions. [2022-11-16 11:57:18,358 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6409043112513144 [2022-11-16 11:57:18,359 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1219 transitions. [2022-11-16 11:57:18,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1219 transitions. [2022-11-16 11:57:18,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:18,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1219 transitions. [2022-11-16 11:57:18,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:18,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:18,372 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:18,373 INFO L175 Difference]: Start difference. First operand has 307 places, 297 transitions, 608 flow. Second operand 6 states and 1219 transitions. [2022-11-16 11:57:18,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 296 transitions, 846 flow [2022-11-16 11:57:18,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 296 transitions, 836 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:57:18,383 INFO L231 Difference]: Finished difference. Result has 302 places, 296 transitions, 606 flow [2022-11-16 11:57:18,384 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=606, PETRI_PLACES=302, PETRI_TRANSITIONS=296} [2022-11-16 11:57:18,386 INFO L288 CegarLoopForPetriNet]: 313 programPoint places, -11 predicate places. [2022-11-16 11:57:18,386 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 296 transitions, 606 flow [2022-11-16 11:57:18,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:18,388 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:18,388 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] [2022-11-16 11:57:18,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:57:18,389 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 11:57:18,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:18,390 INFO L85 PathProgramCache]: Analyzing trace with hash -712432881, now seen corresponding path program 1 times [2022-11-16 11:57:18,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:18,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226775312] [2022-11-16 11:57:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:18,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:19,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:19,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226775312] [2022-11-16 11:57:19,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226775312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:19,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:19,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:57:19,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407641945] [2022-11-16 11:57:19,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:19,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:57:19,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:19,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:57:19,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:57:19,035 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 317 [2022-11-16 11:57:19,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 296 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:19,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:19,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 317 [2022-11-16 11:57:19,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:26,005 INFO L130 PetriNetUnfolder]: 20989/44072 cut-off events. [2022-11-16 11:57:26,005 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-16 11:57:26,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76504 conditions, 44072 events. 20989/44072 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 430823 event pairs, 18324 based on Foata normal form. 0/37829 useless extension candidates. Maximal degree in co-relation 76429. Up to 32378 conditions per place. [2022-11-16 11:57:26,290 INFO L137 encePairwiseOnDemand]: 309/317 looper letters, 120 selfloop transitions, 7 changer transitions 0/305 dead transitions. [2022-11-16 11:57:26,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 305 transitions, 879 flow [2022-11-16 11:57:26,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:57:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:57:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1238 transitions. [2022-11-16 11:57:26,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.650893796004206 [2022-11-16 11:57:26,297 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1238 transitions. [2022-11-16 11:57:26,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1238 transitions. [2022-11-16 11:57:26,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:26,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1238 transitions. [2022-11-16 11:57:26,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:26,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:26,311 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:26,312 INFO L175 Difference]: Start difference. First operand has 302 places, 296 transitions, 606 flow. Second operand 6 states and 1238 transitions. [2022-11-16 11:57:26,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 305 transitions, 879 flow [2022-11-16 11:57:26,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 305 transitions, 869 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:57:26,321 INFO L231 Difference]: Finished difference. Result has 302 places, 298 transitions, 624 flow [2022-11-16 11:57:26,322 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=624, PETRI_PLACES=302, PETRI_TRANSITIONS=298} [2022-11-16 11:57:26,325 INFO L288 CegarLoopForPetriNet]: 313 programPoint places, -11 predicate places. [2022-11-16 11:57:26,325 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 298 transitions, 624 flow [2022-11-16 11:57:26,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:26,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:26,327 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] [2022-11-16 11:57:26,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:57:26,327 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 11:57:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:26,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1867893616, now seen corresponding path program 1 times [2022-11-16 11:57:26,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:26,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686689208] [2022-11-16 11:57:26,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:26,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:26,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686689208] [2022-11-16 11:57:26,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686689208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:26,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:26,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:57:26,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941411669] [2022-11-16 11:57:26,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:26,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:57:26,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:26,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:57:26,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:57:26,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 317 [2022-11-16 11:57:26,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 298 transitions, 624 flow. Second operand has 6 states, 6 states have (on average 189.5) internal successors, (1137), 6 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:26,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:26,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 317 [2022-11-16 11:57:26,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:33,532 INFO L130 PetriNetUnfolder]: 20989/44097 cut-off events. [2022-11-16 11:57:33,533 INFO L131 PetriNetUnfolder]: For 1525/1543 co-relation queries the response was YES. [2022-11-16 11:57:33,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78094 conditions, 44097 events. 20989/44097 cut-off events. For 1525/1543 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 431680 event pairs, 18324 based on Foata normal form. 2/37856 useless extension candidates. Maximal degree in co-relation 60367. Up to 32384 conditions per place. [2022-11-16 11:57:33,734 INFO L137 encePairwiseOnDemand]: 309/317 looper letters, 119 selfloop transitions, 7 changer transitions 0/304 dead transitions. [2022-11-16 11:57:33,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 304 transitions, 889 flow [2022-11-16 11:57:33,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:57:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:57:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1237 transitions. [2022-11-16 11:57:33,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6503680336487907 [2022-11-16 11:57:33,739 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1237 transitions. [2022-11-16 11:57:33,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1237 transitions. [2022-11-16 11:57:33,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:33,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1237 transitions. [2022-11-16 11:57:33,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.16666666666666) internal successors, (1237), 6 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:33,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:33,749 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:33,750 INFO L175 Difference]: Start difference. First operand has 302 places, 298 transitions, 624 flow. Second operand 6 states and 1237 transitions. [2022-11-16 11:57:33,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 304 transitions, 889 flow [2022-11-16 11:57:33,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 304 transitions, 879 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:57:33,757 INFO L231 Difference]: Finished difference. Result has 302 places, 297 transitions, 626 flow [2022-11-16 11:57:33,757 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=626, PETRI_PLACES=302, PETRI_TRANSITIONS=297} [2022-11-16 11:57:33,758 INFO L288 CegarLoopForPetriNet]: 313 programPoint places, -11 predicate places. [2022-11-16 11:57:33,759 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 297 transitions, 626 flow [2022-11-16 11:57:33,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.5) internal successors, (1137), 6 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:33,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:33,760 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] [2022-11-16 11:57:33,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:57:33,760 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 11:57:33,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:33,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1341299668, now seen corresponding path program 1 times [2022-11-16 11:57:33,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:33,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402710381] [2022-11-16 11:57:33,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:33,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:33,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:33,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402710381] [2022-11-16 11:57:33,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402710381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:33,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:33,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:57:33,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912021797] [2022-11-16 11:57:33,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:33,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:57:33,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:33,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:57:33,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:57:33,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 317 [2022-11-16 11:57:33,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 297 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:33,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:33,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 317 [2022-11-16 11:57:33,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:34,069 INFO L130 PetriNetUnfolder]: 25/810 cut-off events. [2022-11-16 11:57:34,070 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 11:57:34,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 810 events. 25/810 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4117 event pairs, 16 based on Foata normal form. 0/719 useless extension candidates. Maximal degree in co-relation 318. Up to 44 conditions per place. [2022-11-16 11:57:34,078 INFO L137 encePairwiseOnDemand]: 314/317 looper letters, 13 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-11-16 11:57:34,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 296 transitions, 654 flow [2022-11-16 11:57:34,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:57:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:57:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 883 transitions. [2022-11-16 11:57:34,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9284963196635121 [2022-11-16 11:57:34,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 883 transitions. [2022-11-16 11:57:34,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 883 transitions. [2022-11-16 11:57:34,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:34,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 883 transitions. [2022-11-16 11:57:34,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,092 INFO L175 Difference]: Start difference. First operand has 302 places, 297 transitions, 626 flow. Second operand 3 states and 883 transitions. [2022-11-16 11:57:34,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 296 transitions, 654 flow [2022-11-16 11:57:34,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 296 transitions, 640 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:57:34,098 INFO L231 Difference]: Finished difference. Result has 298 places, 296 transitions, 614 flow [2022-11-16 11:57:34,099 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=298, PETRI_TRANSITIONS=296} [2022-11-16 11:57:34,102 INFO L288 CegarLoopForPetriNet]: 313 programPoint places, -15 predicate places. [2022-11-16 11:57:34,103 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 296 transitions, 614 flow [2022-11-16 11:57:34,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:34,104 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] [2022-11-16 11:57:34,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:57:34,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 11:57:34,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:34,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1537527803, now seen corresponding path program 1 times [2022-11-16 11:57:34,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:34,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21065450] [2022-11-16 11:57:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:34,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:34,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:34,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:34,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21065450] [2022-11-16 11:57:34,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21065450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:34,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:34,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:57:34,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548806808] [2022-11-16 11:57:34,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:34,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:57:34,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:34,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:57:34,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:57:34,222 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 317 [2022-11-16 11:57:34,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 296 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 293.6666666666667) internal successors, (881), 3 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:34,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 317 [2022-11-16 11:57:34,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:34,364 INFO L130 PetriNetUnfolder]: 16/868 cut-off events. [2022-11-16 11:57:34,364 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:57:34,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 868 events. 16/868 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4090 event pairs, 6 based on Foata normal form. 0/783 useless extension candidates. Maximal degree in co-relation 757. Up to 27 conditions per place. [2022-11-16 11:57:34,371 INFO L137 encePairwiseOnDemand]: 313/317 looper letters, 11 selfloop transitions, 2 changer transitions 0/297 dead transitions. [2022-11-16 11:57:34,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 297 transitions, 643 flow [2022-11-16 11:57:34,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:57:34,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:57:34,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 891 transitions. [2022-11-16 11:57:34,374 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9369085173501577 [2022-11-16 11:57:34,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 891 transitions. [2022-11-16 11:57:34,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 891 transitions. [2022-11-16 11:57:34,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:34,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 891 transitions. [2022-11-16 11:57:34,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,381 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,381 INFO L175 Difference]: Start difference. First operand has 298 places, 296 transitions, 614 flow. Second operand 3 states and 891 transitions. [2022-11-16 11:57:34,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 297 transitions, 643 flow [2022-11-16 11:57:34,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 297 transitions, 639 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:57:34,387 INFO L231 Difference]: Finished difference. Result has 297 places, 296 transitions, 620 flow [2022-11-16 11:57:34,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=297, PETRI_TRANSITIONS=296} [2022-11-16 11:57:34,389 INFO L288 CegarLoopForPetriNet]: 313 programPoint places, -16 predicate places. [2022-11-16 11:57:34,389 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 296 transitions, 620 flow [2022-11-16 11:57:34,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 293.6666666666667) internal successors, (881), 3 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:34,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:34,390 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] [2022-11-16 11:57:34,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:57:34,390 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 11:57:34,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:34,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1704570875, now seen corresponding path program 1 times [2022-11-16 11:57:34,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:34,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087501921] [2022-11-16 11:57:34,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:34,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:34,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:34,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087501921] [2022-11-16 11:57:34,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087501921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:34,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:34,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:57:35,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617845320] [2022-11-16 11:57:35,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:35,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:57:35,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:35,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:57:35,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:57:35,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 317 [2022-11-16 11:57:35,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 296 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:57:35,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:35,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 317 [2022-11-16 11:57:35,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand