./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:17:23,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:17:23,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:17:23,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:17:23,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:17:23,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:17:23,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:17:23,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:17:23,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:17:23,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:17:23,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:17:23,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:17:23,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:17:23,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:17:23,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:17:23,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:17:23,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:17:23,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:17:23,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:17:23,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:17:23,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:17:23,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:17:23,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:17:23,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:17:23,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:17:23,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:17:23,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:17:23,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:17:23,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:17:23,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:17:23,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:17:23,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:17:23,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:17:23,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:17:23,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:17:23,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:17:23,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:17:23,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:17:23,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:17:23,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:17:23,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:17:23,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:17:23,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:17:23,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:17:23,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:17:23,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:17:23,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:17:23,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:17:23,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:17:23,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:17:23,963 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:17:23,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:17:23,964 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:17:23,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:17:23,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:17:23,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:17:23,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:17:23,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:17:23,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:17:23,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:17:23,967 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:17:23,967 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:17:23,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:17:23,968 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:17:23,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:17:23,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:17:23,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:17:23,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:17:23,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:17:23,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:17:23,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:17:23,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:17:23,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:17:23,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:17:23,972 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:17:23,972 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:17:23,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:17:23,972 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_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d [2022-11-20 11:17:24,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:17:24,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:17:24,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:17:24,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:17:24,387 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:17:24,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2022-11-20 11:17:28,049 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:17:28,271 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:17:28,272 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2022-11-20 11:17:28,283 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/data/3cb47e665/3f5167bff7b3475a9dbf26083803f1c2/FLAG029ccf78d [2022-11-20 11:17:28,297 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/data/3cb47e665/3f5167bff7b3475a9dbf26083803f1c2 [2022-11-20 11:17:28,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:17:28,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:17:28,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:17:28,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:17:28,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:17:28,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a848383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28, skipping insertion in model container [2022-11-20 11:17:28,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:17:28,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:17:28,608 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_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2022-11-20 11:17:28,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:17:28,626 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:17:28,680 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_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2022-11-20 11:17:28,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:17:28,701 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:17:28,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28 WrapperNode [2022-11-20 11:17:28,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:17:28,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:17:28,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:17:28,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:17:28,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,818 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 850 [2022-11-20 11:17:28,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:17:28,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:17:28,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:17:28,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:17:28,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,877 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:17:28,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:17:28,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:17:28,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:17:28,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (1/1) ... [2022-11-20 11:17:28,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:17:28,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:17:28,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:17:28,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c0e414-ccbe-45f4-a4d6-9128640a4ca3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:17:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:17:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:17:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:17:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:17:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:17:28,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:17:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:17:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:17:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:17:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:17:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:17:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:17:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:17:28,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:17:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:17:29,000 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:17:29,236 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:17:29,238 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:17:30,407 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:17:30,433 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:17:30,433 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 11:17:30,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:30 BoogieIcfgContainer [2022-11-20 11:17:30,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:17:30,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:17:30,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:17:30,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:17:30,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:17:28" (1/3) ... [2022-11-20 11:17:30,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da1f374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:17:30, skipping insertion in model container [2022-11-20 11:17:30,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:28" (2/3) ... [2022-11-20 11:17:30,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da1f374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:17:30, skipping insertion in model container [2022-11-20 11:17:30,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:30" (3/3) ... [2022-11-20 11:17:30,449 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2022-11-20 11:17:30,460 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:17:30,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:17:30,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2022-11-20 11:17:30,470 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:17:30,697 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:17:30,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1063 places, 1111 transitions, 2246 flow [2022-11-20 11:17:31,656 INFO L130 PetriNetUnfolder]: 58/1108 cut-off events. [2022-11-20 11:17:31,657 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:17:31,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 1108 events. 58/1108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3896 event pairs, 0 based on Foata normal form. 0/898 useless extension candidates. Maximal degree in co-relation 851. Up to 2 conditions per place. [2022-11-20 11:17:31,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 1063 places, 1111 transitions, 2246 flow [2022-11-20 11:17:31,752 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1038 places, 1084 transitions, 2186 flow [2022-11-20 11:17:31,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:17:31,768 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;@37239cf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:17:31,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 284 error locations. [2022-11-20 11:17:31,773 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-20 11:17:31,774 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:17:31,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:31,775 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] [2022-11-20 11:17:31,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:17:31,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1040582299, now seen corresponding path program 1 times [2022-11-20 11:17:31,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:31,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646424489] [2022-11-20 11:17:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:31,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:32,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:32,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646424489] [2022-11-20 11:17:32,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646424489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:32,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:32,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:32,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586640992] [2022-11-20 11:17:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:32,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:32,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:32,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:32,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:32,142 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-20 11:17:32,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1084 transitions, 2186 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:32,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:32,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-20 11:17:32,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:39,319 INFO L130 PetriNetUnfolder]: 701/8730 cut-off events. [2022-11-20 11:17:39,320 INFO L131 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2022-11-20 11:17:39,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9517 conditions, 8730 events. 701/8730 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 81497 event pairs, 285 based on Foata normal form. 1272/8056 useless extension candidates. Maximal degree in co-relation 8543. Up to 664 conditions per place. [2022-11-20 11:17:40,288 INFO L137 encePairwiseOnDemand]: 1090/1111 looper letters, 39 selfloop transitions, 2 changer transitions 2/1065 dead transitions. [2022-11-20 11:17:40,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 1065 transitions, 2230 flow [2022-11-20 11:17:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:40,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:40,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-20 11:17:40,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9621962196219622 [2022-11-20 11:17:40,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-20 11:17:40,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-20 11:17:40,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:40,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-20 11:17:40,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:40,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:40,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:40,370 INFO L175 Difference]: Start difference. First operand has 1038 places, 1084 transitions, 2186 flow. Second operand 3 states and 3207 transitions. [2022-11-20 11:17:40,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1039 places, 1065 transitions, 2230 flow [2022-11-20 11:17:40,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1033 places, 1065 transitions, 2218 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:17:40,416 INFO L231 Difference]: Finished difference. Result has 1033 places, 1063 transitions, 2136 flow [2022-11-20 11:17:40,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=1031, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2136, PETRI_PLACES=1033, PETRI_TRANSITIONS=1063} [2022-11-20 11:17:40,427 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -5 predicate places. [2022-11-20 11:17:40,427 INFO L495 AbstractCegarLoop]: Abstraction has has 1033 places, 1063 transitions, 2136 flow [2022-11-20 11:17:40,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:40,430 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:40,430 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] [2022-11-20 11:17:40,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:17:40,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:17:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:40,432 INFO L85 PathProgramCache]: Analyzing trace with hash -715679943, now seen corresponding path program 1 times [2022-11-20 11:17:40,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:40,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456968732] [2022-11-20 11:17:40,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:40,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:40,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:40,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:40,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456968732] [2022-11-20 11:17:40,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456968732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:40,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:40,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:40,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011267088] [2022-11-20 11:17:40,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:40,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:40,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:40,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:40,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:40,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-20 11:17:40,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1063 transitions, 2136 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:40,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:40,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-20 11:17:40,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:47,040 INFO L130 PetriNetUnfolder]: 1464/15281 cut-off events. [2022-11-20 11:17:47,040 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-20 11:17:47,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16937 conditions, 15281 events. 1464/15281 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 160357 event pairs, 735 based on Foata normal form. 0/11868 useless extension candidates. Maximal degree in co-relation 16893. Up to 1377 conditions per place. [2022-11-20 11:17:47,830 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 39 selfloop transitions, 2 changer transitions 0/1062 dead transitions. [2022-11-20 11:17:47,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1032 places, 1062 transitions, 2216 flow [2022-11-20 11:17:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:47,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3189 transitions. [2022-11-20 11:17:47,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567956795679567 [2022-11-20 11:17:47,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3189 transitions. [2022-11-20 11:17:47,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3189 transitions. [2022-11-20 11:17:47,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:47,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3189 transitions. [2022-11-20 11:17:47,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:47,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:47,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:47,868 INFO L175 Difference]: Start difference. First operand has 1033 places, 1063 transitions, 2136 flow. Second operand 3 states and 3189 transitions. [2022-11-20 11:17:47,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1032 places, 1062 transitions, 2216 flow [2022-11-20 11:17:47,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1030 places, 1062 transitions, 2212 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:17:47,892 INFO L231 Difference]: Finished difference. Result has 1030 places, 1062 transitions, 2134 flow [2022-11-20 11:17:47,895 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=1028, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1060, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2134, PETRI_PLACES=1030, PETRI_TRANSITIONS=1062} [2022-11-20 11:17:47,896 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -8 predicate places. [2022-11-20 11:17:47,896 INFO L495 AbstractCegarLoop]: Abstraction has has 1030 places, 1062 transitions, 2134 flow [2022-11-20 11:17:47,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:47,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:47,899 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] [2022-11-20 11:17:47,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:17:47,899 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:17:47,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:47,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2139899653, now seen corresponding path program 1 times [2022-11-20 11:17:47,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:47,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739835579] [2022-11-20 11:17:47,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:48,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:48,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739835579] [2022-11-20 11:17:48,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739835579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:48,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:48,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:48,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505119403] [2022-11-20 11:17:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:48,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:48,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-20 11:17:48,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1030 places, 1062 transitions, 2134 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:48,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:48,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-20 11:17:48,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:54,744 INFO L130 PetriNetUnfolder]: 1482/15187 cut-off events. [2022-11-20 11:17:54,744 INFO L131 PetriNetUnfolder]: For 288/351 co-relation queries the response was YES. [2022-11-20 11:17:55,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16617 conditions, 15187 events. 1482/15187 cut-off events. For 288/351 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 163554 event pairs, 735 based on Foata normal form. 0/11772 useless extension candidates. Maximal degree in co-relation 16566. Up to 1406 conditions per place. [2022-11-20 11:17:55,644 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 39 selfloop transitions, 2 changer transitions 0/1061 dead transitions. [2022-11-20 11:17:55,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 1061 transitions, 2214 flow [2022-11-20 11:17:55,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3189 transitions. [2022-11-20 11:17:55,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567956795679567 [2022-11-20 11:17:55,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3189 transitions. [2022-11-20 11:17:55,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3189 transitions. [2022-11-20 11:17:55,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:55,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3189 transitions. [2022-11-20 11:17:55,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:55,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:55,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:55,683 INFO L175 Difference]: Start difference. First operand has 1030 places, 1062 transitions, 2134 flow. Second operand 3 states and 3189 transitions. [2022-11-20 11:17:55,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1031 places, 1061 transitions, 2214 flow [2022-11-20 11:17:55,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1029 places, 1061 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:17:55,707 INFO L231 Difference]: Finished difference. Result has 1029 places, 1061 transitions, 2132 flow [2022-11-20 11:17:55,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=1027, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2132, PETRI_PLACES=1029, PETRI_TRANSITIONS=1061} [2022-11-20 11:17:55,711 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -9 predicate places. [2022-11-20 11:17:55,712 INFO L495 AbstractCegarLoop]: Abstraction has has 1029 places, 1061 transitions, 2132 flow [2022-11-20 11:17:55,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:55,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:55,714 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] [2022-11-20 11:17:55,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:17:55,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:17:55,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash 209255940, now seen corresponding path program 1 times [2022-11-20 11:17:55,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:55,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835563399] [2022-11-20 11:17:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:55,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:55,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:55,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835563399] [2022-11-20 11:17:55,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835563399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:55,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:55,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:55,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062343135] [2022-11-20 11:17:55,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:55,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:55,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:55,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:55,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:55,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-20 11:17:55,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 1061 transitions, 2132 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:55,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:55,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-20 11:17:55,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:57,395 INFO L130 PetriNetUnfolder]: 158/2710 cut-off events. [2022-11-20 11:17:57,395 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:17:57,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2710 events. 158/2710 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 18440 event pairs, 48 based on Foata normal form. 0/2159 useless extension candidates. Maximal degree in co-relation 2844. Up to 135 conditions per place. [2022-11-20 11:17:57,480 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 36 selfloop transitions, 2 changer transitions 0/1060 dead transitions. [2022-11-20 11:17:57,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 1060 transitions, 2206 flow [2022-11-20 11:17:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-20 11:17:57,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9585958595859586 [2022-11-20 11:17:57,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-20 11:17:57,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-20 11:17:57,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:57,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-20 11:17:57,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:57,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:57,511 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:57,511 INFO L175 Difference]: Start difference. First operand has 1029 places, 1061 transitions, 2132 flow. Second operand 3 states and 3195 transitions. [2022-11-20 11:17:57,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 1060 transitions, 2206 flow [2022-11-20 11:17:57,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1028 places, 1060 transitions, 2202 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:17:57,530 INFO L231 Difference]: Finished difference. Result has 1028 places, 1060 transitions, 2130 flow [2022-11-20 11:17:57,532 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2126, PETRI_DIFFERENCE_MINUEND_PLACES=1026, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1058, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2130, PETRI_PLACES=1028, PETRI_TRANSITIONS=1060} [2022-11-20 11:17:57,533 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -10 predicate places. [2022-11-20 11:17:57,533 INFO L495 AbstractCegarLoop]: Abstraction has has 1028 places, 1060 transitions, 2130 flow [2022-11-20 11:17:57,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:57,535 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:57,535 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] [2022-11-20 11:17:57,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:17:57,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:17:57,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:57,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1919620142, now seen corresponding path program 1 times [2022-11-20 11:17:57,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:57,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060522996] [2022-11-20 11:17:57,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:57,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:57,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:57,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060522996] [2022-11-20 11:17:57,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060522996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:57,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:57,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:57,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119483718] [2022-11-20 11:17:57,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:57,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:57,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:57,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:57,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:57,588 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-20 11:17:57,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1028 places, 1060 transitions, 2130 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:57,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:57,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-20 11:17:57,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:58,489 INFO L130 PetriNetUnfolder]: 98/1629 cut-off events. [2022-11-20 11:17:58,489 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:17:58,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1774 conditions, 1629 events. 98/1629 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8620 event pairs, 36 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 1709. Up to 100 conditions per place. [2022-11-20 11:17:58,562 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1059 dead transitions. [2022-11-20 11:17:58,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1029 places, 1059 transitions, 2186 flow [2022-11-20 11:17:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:58,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-20 11:17:58,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-20 11:17:58,572 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-20 11:17:58,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-20 11:17:58,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:58,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-20 11:17:58,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:58,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:58,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:58,597 INFO L175 Difference]: Start difference. First operand has 1028 places, 1060 transitions, 2130 flow. Second operand 3 states and 3213 transitions. [2022-11-20 11:17:58,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1029 places, 1059 transitions, 2186 flow [2022-11-20 11:17:58,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1027 places, 1059 transitions, 2182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:17:58,619 INFO L231 Difference]: Finished difference. Result has 1027 places, 1059 transitions, 2128 flow [2022-11-20 11:17:58,621 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=1025, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2128, PETRI_PLACES=1027, PETRI_TRANSITIONS=1059} [2022-11-20 11:17:58,623 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -11 predicate places. [2022-11-20 11:17:58,623 INFO L495 AbstractCegarLoop]: Abstraction has has 1027 places, 1059 transitions, 2128 flow [2022-11-20 11:17:58,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:58,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:58,625 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] [2022-11-20 11:17:58,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:17:58,626 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:17:58,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:58,626 INFO L85 PathProgramCache]: Analyzing trace with hash 828863376, now seen corresponding path program 1 times [2022-11-20 11:17:58,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:58,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439839355] [2022-11-20 11:17:58,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:58,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:58,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:58,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:58,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439839355] [2022-11-20 11:17:58,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439839355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:58,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:58,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:58,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813539327] [2022-11-20 11:17:58,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:58,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:58,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:58,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:58,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:58,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-20 11:17:58,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1059 transitions, 2128 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:58,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:58,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-20 11:17:58,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:59,736 INFO L130 PetriNetUnfolder]: 113/2077 cut-off events. [2022-11-20 11:17:59,737 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-20 11:17:59,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 2077 events. 113/2077 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11101 event pairs, 30 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 2132. Up to 88 conditions per place. [2022-11-20 11:17:59,825 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1058 dead transitions. [2022-11-20 11:17:59,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1058 transitions, 2178 flow [2022-11-20 11:17:59,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:59,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:59,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-20 11:17:59,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-20 11:17:59,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-20 11:17:59,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-20 11:17:59,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:59,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-20 11:17:59,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:59,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:59,852 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:59,853 INFO L175 Difference]: Start difference. First operand has 1027 places, 1059 transitions, 2128 flow. Second operand 3 states and 3219 transitions. [2022-11-20 11:17:59,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1058 transitions, 2178 flow [2022-11-20 11:17:59,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1026 places, 1058 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:17:59,873 INFO L231 Difference]: Finished difference. Result has 1026 places, 1058 transitions, 2126 flow [2022-11-20 11:17:59,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2122, PETRI_DIFFERENCE_MINUEND_PLACES=1024, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1056, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2126, PETRI_PLACES=1026, PETRI_TRANSITIONS=1058} [2022-11-20 11:17:59,876 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -12 predicate places. [2022-11-20 11:17:59,876 INFO L495 AbstractCegarLoop]: Abstraction has has 1026 places, 1058 transitions, 2126 flow [2022-11-20 11:17:59,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:59,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:59,878 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] [2022-11-20 11:17:59,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:17:59,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:17:59,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:59,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1044177642, now seen corresponding path program 1 times [2022-11-20 11:17:59,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:59,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369976009] [2022-11-20 11:17:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:59,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:59,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:59,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369976009] [2022-11-20 11:17:59,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369976009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:59,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:59,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:59,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581587737] [2022-11-20 11:17:59,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:59,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:59,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:59,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:59,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:59,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-20 11:17:59,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1026 places, 1058 transitions, 2126 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:59,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:59,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-20 11:17:59,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:00,815 INFO L130 PetriNetUnfolder]: 158/2203 cut-off events. [2022-11-20 11:18:00,815 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:18:00,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 2203 events. 158/2203 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 14054 event pairs, 72 based on Foata normal form. 0/1771 useless extension candidates. Maximal degree in co-relation 2395. Up to 190 conditions per place. [2022-11-20 11:18:00,910 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1057 dead transitions. [2022-11-20 11:18:00,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1057 transitions, 2218 flow [2022-11-20 11:18:00,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:00,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-20 11:18:00,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-20 11:18:00,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-20 11:18:00,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-20 11:18:00,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:00,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-20 11:18:00,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:00,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:00,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:00,937 INFO L175 Difference]: Start difference. First operand has 1026 places, 1058 transitions, 2126 flow. Second operand 3 states and 3177 transitions. [2022-11-20 11:18:00,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1057 transitions, 2218 flow [2022-11-20 11:18:00,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1025 places, 1057 transitions, 2214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:00,956 INFO L231 Difference]: Finished difference. Result has 1025 places, 1057 transitions, 2124 flow [2022-11-20 11:18:00,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=1023, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2124, PETRI_PLACES=1025, PETRI_TRANSITIONS=1057} [2022-11-20 11:18:00,959 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -13 predicate places. [2022-11-20 11:18:00,959 INFO L495 AbstractCegarLoop]: Abstraction has has 1025 places, 1057 transitions, 2124 flow [2022-11-20 11:18:00,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:00,961 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:00,961 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] [2022-11-20 11:18:00,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:18:00,961 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:00,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:00,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1010423063, now seen corresponding path program 1 times [2022-11-20 11:18:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:00,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526163390] [2022-11-20 11:18:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:00,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:01,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:01,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526163390] [2022-11-20 11:18:01,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526163390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:01,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:01,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:01,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77699402] [2022-11-20 11:18:01,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:01,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:01,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:01,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:01,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:01,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-20 11:18:01,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 1057 transitions, 2124 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:01,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:01,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-20 11:18:01,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:02,039 INFO L130 PetriNetUnfolder]: 134/2174 cut-off events. [2022-11-20 11:18:02,039 INFO L131 PetriNetUnfolder]: For 27/77 co-relation queries the response was YES. [2022-11-20 11:18:02,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 2174 events. 134/2174 cut-off events. For 27/77 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14534 event pairs, 48 based on Foata normal form. 0/1743 useless extension candidates. Maximal degree in co-relation 2256. Up to 135 conditions per place. [2022-11-20 11:18:02,148 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 36 selfloop transitions, 2 changer transitions 0/1056 dead transitions. [2022-11-20 11:18:02,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 1056 transitions, 2198 flow [2022-11-20 11:18:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:02,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-20 11:18:02,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9585958595859586 [2022-11-20 11:18:02,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-20 11:18:02,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-20 11:18:02,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:02,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-20 11:18:02,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:02,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:02,175 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:02,175 INFO L175 Difference]: Start difference. First operand has 1025 places, 1057 transitions, 2124 flow. Second operand 3 states and 3195 transitions. [2022-11-20 11:18:02,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 1056 transitions, 2198 flow [2022-11-20 11:18:02,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1024 places, 1056 transitions, 2194 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:02,196 INFO L231 Difference]: Finished difference. Result has 1024 places, 1056 transitions, 2122 flow [2022-11-20 11:18:02,198 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2118, PETRI_DIFFERENCE_MINUEND_PLACES=1022, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1054, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2122, PETRI_PLACES=1024, PETRI_TRANSITIONS=1056} [2022-11-20 11:18:02,199 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -14 predicate places. [2022-11-20 11:18:02,199 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 1056 transitions, 2122 flow [2022-11-20 11:18:02,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:02,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:02,201 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] [2022-11-20 11:18:02,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:18:02,201 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:02,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:02,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1405204789, now seen corresponding path program 1 times [2022-11-20 11:18:02,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:02,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108034646] [2022-11-20 11:18:02,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:02,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:02,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:02,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108034646] [2022-11-20 11:18:02,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108034646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:02,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:02,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:02,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085466567] [2022-11-20 11:18:02,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:02,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:02,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:02,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:02,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-20 11:18:02,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1056 transitions, 2122 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:02,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:02,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-20 11:18:02,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:03,075 INFO L130 PetriNetUnfolder]: 98/1625 cut-off events. [2022-11-20 11:18:03,075 INFO L131 PetriNetUnfolder]: For 21/35 co-relation queries the response was YES. [2022-11-20 11:18:03,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1625 events. 98/1625 cut-off events. For 21/35 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9147 event pairs, 36 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 1659. Up to 100 conditions per place. [2022-11-20 11:18:03,153 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1055 dead transitions. [2022-11-20 11:18:03,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 1055 transitions, 2178 flow [2022-11-20 11:18:03,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:03,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-20 11:18:03,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-20 11:18:03,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-20 11:18:03,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-20 11:18:03,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:03,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-20 11:18:03,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:03,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:03,179 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:03,180 INFO L175 Difference]: Start difference. First operand has 1024 places, 1056 transitions, 2122 flow. Second operand 3 states and 3213 transitions. [2022-11-20 11:18:03,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1025 places, 1055 transitions, 2178 flow [2022-11-20 11:18:03,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1055 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:03,199 INFO L231 Difference]: Finished difference. Result has 1023 places, 1055 transitions, 2120 flow [2022-11-20 11:18:03,201 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1053, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2120, PETRI_PLACES=1023, PETRI_TRANSITIONS=1055} [2022-11-20 11:18:03,202 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -15 predicate places. [2022-11-20 11:18:03,202 INFO L495 AbstractCegarLoop]: Abstraction has has 1023 places, 1055 transitions, 2120 flow [2022-11-20 11:18:03,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:03,204 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:03,204 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] [2022-11-20 11:18:03,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:18:03,205 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:03,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:03,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1796568062, now seen corresponding path program 1 times [2022-11-20 11:18:03,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:03,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072335930] [2022-11-20 11:18:03,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:03,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:03,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:03,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072335930] [2022-11-20 11:18:03,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072335930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:03,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:03,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:03,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400476924] [2022-11-20 11:18:03,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:03,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:03,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:03,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:03,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:03,309 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-20 11:18:03,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1055 transitions, 2120 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:03,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:03,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-20 11:18:03,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:04,256 INFO L130 PetriNetUnfolder]: 101/1807 cut-off events. [2022-11-20 11:18:04,256 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-20 11:18:04,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1807 events. 101/1807 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9642 event pairs, 30 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 1819. Up to 88 conditions per place. [2022-11-20 11:18:04,355 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1054 dead transitions. [2022-11-20 11:18:04,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1054 transitions, 2170 flow [2022-11-20 11:18:04,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:04,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-20 11:18:04,363 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-20 11:18:04,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-20 11:18:04,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-20 11:18:04,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:04,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-20 11:18:04,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:04,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:04,497 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:04,497 INFO L175 Difference]: Start difference. First operand has 1023 places, 1055 transitions, 2120 flow. Second operand 3 states and 3219 transitions. [2022-11-20 11:18:04,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1054 transitions, 2170 flow [2022-11-20 11:18:04,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1054 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:04,520 INFO L231 Difference]: Finished difference. Result has 1022 places, 1054 transitions, 2118 flow [2022-11-20 11:18:04,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=1020, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2118, PETRI_PLACES=1022, PETRI_TRANSITIONS=1054} [2022-11-20 11:18:04,525 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -16 predicate places. [2022-11-20 11:18:04,525 INFO L495 AbstractCegarLoop]: Abstraction has has 1022 places, 1054 transitions, 2118 flow [2022-11-20 11:18:04,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:04,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:04,528 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] [2022-11-20 11:18:04,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:18:04,528 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:04,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:04,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1687284712, now seen corresponding path program 1 times [2022-11-20 11:18:04,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:04,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085864937] [2022-11-20 11:18:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:04,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:04,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:04,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085864937] [2022-11-20 11:18:04,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085864937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:04,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:04,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:04,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582343662] [2022-11-20 11:18:04,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:04,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:04,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:04,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:04,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:04,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-20 11:18:04,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1054 transitions, 2118 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:04,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:04,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-20 11:18:04,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:05,748 INFO L130 PetriNetUnfolder]: 146/1933 cut-off events. [2022-11-20 11:18:05,748 INFO L131 PetriNetUnfolder]: For 39/98 co-relation queries the response was YES. [2022-11-20 11:18:05,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2168 conditions, 1933 events. 146/1933 cut-off events. For 39/98 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13191 event pairs, 72 based on Foata normal form. 0/1547 useless extension candidates. Maximal degree in co-relation 2061. Up to 190 conditions per place. [2022-11-20 11:18:05,852 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1053 dead transitions. [2022-11-20 11:18:05,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1053 transitions, 2210 flow [2022-11-20 11:18:05,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:05,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-20 11:18:05,859 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-20 11:18:05,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-20 11:18:05,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-20 11:18:05,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:05,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-20 11:18:05,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:05,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:05,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:05,867 INFO L175 Difference]: Start difference. First operand has 1022 places, 1054 transitions, 2118 flow. Second operand 3 states and 3177 transitions. [2022-11-20 11:18:05,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1053 transitions, 2210 flow [2022-11-20 11:18:05,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1021 places, 1053 transitions, 2206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:05,887 INFO L231 Difference]: Finished difference. Result has 1021 places, 1053 transitions, 2116 flow [2022-11-20 11:18:05,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2112, PETRI_DIFFERENCE_MINUEND_PLACES=1019, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2116, PETRI_PLACES=1021, PETRI_TRANSITIONS=1053} [2022-11-20 11:18:05,890 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -17 predicate places. [2022-11-20 11:18:05,890 INFO L495 AbstractCegarLoop]: Abstraction has has 1021 places, 1053 transitions, 2116 flow [2022-11-20 11:18:05,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:05,891 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:05,891 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] [2022-11-20 11:18:05,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:18:05,892 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:05,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:05,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1259207444, now seen corresponding path program 1 times [2022-11-20 11:18:05,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:05,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152431788] [2022-11-20 11:18:05,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:05,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:05,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:05,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152431788] [2022-11-20 11:18:05,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152431788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:05,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:05,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:05,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443811669] [2022-11-20 11:18:05,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:05,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:05,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:05,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:05,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:05,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-20 11:18:05,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 1053 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:05,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:05,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-20 11:18:05,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:06,581 INFO L130 PetriNetUnfolder]: 110/1598 cut-off events. [2022-11-20 11:18:06,581 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-20 11:18:06,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 1598 events. 110/1598 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9454 event pairs, 48 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1627. Up to 134 conditions per place. [2022-11-20 11:18:06,636 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 35 selfloop transitions, 2 changer transitions 0/1052 dead transitions. [2022-11-20 11:18:06,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1052 transitions, 2188 flow [2022-11-20 11:18:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:06,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3194 transitions. [2022-11-20 11:18:06,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582958295829583 [2022-11-20 11:18:06,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3194 transitions. [2022-11-20 11:18:06,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3194 transitions. [2022-11-20 11:18:06,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:06,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3194 transitions. [2022-11-20 11:18:06,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1064.6666666666667) internal successors, (3194), 3 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:06,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:06,654 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:06,654 INFO L175 Difference]: Start difference. First operand has 1021 places, 1053 transitions, 2116 flow. Second operand 3 states and 3194 transitions. [2022-11-20 11:18:06,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 1052 transitions, 2188 flow [2022-11-20 11:18:06,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1020 places, 1052 transitions, 2184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:06,673 INFO L231 Difference]: Finished difference. Result has 1020 places, 1052 transitions, 2114 flow [2022-11-20 11:18:06,675 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=1018, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2114, PETRI_PLACES=1020, PETRI_TRANSITIONS=1052} [2022-11-20 11:18:06,675 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -18 predicate places. [2022-11-20 11:18:06,676 INFO L495 AbstractCegarLoop]: Abstraction has has 1020 places, 1052 transitions, 2114 flow [2022-11-20 11:18:06,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:06,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:06,677 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] [2022-11-20 11:18:06,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:18:06,677 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:06,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:06,678 INFO L85 PathProgramCache]: Analyzing trace with hash -631922247, now seen corresponding path program 1 times [2022-11-20 11:18:06,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:06,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314724484] [2022-11-20 11:18:06,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:06,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:06,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:06,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314724484] [2022-11-20 11:18:06,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314724484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:06,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:06,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:06,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615171638] [2022-11-20 11:18:06,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:06,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:06,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:06,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:06,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:06,729 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-20 11:18:06,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1020 places, 1052 transitions, 2114 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:06,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:06,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-20 11:18:06,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:07,714 INFO L130 PetriNetUnfolder]: 98/1621 cut-off events. [2022-11-20 11:18:07,714 INFO L131 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2022-11-20 11:18:07,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 1621 events. 98/1621 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9412 event pairs, 36 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 1609. Up to 100 conditions per place. [2022-11-20 11:18:07,777 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1051 dead transitions. [2022-11-20 11:18:07,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1021 places, 1051 transitions, 2170 flow [2022-11-20 11:18:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:07,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-20 11:18:07,784 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-20 11:18:07,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-20 11:18:07,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-20 11:18:07,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:07,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-20 11:18:07,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:07,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:07,791 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:07,791 INFO L175 Difference]: Start difference. First operand has 1020 places, 1052 transitions, 2114 flow. Second operand 3 states and 3213 transitions. [2022-11-20 11:18:07,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1021 places, 1051 transitions, 2170 flow [2022-11-20 11:18:07,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1019 places, 1051 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:07,806 INFO L231 Difference]: Finished difference. Result has 1019 places, 1051 transitions, 2112 flow [2022-11-20 11:18:07,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2108, PETRI_DIFFERENCE_MINUEND_PLACES=1017, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1049, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2112, PETRI_PLACES=1019, PETRI_TRANSITIONS=1051} [2022-11-20 11:18:07,808 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -19 predicate places. [2022-11-20 11:18:07,808 INFO L495 AbstractCegarLoop]: Abstraction has has 1019 places, 1051 transitions, 2112 flow [2022-11-20 11:18:07,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:07,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:07,809 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] [2022-11-20 11:18:07,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:18:07,809 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:07,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:07,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2061789909, now seen corresponding path program 1 times [2022-11-20 11:18:07,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:07,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395508220] [2022-11-20 11:18:07,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:07,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:07,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:07,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395508220] [2022-11-20 11:18:07,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395508220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:07,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:07,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:07,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764537229] [2022-11-20 11:18:07,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:07,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:07,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:07,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:07,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:07,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-20 11:18:07,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1051 transitions, 2112 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:07,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:07,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-20 11:18:07,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:08,874 INFO L130 PetriNetUnfolder]: 89/1533 cut-off events. [2022-11-20 11:18:08,875 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-20 11:18:08,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 1533 events. 89/1533 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7690 event pairs, 30 based on Foata normal form. 0/1245 useless extension candidates. Maximal degree in co-relation 1502. Up to 88 conditions per place. [2022-11-20 11:18:08,910 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1050 dead transitions. [2022-11-20 11:18:08,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1020 places, 1050 transitions, 2162 flow [2022-11-20 11:18:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:08,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:08,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-20 11:18:08,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-20 11:18:08,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-20 11:18:08,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-20 11:18:08,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:08,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-20 11:18:08,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:08,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:08,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:08,926 INFO L175 Difference]: Start difference. First operand has 1019 places, 1051 transitions, 2112 flow. Second operand 3 states and 3219 transitions. [2022-11-20 11:18:08,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1020 places, 1050 transitions, 2162 flow [2022-11-20 11:18:08,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1018 places, 1050 transitions, 2158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:08,939 INFO L231 Difference]: Finished difference. Result has 1018 places, 1050 transitions, 2110 flow [2022-11-20 11:18:08,941 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2106, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2110, PETRI_PLACES=1018, PETRI_TRANSITIONS=1050} [2022-11-20 11:18:08,941 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -20 predicate places. [2022-11-20 11:18:08,941 INFO L495 AbstractCegarLoop]: Abstraction has has 1018 places, 1050 transitions, 2110 flow [2022-11-20 11:18:08,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:08,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:08,942 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] [2022-11-20 11:18:08,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:18:08,943 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:08,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:08,943 INFO L85 PathProgramCache]: Analyzing trace with hash -650688338, now seen corresponding path program 1 times [2022-11-20 11:18:08,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:08,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526373796] [2022-11-20 11:18:08,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:08,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:08,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:08,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:08,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526373796] [2022-11-20 11:18:08,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526373796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:08,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:08,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:08,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791776357] [2022-11-20 11:18:08,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:08,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:08,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:08,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:08,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:08,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-20 11:18:09,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1018 places, 1050 transitions, 2110 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:09,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:09,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-20 11:18:09,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:09,925 INFO L130 PetriNetUnfolder]: 134/1643 cut-off events. [2022-11-20 11:18:09,926 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2022-11-20 11:18:09,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1643 events. 134/1643 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 11096 event pairs, 72 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 1707. Up to 190 conditions per place. [2022-11-20 11:18:10,022 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1049 dead transitions. [2022-11-20 11:18:10,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1019 places, 1049 transitions, 2202 flow [2022-11-20 11:18:10,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:10,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-20 11:18:10,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-20 11:18:10,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-20 11:18:10,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-20 11:18:10,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:10,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-20 11:18:10,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:10,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:10,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:10,042 INFO L175 Difference]: Start difference. First operand has 1018 places, 1050 transitions, 2110 flow. Second operand 3 states and 3177 transitions. [2022-11-20 11:18:10,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1019 places, 1049 transitions, 2202 flow [2022-11-20 11:18:10,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1017 places, 1049 transitions, 2198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:10,064 INFO L231 Difference]: Finished difference. Result has 1017 places, 1049 transitions, 2108 flow [2022-11-20 11:18:10,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2104, PETRI_DIFFERENCE_MINUEND_PLACES=1015, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1047, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2108, PETRI_PLACES=1017, PETRI_TRANSITIONS=1049} [2022-11-20 11:18:10,067 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -21 predicate places. [2022-11-20 11:18:10,067 INFO L495 AbstractCegarLoop]: Abstraction has has 1017 places, 1049 transitions, 2108 flow [2022-11-20 11:18:10,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:10,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:10,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:10,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:18:10,069 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:10,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:10,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1529007315, now seen corresponding path program 1 times [2022-11-20 11:18:10,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:10,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579189135] [2022-11-20 11:18:10,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:10,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:10,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579189135] [2022-11-20 11:18:10,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579189135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:10,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:10,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:10,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792100416] [2022-11-20 11:18:10,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:10,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:10,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:10,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:10,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:10,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1111 [2022-11-20 11:18:10,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1017 places, 1049 transitions, 2108 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:10,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:10,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1111 [2022-11-20 11:18:10,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:14,195 INFO L130 PetriNetUnfolder]: 579/9162 cut-off events. [2022-11-20 11:18:14,195 INFO L131 PetriNetUnfolder]: For 42/65 co-relation queries the response was YES. [2022-11-20 11:18:14,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9512 conditions, 9162 events. 579/9162 cut-off events. For 42/65 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 86860 event pairs, 135 based on Foata normal form. 0/7175 useless extension candidates. Maximal degree in co-relation 9370. Up to 323 conditions per place. [2022-11-20 11:18:14,686 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 18 selfloop transitions, 2 changer transitions 0/1048 dead transitions. [2022-11-20 11:18:14,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1018 places, 1048 transitions, 2146 flow [2022-11-20 11:18:14,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-20 11:18:14,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9693969396939695 [2022-11-20 11:18:14,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-20 11:18:14,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-20 11:18:14,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:14,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-20 11:18:14,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:14,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:14,706 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:14,707 INFO L175 Difference]: Start difference. First operand has 1017 places, 1049 transitions, 2108 flow. Second operand 3 states and 3231 transitions. [2022-11-20 11:18:14,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1018 places, 1048 transitions, 2146 flow [2022-11-20 11:18:14,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1016 places, 1048 transitions, 2142 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:14,725 INFO L231 Difference]: Finished difference. Result has 1016 places, 1048 transitions, 2106 flow [2022-11-20 11:18:14,727 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=1014, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1046, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2106, PETRI_PLACES=1016, PETRI_TRANSITIONS=1048} [2022-11-20 11:18:14,727 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -22 predicate places. [2022-11-20 11:18:14,728 INFO L495 AbstractCegarLoop]: Abstraction has has 1016 places, 1048 transitions, 2106 flow [2022-11-20 11:18:14,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:14,729 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:14,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:14,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:18:14,729 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-20 11:18:14,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:14,730 INFO L85 PathProgramCache]: Analyzing trace with hash -530006834, now seen corresponding path program 1 times [2022-11-20 11:18:14,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:14,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906286401] [2022-11-20 11:18:14,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:14,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:15,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:15,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906286401] [2022-11-20 11:18:15,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906286401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:15,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:15,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:15,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499840246] [2022-11-20 11:18:15,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:15,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:18:15,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:15,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:18:15,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:18:15,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1032 out of 1111 [2022-11-20 11:18:15,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1016 places, 1048 transitions, 2106 flow. Second operand has 6 states, 6 states have (on average 1033.8333333333333) internal successors, (6203), 6 states have internal predecessors, (6203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:15,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:15,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1032 of 1111 [2022-11-20 11:18:15,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand