./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e169a35d3412f69777e600b250d6db82170a9573bed36816bd393f67ca1b5302 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:30:12,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:30:12,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:30:12,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:30:12,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:30:12,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:30:12,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:30:12,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:30:12,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:30:12,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:30:12,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:30:12,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:30:12,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:30:12,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:30:12,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:30:12,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:30:12,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:30:12,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:30:12,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:30:12,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:30:12,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:30:12,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:30:12,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:30:12,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:30:12,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:30:12,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:30:12,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:30:12,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:30:12,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:30:12,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:30:12,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:30:12,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:30:12,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:30:12,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:30:12,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:30:12,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:30:12,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:30:12,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:30:12,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:30:12,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:30:12,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:30:12,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:30:12,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:30:12,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:30:12,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:30:12,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:30:12,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:30:12,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:30:12,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:30:12,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:30:12,915 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:30:12,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:30:12,917 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:30:12,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:30:12,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:30:12,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:30:12,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:30:12,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:30:12,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:30:12,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:30:12,919 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:30:12,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:30:12,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:30:12,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:30:12,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:30:12,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:30:12,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:30:12,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:30:12,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:12,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:30:12,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:30:12,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:30:12,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:30:12,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:30:12,924 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:30:12,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:30:12,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:30:12,925 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_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e169a35d3412f69777e600b250d6db82170a9573bed36816bd393f67ca1b5302 [2022-11-16 11:30:13,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:30:13,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:30:13,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:30:13,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:30:13,253 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:30:13,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread/fib_safe-12.i [2022-11-16 11:30:13,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/data/16e80ef3c/18dc5279ef4b4f638d9925116e44949c/FLAG656c4ca44 [2022-11-16 11:30:13,975 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:30:13,976 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/sv-benchmarks/c/pthread/fib_safe-12.i [2022-11-16 11:30:13,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/data/16e80ef3c/18dc5279ef4b4f638d9925116e44949c/FLAG656c4ca44 [2022-11-16 11:30:14,236 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/data/16e80ef3c/18dc5279ef4b4f638d9925116e44949c [2022-11-16 11:30:14,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:30:14,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:30:14,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:14,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:30:14,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:30:14,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433773bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14, skipping insertion in model container [2022-11-16 11:30:14,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:30:14,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:30:14,714 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/sv-benchmarks/c/pthread/fib_safe-12.i[30241,30254] [2022-11-16 11:30:14,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:14,776 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:30:14,839 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/sv-benchmarks/c/pthread/fib_safe-12.i[30241,30254] [2022-11-16 11:30:14,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:14,889 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:30:14,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14 WrapperNode [2022-11-16 11:30:14,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:14,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:14,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:30:14,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:30:14,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,937 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 126 [2022-11-16 11:30:14,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:14,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:30:14,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:30:14,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:30:14,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,965 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:30:14,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:30:14,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:30:14,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:30:14,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:15,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:15,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:15,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:30:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 11:30:15,074 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 11:30:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 11:30:15,074 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 11:30:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:30:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:30:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:30:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:30:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:30:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:30:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:30:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:30:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:30:15,078 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:30:15,354 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:30:15,356 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:30:15,854 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:30:15,953 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:30:15,953 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 11:30:15,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:15 BoogieIcfgContainer [2022-11-16 11:30:15,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:30:15,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:30:15,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:30:15,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:30:15,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:30:14" (1/3) ... [2022-11-16 11:30:15,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700bb9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:15, skipping insertion in model container [2022-11-16 11:30:15,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (2/3) ... [2022-11-16 11:30:15,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700bb9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:15, skipping insertion in model container [2022-11-16 11:30:15,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:15" (3/3) ... [2022-11-16 11:30:15,968 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-12.i [2022-11-16 11:30:15,979 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:30:15,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:30:15,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-16 11:30:15,994 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:30:16,075 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:30:16,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 188 transitions, 386 flow [2022-11-16 11:30:16,278 INFO L130 PetriNetUnfolder]: 7/186 cut-off events. [2022-11-16 11:30:16,279 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:16,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 186 events. 7/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 339 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-11-16 11:30:16,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 188 transitions, 386 flow [2022-11-16 11:30:16,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 186 transitions, 378 flow [2022-11-16 11:30:16,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:30:16,328 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;@168ceaee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:30:16,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-16 11:30:16,340 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2022-11-16 11:30:16,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:16,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:16,341 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] [2022-11-16 11:30:16,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:16,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:16,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1648115188, now seen corresponding path program 1 times [2022-11-16 11:30:16,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:16,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33710240] [2022-11-16 11:30:16,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:16,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:16,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:16,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33710240] [2022-11-16 11:30:16,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33710240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:16,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:16,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:30:16,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048070601] [2022-11-16 11:30:16,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:16,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:30:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:30:16,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:30:16,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 188 [2022-11-16 11:30:16,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 186 transitions, 378 flow. Second operand has 2 states, 2 states have (on average 166.5) internal successors, (333), 2 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:16,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 188 [2022-11-16 11:30:16,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:16,890 INFO L130 PetriNetUnfolder]: 13/326 cut-off events. [2022-11-16 11:30:16,890 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:30:16,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 326 events. 13/326 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1149 event pairs, 6 based on Foata normal form. 18/290 useless extension candidates. Maximal degree in co-relation 316. Up to 21 conditions per place. [2022-11-16 11:30:16,898 INFO L137 encePairwiseOnDemand]: 174/188 looper letters, 7 selfloop transitions, 0 changer transitions 0/171 dead transitions. [2022-11-16 11:30:16,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 171 transitions, 362 flow [2022-11-16 11:30:16,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:30:16,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:30:16,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 353 transitions. [2022-11-16 11:30:16,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9388297872340425 [2022-11-16 11:30:16,916 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 353 transitions. [2022-11-16 11:30:16,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 353 transitions. [2022-11-16 11:30:16,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:16,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 353 transitions. [2022-11-16 11:30:16,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,942 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,944 INFO L175 Difference]: Start difference. First operand has 186 places, 186 transitions, 378 flow. Second operand 2 states and 353 transitions. [2022-11-16 11:30:16,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 171 transitions, 362 flow [2022-11-16 11:30:16,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 171 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:16,957 INFO L231 Difference]: Finished difference. Result has 174 places, 171 transitions, 346 flow [2022-11-16 11:30:16,959 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=346, PETRI_PLACES=174, PETRI_TRANSITIONS=171} [2022-11-16 11:30:16,965 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -12 predicate places. [2022-11-16 11:30:16,966 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 171 transitions, 346 flow [2022-11-16 11:30:16,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 166.5) internal successors, (333), 2 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:16,967 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] [2022-11-16 11:30:16,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:30:16,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:16,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash 838962904, now seen corresponding path program 1 times [2022-11-16 11:30:16,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:16,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952936744] [2022-11-16 11:30:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:16,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:17,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:17,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952936744] [2022-11-16 11:30:17,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952936744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:17,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:17,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420198373] [2022-11-16 11:30:17,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:17,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:17,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:17,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:17,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 188 [2022-11-16 11:30:17,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 171 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:17,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 188 [2022-11-16 11:30:17,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:17,272 INFO L130 PetriNetUnfolder]: 93/540 cut-off events. [2022-11-16 11:30:17,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:17,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 540 events. 93/540 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3087 event pairs, 61 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 735. Up to 142 conditions per place. [2022-11-16 11:30:17,282 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 21 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-16 11:30:17,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 173 transitions, 398 flow [2022-11-16 11:30:17,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:17,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2022-11-16 11:30:17,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.851063829787234 [2022-11-16 11:30:17,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2022-11-16 11:30:17,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2022-11-16 11:30:17,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:17,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2022-11-16 11:30:17,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,301 INFO L175 Difference]: Start difference. First operand has 174 places, 171 transitions, 346 flow. Second operand 3 states and 480 transitions. [2022-11-16 11:30:17,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 173 transitions, 398 flow [2022-11-16 11:30:17,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 173 transitions, 398 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:30:17,310 INFO L231 Difference]: Finished difference. Result has 175 places, 170 transitions, 348 flow [2022-11-16 11:30:17,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=175, PETRI_TRANSITIONS=170} [2022-11-16 11:30:17,312 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -11 predicate places. [2022-11-16 11:30:17,312 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 170 transitions, 348 flow [2022-11-16 11:30:17,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,313 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:17,314 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] [2022-11-16 11:30:17,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:30:17,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:17,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:17,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1129701979, now seen corresponding path program 1 times [2022-11-16 11:30:17,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:17,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935719419] [2022-11-16 11:30:17,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:17,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:17,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935719419] [2022-11-16 11:30:17,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935719419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:17,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:17,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:17,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189482181] [2022-11-16 11:30:17,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:17,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:17,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:17,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:17,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:17,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 188 [2022-11-16 11:30:17,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 170 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:17,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 188 [2022-11-16 11:30:17,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:17,603 INFO L130 PetriNetUnfolder]: 77/489 cut-off events. [2022-11-16 11:30:17,603 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:30:17,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 489 events. 77/489 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2591 event pairs, 31 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 650. Up to 68 conditions per place. [2022-11-16 11:30:17,611 INFO L137 encePairwiseOnDemand]: 184/188 looper letters, 17 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2022-11-16 11:30:17,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 171 transitions, 390 flow [2022-11-16 11:30:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:17,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2022-11-16 11:30:17,616 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8563829787234043 [2022-11-16 11:30:17,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2022-11-16 11:30:17,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2022-11-16 11:30:17,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:17,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2022-11-16 11:30:17,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,623 INFO L175 Difference]: Start difference. First operand has 175 places, 170 transitions, 348 flow. Second operand 3 states and 483 transitions. [2022-11-16 11:30:17,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 171 transitions, 390 flow [2022-11-16 11:30:17,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 171 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:17,629 INFO L231 Difference]: Finished difference. Result has 173 places, 168 transitions, 344 flow [2022-11-16 11:30:17,630 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=173, PETRI_TRANSITIONS=168} [2022-11-16 11:30:17,632 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -13 predicate places. [2022-11-16 11:30:17,633 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 168 transitions, 344 flow [2022-11-16 11:30:17,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:17,633 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] [2022-11-16 11:30:17,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:30:17,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:17,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:17,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1358851730, now seen corresponding path program 1 times [2022-11-16 11:30:17,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:17,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469251866] [2022-11-16 11:30:17,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:17,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:17,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469251866] [2022-11-16 11:30:17,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469251866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:17,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:17,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596811823] [2022-11-16 11:30:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:17,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:17,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:17,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:17,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:17,772 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 188 [2022-11-16 11:30:17,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 168 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:17,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 188 [2022-11-16 11:30:17,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:17,897 INFO L130 PetriNetUnfolder]: 65/379 cut-off events. [2022-11-16 11:30:17,898 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:17,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 379 events. 65/379 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1962 event pairs, 50 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 509. Up to 107 conditions per place. [2022-11-16 11:30:17,904 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 20 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2022-11-16 11:30:17,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 169 transitions, 390 flow [2022-11-16 11:30:17,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2022-11-16 11:30:17,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.849290780141844 [2022-11-16 11:30:17,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 479 transitions. [2022-11-16 11:30:17,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 479 transitions. [2022-11-16 11:30:17,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:17,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 479 transitions. [2022-11-16 11:30:17,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,912 INFO L175 Difference]: Start difference. First operand has 173 places, 168 transitions, 344 flow. Second operand 3 states and 479 transitions. [2022-11-16 11:30:17,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 169 transitions, 390 flow [2022-11-16 11:30:17,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 169 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:17,916 INFO L231 Difference]: Finished difference. Result has 172 places, 167 transitions, 342 flow [2022-11-16 11:30:17,917 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=172, PETRI_TRANSITIONS=167} [2022-11-16 11:30:17,918 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -14 predicate places. [2022-11-16 11:30:17,918 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 167 transitions, 342 flow [2022-11-16 11:30:17,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:17,919 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] [2022-11-16 11:30:17,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:30:17,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:17,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:17,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1484569501, now seen corresponding path program 1 times [2022-11-16 11:30:17,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:17,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284407421] [2022-11-16 11:30:17,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:17,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:17,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284407421] [2022-11-16 11:30:17,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284407421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:17,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:17,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:17,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103101000] [2022-11-16 11:30:17,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:17,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:17,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:17,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:17,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:17,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 188 [2022-11-16 11:30:17,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 167 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:17,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 188 [2022-11-16 11:30:17,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:18,068 INFO L130 PetriNetUnfolder]: 49/383 cut-off events. [2022-11-16 11:30:18,069 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:30:18,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 383 events. 49/383 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1988 event pairs, 24 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 487. Up to 51 conditions per place. [2022-11-16 11:30:18,074 INFO L137 encePairwiseOnDemand]: 184/188 looper letters, 16 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-11-16 11:30:18,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 167 transitions, 378 flow [2022-11-16 11:30:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2022-11-16 11:30:18,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8546099290780141 [2022-11-16 11:30:18,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 482 transitions. [2022-11-16 11:30:18,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 482 transitions. [2022-11-16 11:30:18,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:18,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 482 transitions. [2022-11-16 11:30:18,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,081 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,081 INFO L175 Difference]: Start difference. First operand has 172 places, 167 transitions, 342 flow. Second operand 3 states and 482 transitions. [2022-11-16 11:30:18,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 167 transitions, 378 flow [2022-11-16 11:30:18,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 167 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:18,084 INFO L231 Difference]: Finished difference. Result has 170 places, 165 transitions, 338 flow [2022-11-16 11:30:18,085 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=170, PETRI_TRANSITIONS=165} [2022-11-16 11:30:18,086 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -16 predicate places. [2022-11-16 11:30:18,086 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 165 transitions, 338 flow [2022-11-16 11:30:18,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:18,087 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] [2022-11-16 11:30:18,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:30:18,087 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:18,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:18,087 INFO L85 PathProgramCache]: Analyzing trace with hash 936530402, now seen corresponding path program 1 times [2022-11-16 11:30:18,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:18,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472574128] [2022-11-16 11:30:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:18,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:18,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:18,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:18,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472574128] [2022-11-16 11:30:18,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472574128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:18,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:18,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:18,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466349079] [2022-11-16 11:30:18,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:18,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:18,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:18,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:18,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 188 [2022-11-16 11:30:18,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 165 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:18,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 188 [2022-11-16 11:30:18,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:18,271 INFO L130 PetriNetUnfolder]: 69/485 cut-off events. [2022-11-16 11:30:18,271 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:18,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 485 events. 69/485 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2658 event pairs, 54 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 625. Up to 115 conditions per place. [2022-11-16 11:30:18,277 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 21 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-16 11:30:18,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 166 transitions, 386 flow [2022-11-16 11:30:18,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:18,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2022-11-16 11:30:18,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8457446808510638 [2022-11-16 11:30:18,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2022-11-16 11:30:18,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2022-11-16 11:30:18,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:18,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2022-11-16 11:30:18,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,284 INFO L175 Difference]: Start difference. First operand has 170 places, 165 transitions, 338 flow. Second operand 3 states and 477 transitions. [2022-11-16 11:30:18,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 166 transitions, 386 flow [2022-11-16 11:30:18,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 166 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:18,288 INFO L231 Difference]: Finished difference. Result has 169 places, 164 transitions, 336 flow [2022-11-16 11:30:18,289 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=169, PETRI_TRANSITIONS=164} [2022-11-16 11:30:18,292 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -17 predicate places. [2022-11-16 11:30:18,292 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 164 transitions, 336 flow [2022-11-16 11:30:18,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,293 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:18,293 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:18,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:30:18,294 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:18,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:18,295 INFO L85 PathProgramCache]: Analyzing trace with hash -631841407, now seen corresponding path program 1 times [2022-11-16 11:30:18,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:18,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854475106] [2022-11-16 11:30:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:18,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:18,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:18,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854475106] [2022-11-16 11:30:18,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854475106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:18,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:18,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:18,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660258570] [2022-11-16 11:30:18,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:18,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:18,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:18,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:18,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:18,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 188 [2022-11-16 11:30:18,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:18,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 188 [2022-11-16 11:30:18,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:18,499 INFO L130 PetriNetUnfolder]: 70/441 cut-off events. [2022-11-16 11:30:18,499 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:18,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 441 events. 70/441 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2237 event pairs, 41 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 593. Up to 105 conditions per place. [2022-11-16 11:30:18,505 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 18 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-16 11:30:18,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 166 transitions, 382 flow [2022-11-16 11:30:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:18,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2022-11-16 11:30:18,509 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8457446808510638 [2022-11-16 11:30:18,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2022-11-16 11:30:18,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2022-11-16 11:30:18,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:18,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2022-11-16 11:30:18,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,514 INFO L175 Difference]: Start difference. First operand has 169 places, 164 transitions, 336 flow. Second operand 3 states and 477 transitions. [2022-11-16 11:30:18,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 166 transitions, 382 flow [2022-11-16 11:30:18,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:18,518 INFO L231 Difference]: Finished difference. Result has 168 places, 163 transitions, 334 flow [2022-11-16 11:30:18,519 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=168, PETRI_TRANSITIONS=163} [2022-11-16 11:30:18,520 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -18 predicate places. [2022-11-16 11:30:18,521 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 163 transitions, 334 flow [2022-11-16 11:30:18,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:18,522 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] [2022-11-16 11:30:18,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:30:18,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:18,523 INFO L85 PathProgramCache]: Analyzing trace with hash 70049128, now seen corresponding path program 1 times [2022-11-16 11:30:18,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:18,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518489870] [2022-11-16 11:30:18,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:18,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:18,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:18,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:18,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518489870] [2022-11-16 11:30:18,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518489870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:18,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:18,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:18,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278556086] [2022-11-16 11:30:18,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:18,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:18,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:18,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:18,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:18,586 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 188 [2022-11-16 11:30:18,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 163 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:18,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 188 [2022-11-16 11:30:18,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:18,702 INFO L130 PetriNetUnfolder]: 49/450 cut-off events. [2022-11-16 11:30:18,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:18,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 450 events. 49/450 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2270 event pairs, 22 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 548. Up to 51 conditions per place. [2022-11-16 11:30:18,707 INFO L137 encePairwiseOnDemand]: 184/188 looper letters, 16 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-11-16 11:30:18,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 370 flow [2022-11-16 11:30:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:18,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2022-11-16 11:30:18,709 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8546099290780141 [2022-11-16 11:30:18,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 482 transitions. [2022-11-16 11:30:18,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 482 transitions. [2022-11-16 11:30:18,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:18,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 482 transitions. [2022-11-16 11:30:18,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,713 INFO L175 Difference]: Start difference. First operand has 168 places, 163 transitions, 334 flow. Second operand 3 states and 482 transitions. [2022-11-16 11:30:18,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 370 flow [2022-11-16 11:30:18,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 163 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:18,717 INFO L231 Difference]: Finished difference. Result has 166 places, 161 transitions, 330 flow [2022-11-16 11:30:18,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=166, PETRI_TRANSITIONS=161} [2022-11-16 11:30:18,721 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -20 predicate places. [2022-11-16 11:30:18,721 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 161 transitions, 330 flow [2022-11-16 11:30:18,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:18,722 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:18,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:30:18,722 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:18,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:18,723 INFO L85 PathProgramCache]: Analyzing trace with hash -520105045, now seen corresponding path program 1 times [2022-11-16 11:30:18,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:18,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683587029] [2022-11-16 11:30:18,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:18,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:18,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:18,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683587029] [2022-11-16 11:30:18,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683587029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:18,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:18,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:18,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535524439] [2022-11-16 11:30:18,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:18,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:18,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:18,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:18,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:18,781 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 188 [2022-11-16 11:30:18,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 161 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:18,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 188 [2022-11-16 11:30:18,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:18,891 INFO L130 PetriNetUnfolder]: 41/594 cut-off events. [2022-11-16 11:30:18,891 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:18,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 594 events. 41/594 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2777 event pairs, 14 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 691. Up to 45 conditions per place. [2022-11-16 11:30:18,897 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 16 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-16 11:30:18,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 166 transitions, 376 flow [2022-11-16 11:30:18,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:18,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2022-11-16 11:30:18,900 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8847517730496454 [2022-11-16 11:30:18,900 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2022-11-16 11:30:18,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2022-11-16 11:30:18,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:18,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2022-11-16 11:30:18,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,904 INFO L175 Difference]: Start difference. First operand has 166 places, 161 transitions, 330 flow. Second operand 3 states and 499 transitions. [2022-11-16 11:30:18,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 166 transitions, 376 flow [2022-11-16 11:30:18,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 166 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:18,908 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 338 flow [2022-11-16 11:30:18,908 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-16 11:30:18,909 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -19 predicate places. [2022-11-16 11:30:18,909 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 338 flow [2022-11-16 11:30:18,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:18,910 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] [2022-11-16 11:30:18,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:30:18,910 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:18,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:18,911 INFO L85 PathProgramCache]: Analyzing trace with hash -520104087, now seen corresponding path program 1 times [2022-11-16 11:30:18,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:18,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809830462] [2022-11-16 11:30:18,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:18,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:18,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:18,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809830462] [2022-11-16 11:30:18,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809830462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:18,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:18,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:18,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140598151] [2022-11-16 11:30:18,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:18,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:18,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:18,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:18,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:18,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2022-11-16 11:30:18,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:18,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2022-11-16 11:30:18,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:19,066 INFO L130 PetriNetUnfolder]: 83/640 cut-off events. [2022-11-16 11:30:19,066 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:30:19,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 640 events. 83/640 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3112 event pairs, 26 based on Foata normal form. 0/568 useless extension candidates. Maximal degree in co-relation 799. Up to 71 conditions per place. [2022-11-16 11:30:19,074 INFO L137 encePairwiseOnDemand]: 183/188 looper letters, 13 selfloop transitions, 3 changer transitions 0/162 dead transitions. [2022-11-16 11:30:19,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 162 transitions, 370 flow [2022-11-16 11:30:19,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2022-11-16 11:30:19,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670212765957447 [2022-11-16 11:30:19,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:19,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,093 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 338 flow. Second operand 3 states and 489 transitions. [2022-11-16 11:30:19,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 162 transitions, 370 flow [2022-11-16 11:30:19,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 162 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:30:19,097 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 338 flow [2022-11-16 11:30:19,098 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2022-11-16 11:30:19,099 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -20 predicate places. [2022-11-16 11:30:19,099 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 338 flow [2022-11-16 11:30:19,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:19,100 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] [2022-11-16 11:30:19,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:30:19,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:19,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:19,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1603806644, now seen corresponding path program 1 times [2022-11-16 11:30:19,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:19,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826337613] [2022-11-16 11:30:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:19,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:19,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826337613] [2022-11-16 11:30:19,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826337613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:19,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:19,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42776484] [2022-11-16 11:30:19,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:19,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:19,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:19,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:19,172 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2022-11-16 11:30:19,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:19,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2022-11-16 11:30:19,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:19,309 INFO L130 PetriNetUnfolder]: 91/628 cut-off events. [2022-11-16 11:30:19,310 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:19,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 628 events. 91/628 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3119 event pairs, 30 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 817. Up to 81 conditions per place. [2022-11-16 11:30:19,317 INFO L137 encePairwiseOnDemand]: 184/188 looper letters, 14 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2022-11-16 11:30:19,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 160 transitions, 370 flow [2022-11-16 11:30:19,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:19,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2022-11-16 11:30:19,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670212765957447 [2022-11-16 11:30:19,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:19,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,325 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 338 flow. Second operand 3 states and 489 transitions. [2022-11-16 11:30:19,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 160 transitions, 370 flow [2022-11-16 11:30:19,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 160 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:19,329 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 332 flow [2022-11-16 11:30:19,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2022-11-16 11:30:19,330 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -22 predicate places. [2022-11-16 11:30:19,330 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 332 flow [2022-11-16 11:30:19,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:19,331 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] [2022-11-16 11:30:19,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:30:19,331 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:19,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:19,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1934838377, now seen corresponding path program 1 times [2022-11-16 11:30:19,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:19,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136404106] [2022-11-16 11:30:19,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:19,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:19,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:19,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136404106] [2022-11-16 11:30:19,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136404106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:19,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:19,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:19,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746642880] [2022-11-16 11:30:19,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:19,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:19,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:19,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:19,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:19,403 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 188 [2022-11-16 11:30:19,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 158 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:19,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 188 [2022-11-16 11:30:19,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:19,491 INFO L130 PetriNetUnfolder]: 49/402 cut-off events. [2022-11-16 11:30:19,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:19,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 402 events. 49/402 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1599 event pairs, 34 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 517. Up to 79 conditions per place. [2022-11-16 11:30:19,497 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 17 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2022-11-16 11:30:19,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 159 transitions, 372 flow [2022-11-16 11:30:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:19,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2022-11-16 11:30:19,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8439716312056738 [2022-11-16 11:30:19,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2022-11-16 11:30:19,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2022-11-16 11:30:19,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:19,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2022-11-16 11:30:19,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,504 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 332 flow. Second operand 3 states and 476 transitions. [2022-11-16 11:30:19,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 159 transitions, 372 flow [2022-11-16 11:30:19,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 159 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:19,507 INFO L231 Difference]: Finished difference. Result has 163 places, 157 transitions, 330 flow [2022-11-16 11:30:19,508 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=163, PETRI_TRANSITIONS=157} [2022-11-16 11:30:19,508 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -23 predicate places. [2022-11-16 11:30:19,509 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 157 transitions, 330 flow [2022-11-16 11:30:19,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:19,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:19,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:30:19,510 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:19,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:19,510 INFO L85 PathProgramCache]: Analyzing trace with hash 431615598, now seen corresponding path program 1 times [2022-11-16 11:30:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:19,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010735025] [2022-11-16 11:30:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:19,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:19,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:19,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010735025] [2022-11-16 11:30:19,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010735025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:19,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:19,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:19,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478994355] [2022-11-16 11:30:19,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:19,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:19,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:19,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:19,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:19,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2022-11-16 11:30:19,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 157 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:19,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2022-11-16 11:30:19,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:19,688 INFO L130 PetriNetUnfolder]: 73/590 cut-off events. [2022-11-16 11:30:19,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:19,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 590 events. 73/590 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2914 event pairs, 50 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 751. Up to 107 conditions per place. [2022-11-16 11:30:19,696 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 15 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2022-11-16 11:30:19,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 158 transitions, 366 flow [2022-11-16 11:30:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:19,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2022-11-16 11:30:19,699 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670212765957447 [2022-11-16 11:30:19,699 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:19,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2022-11-16 11:30:19,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,704 INFO L175 Difference]: Start difference. First operand has 163 places, 157 transitions, 330 flow. Second operand 3 states and 489 transitions. [2022-11-16 11:30:19,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 158 transitions, 366 flow [2022-11-16 11:30:19,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 158 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:19,708 INFO L231 Difference]: Finished difference. Result has 162 places, 156 transitions, 328 flow [2022-11-16 11:30:19,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=162, PETRI_TRANSITIONS=156} [2022-11-16 11:30:19,710 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -24 predicate places. [2022-11-16 11:30:19,710 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 156 transitions, 328 flow [2022-11-16 11:30:19,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:19,711 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] [2022-11-16 11:30:19,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:30:19,711 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:19,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:19,712 INFO L85 PathProgramCache]: Analyzing trace with hash 295509474, now seen corresponding path program 1 times [2022-11-16 11:30:19,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:19,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620017038] [2022-11-16 11:30:19,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:19,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:19,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:19,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620017038] [2022-11-16 11:30:19,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620017038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:19,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:19,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:19,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355965413] [2022-11-16 11:30:19,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:19,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:19,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:19,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:19,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:19,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 188 [2022-11-16 11:30:19,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 156 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:19,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 188 [2022-11-16 11:30:19,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:19,859 INFO L130 PetriNetUnfolder]: 73/582 cut-off events. [2022-11-16 11:30:19,859 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:19,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 582 events. 73/582 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2834 event pairs, 50 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 755. Up to 107 conditions per place. [2022-11-16 11:30:19,865 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 16 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2022-11-16 11:30:19,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 157 transitions, 366 flow [2022-11-16 11:30:19,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:19,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:19,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2022-11-16 11:30:19,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8528368794326241 [2022-11-16 11:30:19,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2022-11-16 11:30:19,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2022-11-16 11:30:19,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:19,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2022-11-16 11:30:19,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,872 INFO L175 Difference]: Start difference. First operand has 162 places, 156 transitions, 328 flow. Second operand 3 states and 481 transitions. [2022-11-16 11:30:19,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 157 transitions, 366 flow [2022-11-16 11:30:19,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 157 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:19,876 INFO L231 Difference]: Finished difference. Result has 161 places, 155 transitions, 326 flow [2022-11-16 11:30:19,877 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=161, PETRI_TRANSITIONS=155} [2022-11-16 11:30:19,877 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -25 predicate places. [2022-11-16 11:30:19,877 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 155 transitions, 326 flow [2022-11-16 11:30:19,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:19,878 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] [2022-11-16 11:30:19,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:30:19,879 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:19,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:19,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1159770281, now seen corresponding path program 1 times [2022-11-16 11:30:19,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:19,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806502869] [2022-11-16 11:30:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:19,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:19,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:19,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806502869] [2022-11-16 11:30:19,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806502869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:19,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:19,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:19,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698715062] [2022-11-16 11:30:19,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:19,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:19,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:19,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:19,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:19,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 188 [2022-11-16 11:30:19,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 155 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:19,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 188 [2022-11-16 11:30:19,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:20,014 INFO L130 PetriNetUnfolder]: 63/564 cut-off events. [2022-11-16 11:30:20,014 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:20,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 564 events. 63/564 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2421 event pairs, 18 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 699. Up to 51 conditions per place. [2022-11-16 11:30:20,021 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 12 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2022-11-16 11:30:20,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 157 transitions, 358 flow [2022-11-16 11:30:20,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:20,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:20,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 495 transitions. [2022-11-16 11:30:20,023 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8776595744680851 [2022-11-16 11:30:20,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 495 transitions. [2022-11-16 11:30:20,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 495 transitions. [2022-11-16 11:30:20,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:20,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 495 transitions. [2022-11-16 11:30:20,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,028 INFO L175 Difference]: Start difference. First operand has 161 places, 155 transitions, 326 flow. Second operand 3 states and 495 transitions. [2022-11-16 11:30:20,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 157 transitions, 358 flow [2022-11-16 11:30:20,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 157 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:20,031 INFO L231 Difference]: Finished difference. Result has 161 places, 155 transitions, 330 flow [2022-11-16 11:30:20,032 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=161, PETRI_TRANSITIONS=155} [2022-11-16 11:30:20,032 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -25 predicate places. [2022-11-16 11:30:20,032 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 155 transitions, 330 flow [2022-11-16 11:30:20,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:20,033 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] [2022-11-16 11:30:20,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:30:20,033 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:20,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:20,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1839960714, now seen corresponding path program 1 times [2022-11-16 11:30:20,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:20,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752860395] [2022-11-16 11:30:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:20,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:20,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:20,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:20,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752860395] [2022-11-16 11:30:20,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752860395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:20,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:20,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:20,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952122723] [2022-11-16 11:30:20,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:20,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:20,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:20,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:20,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:20,079 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 188 [2022-11-16 11:30:20,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 155 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:20,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 188 [2022-11-16 11:30:20,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:20,185 INFO L130 PetriNetUnfolder]: 81/574 cut-off events. [2022-11-16 11:30:20,185 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 11:30:20,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 574 events. 81/574 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2849 event pairs, 58 based on Foata normal form. 0/560 useless extension candidates. Maximal degree in co-relation 767. Up to 123 conditions per place. [2022-11-16 11:30:20,191 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 16 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2022-11-16 11:30:20,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 156 transitions, 368 flow [2022-11-16 11:30:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2022-11-16 11:30:20,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8528368794326241 [2022-11-16 11:30:20,194 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2022-11-16 11:30:20,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2022-11-16 11:30:20,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:20,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2022-11-16 11:30:20,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,198 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,198 INFO L175 Difference]: Start difference. First operand has 161 places, 155 transitions, 330 flow. Second operand 3 states and 481 transitions. [2022-11-16 11:30:20,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 156 transitions, 368 flow [2022-11-16 11:30:20,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 156 transitions, 366 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:30:20,202 INFO L231 Difference]: Finished difference. Result has 161 places, 154 transitions, 330 flow [2022-11-16 11:30:20,202 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=161, PETRI_TRANSITIONS=154} [2022-11-16 11:30:20,203 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -25 predicate places. [2022-11-16 11:30:20,203 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 154 transitions, 330 flow [2022-11-16 11:30:20,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,204 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:20,204 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] [2022-11-16 11:30:20,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:30:20,204 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-16 11:30:20,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:20,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1667479015, now seen corresponding path program 1 times [2022-11-16 11:30:20,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:20,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551826188] [2022-11-16 11:30:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:20,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:20,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:20,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551826188] [2022-11-16 11:30:20,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551826188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:20,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:20,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:20,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956631687] [2022-11-16 11:30:20,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:20,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:20,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:20,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:20,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:20,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 188 [2022-11-16 11:30:20,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 154 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:20,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 188 [2022-11-16 11:30:20,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:20,357 INFO L130 PetriNetUnfolder]: 73/562 cut-off events. [2022-11-16 11:30:20,357 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:20,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 562 events. 73/562 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2634 event pairs, 58 based on Foata normal form. 0/548 useless extension candidates. Maximal degree in co-relation 751. Up to 123 conditions per place. [2022-11-16 11:30:20,362 INFO L137 encePairwiseOnDemand]: 185/188 looper letters, 0 selfloop transitions, 0 changer transitions 155/155 dead transitions. [2022-11-16 11:30:20,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 155 transitions, 372 flow [2022-11-16 11:30:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2022-11-16 11:30:20,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8404255319148937 [2022-11-16 11:30:20,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2022-11-16 11:30:20,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2022-11-16 11:30:20,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:20,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2022-11-16 11:30:20,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,368 INFO L175 Difference]: Start difference. First operand has 161 places, 154 transitions, 330 flow. Second operand 3 states and 474 transitions. [2022-11-16 11:30:20,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 155 transitions, 372 flow [2022-11-16 11:30:20,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 155 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:20,371 INFO L231 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2022-11-16 11:30:20,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2022-11-16 11:30:20,372 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -26 predicate places. [2022-11-16 11:30:20,372 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2022-11-16 11:30:20,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-16 11:30:20,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-16 11:30:20,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-16 11:30:20,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-16 11:30:20,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-16 11:30:20,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-16 11:30:20,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-16 11:30:20,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-16 11:30:20,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-16 11:30:20,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-16 11:30:20,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-16 11:30:20,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-16 11:30:20,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-16 11:30:20,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-16 11:30:20,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-16 11:30:20,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-16 11:30:20,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-16 11:30:20,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-16 11:30:20,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-16 11:30:20,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-16 11:30:20,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-16 11:30:20,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-16 11:30:20,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-16 11:30:20,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-16 11:30:20,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-16 11:30:20,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-16 11:30:20,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-16 11:30:20,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-16 11:30:20,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-16 11:30:20,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-16 11:30:20,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-16 11:30:20,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-16 11:30:20,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-16 11:30:20,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-16 11:30:20,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-16 11:30:20,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-16 11:30:20,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-16 11:30:20,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-16 11:30:20,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-16 11:30:20,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-16 11:30:20,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-16 11:30:20,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-16 11:30:20,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-16 11:30:20,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-16 11:30:20,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-16 11:30:20,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-16 11:30:20,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:30:20,385 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:20,391 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:30:20,391 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:30:20,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:30:20 BasicIcfg [2022-11-16 11:30:20,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:30:20,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:30:20,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:30:20,398 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:30:20,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:15" (3/4) ... [2022-11-16 11:30:20,401 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:30:20,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-11-16 11:30:20,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-11-16 11:30:20,412 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2022-11-16 11:30:20,413 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-16 11:30:20,413 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:30:20,413 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:30:20,450 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:30:20,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:30:20,451 INFO L158 Benchmark]: Toolchain (without parser) took 6211.17ms. Allocated memory was 90.2MB in the beginning and 209.7MB in the end (delta: 119.5MB). Free memory was 64.3MB in the beginning and 94.2MB in the end (delta: -29.9MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. [2022-11-16 11:30:20,451 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:20,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.28ms. Allocated memory is still 90.2MB. Free memory was 64.0MB in the beginning and 54.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:30:20,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.40ms. Allocated memory is still 90.2MB. Free memory was 54.6MB in the beginning and 52.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:30:20,452 INFO L158 Benchmark]: Boogie Preprocessor took 38.61ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 50.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:30:20,452 INFO L158 Benchmark]: RCFGBuilder took 979.55ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 50.7MB in the beginning and 85.0MB in the end (delta: -34.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2022-11-16 11:30:20,453 INFO L158 Benchmark]: TraceAbstraction took 4437.66ms. Allocated memory was 125.8MB in the beginning and 209.7MB in the end (delta: 83.9MB). Free memory was 84.7MB in the beginning and 97.3MB in the end (delta: -12.6MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2022-11-16 11:30:20,453 INFO L158 Benchmark]: Witness Printer took 52.99ms. Allocated memory is still 209.7MB. Free memory was 97.3MB in the beginning and 94.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:30:20,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.28ms. Allocated memory is still 90.2MB. Free memory was 64.0MB in the beginning and 54.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.40ms. Allocated memory is still 90.2MB. Free memory was 54.6MB in the beginning and 52.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.61ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 50.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 979.55ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 50.7MB in the beginning and 85.0MB in the end (delta: -34.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4437.66ms. Allocated memory was 125.8MB in the beginning and 209.7MB in the end (delta: 83.9MB). Free memory was 84.7MB in the beginning and 97.3MB in the end (delta: -12.6MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. * Witness Printer took 52.99ms. Allocated memory is still 209.7MB. Free memory was 97.3MB in the beginning and 94.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 242 locations, 46 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 381 IncrementalHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 127 mSDtfsCounter, 381 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 886 NumberOfCodeBlocks, 886 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 869 ConstructedInterpolants, 0 QuantifiedInterpolants, 913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:30:20,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935f5ba6-5968-4701-8a41-58315958f52f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE