./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8 --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 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 --- 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-2329fc7 [2022-12-13 12:31:07,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:31:07,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:31:07,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:31:07,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:31:07,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:31:07,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:31:07,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:31:07,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:31:07,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:31:07,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:31:07,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:31:07,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:31:07,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:31:07,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:31:07,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:31:07,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:31:07,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:31:07,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:31:07,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:31:07,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:31:07,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:31:07,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:31:07,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:31:07,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:31:07,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:31:07,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:31:07,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:31:07,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:31:07,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:31:07,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:31:07,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:31:07,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:31:07,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:31:07,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:31:07,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:31:07,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:31:07,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:31:07,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:31:07,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:31:07,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:31:07,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 12:31:07,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:31:07,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:31:07,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:31:07,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:31:07,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:31:07,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:31:07,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:31:07,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:31:07,926 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:31:07,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:31:07,926 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:31:07,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:31:07,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:31:07,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:31:07,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:31:07,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:31:07,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:31:07,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:31:07,934 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 12:31:07,934 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:31:07,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:31:07,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:31:07,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:31:07,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:31:07,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:31:07,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:31:07,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:31:07,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:31:07,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:31:07,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:31:07,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:31:07,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:31:07,936 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:31:07,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:31:07,937 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:31:07,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:31:07,937 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:31:07,937 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 [2022-12-13 12:31:08,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:31:08,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:31:08,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:31:08,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:31:08,141 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:31:08,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2022-12-13 12:31:10,794 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:31:10,977 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:31:10,977 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2022-12-13 12:31:10,987 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/data/4141e7202/b9d854514468427e95ca0178e5c71965/FLAG0cdbf1d33 [2022-12-13 12:31:10,998 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/data/4141e7202/b9d854514468427e95ca0178e5c71965 [2022-12-13 12:31:11,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:31:11,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:31:11,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:31:11,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:31:11,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:31:11,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:31:10" (1/1) ... [2022-12-13 12:31:11,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bdfb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11, skipping insertion in model container [2022-12-13 12:31:11,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:31:10" (1/1) ... [2022-12-13 12:31:11,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:31:11,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:31:11,264 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i[30481,30494] [2022-12-13 12:31:11,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:31:11,275 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:31:11,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i[30481,30494] [2022-12-13 12:31:11,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:31:11,322 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:31:11,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11 WrapperNode [2022-12-13 12:31:11,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:31:11,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:31:11,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:31:11,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:31:11,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,351 INFO L138 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 118 [2022-12-13 12:31:11,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:31:11,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:31:11,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:31:11,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:31:11,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:31:11,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:31:11,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:31:11,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:31:11,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:31:11,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:31:11,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:31:11,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bde7ad-4085-4472-8a43-82b5eae9726a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:31:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 12:31:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 12:31:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:31:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:31:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:31:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:31:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:31:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:31:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:31:11,422 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:31:11,512 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:31:11,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:31:11,697 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:31:11,789 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:31:11,789 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:31:11,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:11 BoogieIcfgContainer [2022-12-13 12:31:11,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:31:11,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:31:11,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:31:11,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:31:11,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:31:10" (1/3) ... [2022-12-13 12:31:11,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637fe056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:31:11, skipping insertion in model container [2022-12-13 12:31:11,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (2/3) ... [2022-12-13 12:31:11,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637fe056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:31:11, skipping insertion in model container [2022-12-13 12:31:11,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:11" (3/3) ... [2022-12-13 12:31:11,797 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2022-12-13 12:31:11,803 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 12:31:11,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:31:11,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-12-13 12:31:11,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:31:11,850 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:31:11,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 97 transitions, 199 flow [2022-12-13 12:31:11,910 INFO L130 PetriNetUnfolder]: 5/108 cut-off events. [2022-12-13 12:31:11,910 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:31:11,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 5/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2022-12-13 12:31:11,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 97 transitions, 199 flow [2022-12-13 12:31:11,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 97 transitions, 199 flow [2022-12-13 12:31:11,922 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:31:11,930 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 97 transitions, 199 flow [2022-12-13 12:31:11,932 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 97 transitions, 199 flow [2022-12-13 12:31:11,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 97 transitions, 199 flow [2022-12-13 12:31:11,952 INFO L130 PetriNetUnfolder]: 5/108 cut-off events. [2022-12-13 12:31:11,952 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:31:11,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 5/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2022-12-13 12:31:11,954 INFO L119 LiptonReduction]: Number of co-enabled transitions 1848 [2022-12-13 12:31:13,738 INFO L134 LiptonReduction]: Checked pairs total: 1795 [2022-12-13 12:31:13,738 INFO L136 LiptonReduction]: Total number of compositions: 139 [2022-12-13 12:31:13,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:31:13,759 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;@153fee47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:31:13,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-12-13 12:31:13,762 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 12:31:13,762 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:31:13,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:13,763 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 12:31:13,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 12:31:13,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:13,768 INFO L85 PathProgramCache]: Analyzing trace with hash 18359997, now seen corresponding path program 1 times [2022-12-13 12:31:13,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:13,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997403849] [2022-12-13 12:31:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:13,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:31:13,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:13,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997403849] [2022-12-13 12:31:13,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997403849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:13,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:13,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:31:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970622525] [2022-12-13 12:31:13,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:13,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:31:13,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:13,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:31:13,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:31:13,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 236 [2022-12-13 12:31:13,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 49 flow. Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:13,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:13,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 236 [2022-12-13 12:31:13,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:13,961 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 12:31:13,962 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:31:13,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 3/9 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-12-13 12:31:13,963 INFO L137 encePairwiseOnDemand]: 219/236 looper letters, 4 selfloop transitions, 0 changer transitions 0/5 dead transitions. [2022-12-13 12:31:13,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 5 transitions, 23 flow [2022-12-13 12:31:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:31:13,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:31:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 177 transitions. [2022-12-13 12:31:13,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-13 12:31:13,975 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 177 transitions. [2022-12-13 12:31:13,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 177 transitions. [2022-12-13 12:31:13,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:31:13,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 177 transitions. [2022-12-13 12:31:13,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:13,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:13,984 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:13,985 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 49 flow. Second operand 2 states and 177 transitions. [2022-12-13 12:31:13,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 5 transitions, 23 flow [2022-12-13 12:31:13,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 5 transitions, 23 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:31:13,988 INFO L231 Difference]: Finished difference. Result has 9 places, 5 transitions, 15 flow [2022-12-13 12:31:13,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=15, PETRI_PLACES=9, PETRI_TRANSITIONS=5} [2022-12-13 12:31:13,992 INFO L288 CegarLoopForPetriNet]: 25 programPoint places, -16 predicate places. [2022-12-13 12:31:13,993 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 5 transitions, 15 flow [2022-12-13 12:31:13,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:13,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:13,993 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 12:31:13,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:31:13,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 12:31:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:13,994 INFO L85 PathProgramCache]: Analyzing trace with hash 464068977, now seen corresponding path program 1 times [2022-12-13 12:31:13,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:13,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958625234] [2022-12-13 12:31:13,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:13,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:14,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:31:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:14,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:31:14,038 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:31:14,040 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-12-13 12:31:14,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-12-13 12:31:14,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-12-13 12:31:14,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-12-13 12:31:14,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-12-13 12:31:14,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-12-13 12:31:14,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-12-13 12:31:14,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-12-13 12:31:14,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-12-13 12:31:14,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-12-13 12:31:14,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-12-13 12:31:14,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-12-13 12:31:14,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-12-13 12:31:14,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-12-13 12:31:14,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-12-13 12:31:14,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-12-13 12:31:14,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-12-13 12:31:14,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-12-13 12:31:14,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-12-13 12:31:14,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2022-12-13 12:31:14,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2022-12-13 12:31:14,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-12-13 12:31:14,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-12-13 12:31:14,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-12-13 12:31:14,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-12-13 12:31:14,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-12-13 12:31:14,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-12-13 12:31:14,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-12-13 12:31:14,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-12-13 12:31:14,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-12-13 12:31:14,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-12-13 12:31:14,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:31:14,049 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:31:14,051 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 12:31:14,051 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 12:31:14,074 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:31:14,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 164 transitions, 340 flow [2022-12-13 12:31:14,121 INFO L130 PetriNetUnfolder]: 9/188 cut-off events. [2022-12-13 12:31:14,122 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 12:31:14,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 188 events. 9/188 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 468 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 145. Up to 6 conditions per place. [2022-12-13 12:31:14,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 164 transitions, 340 flow [2022-12-13 12:31:14,127 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 164 transitions, 340 flow [2022-12-13 12:31:14,127 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:31:14,127 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 164 transitions, 340 flow [2022-12-13 12:31:14,127 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 164 transitions, 340 flow [2022-12-13 12:31:14,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 164 transitions, 340 flow [2022-12-13 12:31:14,156 INFO L130 PetriNetUnfolder]: 9/188 cut-off events. [2022-12-13 12:31:14,157 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 12:31:14,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 188 events. 9/188 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 468 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 145. Up to 6 conditions per place. [2022-12-13 12:31:14,167 INFO L119 LiptonReduction]: Number of co-enabled transitions 12540 [2022-12-13 12:31:15,139 INFO L134 LiptonReduction]: Checked pairs total: 56481 [2022-12-13 12:31:15,140 INFO L136 LiptonReduction]: Total number of compositions: 103 [2022-12-13 12:31:15,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:31:15,142 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;@153fee47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:31:15,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-12-13 12:31:15,143 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 12:31:15,144 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:31:15,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:15,144 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 12:31:15,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 12:31:15,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:15,144 INFO L85 PathProgramCache]: Analyzing trace with hash 29357015, now seen corresponding path program 1 times [2022-12-13 12:31:15,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:15,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730001206] [2022-12-13 12:31:15,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:15,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:31:15,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:15,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730001206] [2022-12-13 12:31:15,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730001206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:15,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:15,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:31:15,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864660935] [2022-12-13 12:31:15,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:15,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:31:15,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:15,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:31:15,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:31:15,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 267 [2022-12-13 12:31:15,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 196 flow. Second operand has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:15,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 267 [2022-12-13 12:31:15,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:15,331 INFO L130 PetriNetUnfolder]: 575/1454 cut-off events. [2022-12-13 12:31:15,331 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-12-13 12:31:15,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 1454 events. 575/1454 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10191 event pairs, 519 based on Foata normal form. 112/1380 useless extension candidates. Maximal degree in co-relation 1921. Up to 970 conditions per place. [2022-12-13 12:31:15,337 INFO L137 encePairwiseOnDemand]: 247/267 looper letters, 31 selfloop transitions, 0 changer transitions 0/72 dead transitions. [2022-12-13 12:31:15,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 218 flow [2022-12-13 12:31:15,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:31:15,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:31:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 307 transitions. [2022-12-13 12:31:15,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5749063670411985 [2022-12-13 12:31:15,339 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 307 transitions. [2022-12-13 12:31:15,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 307 transitions. [2022-12-13 12:31:15,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:31:15,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 307 transitions. [2022-12-13 12:31:15,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,342 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,342 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 196 flow. Second operand 2 states and 307 transitions. [2022-12-13 12:31:15,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 218 flow [2022-12-13 12:31:15,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 216 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-13 12:31:15,345 INFO L231 Difference]: Finished difference. Result has 76 places, 72 transitions, 154 flow [2022-12-13 12:31:15,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=154, PETRI_PLACES=76, PETRI_TRANSITIONS=72} [2022-12-13 12:31:15,345 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, -18 predicate places. [2022-12-13 12:31:15,346 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 154 flow [2022-12-13 12:31:15,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:15,346 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:31:15,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:31:15,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 12:31:15,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:15,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1852654407, now seen corresponding path program 1 times [2022-12-13 12:31:15,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:15,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656026584] [2022-12-13 12:31:15,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:15,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:31:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:15,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656026584] [2022-12-13 12:31:15,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656026584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:15,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:15,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:31:15,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078077612] [2022-12-13 12:31:15,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:15,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:31:15,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:15,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:31:15,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:31:15,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2022-12-13 12:31:15,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:15,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2022-12-13 12:31:15,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:15,673 INFO L130 PetriNetUnfolder]: 1226/2903 cut-off events. [2022-12-13 12:31:15,673 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-12-13 12:31:15,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 2903 events. 1226/2903 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 22863 event pairs, 417 based on Foata normal form. 0/2646 useless extension candidates. Maximal degree in co-relation 5117. Up to 1475 conditions per place. [2022-12-13 12:31:15,684 INFO L137 encePairwiseOnDemand]: 251/267 looper letters, 66 selfloop transitions, 12 changer transitions 0/108 dead transitions. [2022-12-13 12:31:15,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 108 transitions, 387 flow [2022-12-13 12:31:15,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:31:15,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:31:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2022-12-13 12:31:15,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5218476903870163 [2022-12-13 12:31:15,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 418 transitions. [2022-12-13 12:31:15,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 418 transitions. [2022-12-13 12:31:15,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:31:15,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 418 transitions. [2022-12-13 12:31:15,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,689 INFO L175 Difference]: Start difference. First operand has 76 places, 72 transitions, 154 flow. Second operand 3 states and 418 transitions. [2022-12-13 12:31:15,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 108 transitions, 387 flow [2022-12-13 12:31:15,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 108 transitions, 387 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:31:15,691 INFO L231 Difference]: Finished difference. Result has 80 places, 84 transitions, 258 flow [2022-12-13 12:31:15,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=80, PETRI_TRANSITIONS=84} [2022-12-13 12:31:15,691 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, -14 predicate places. [2022-12-13 12:31:15,692 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 84 transitions, 258 flow [2022-12-13 12:31:15,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:15,692 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:31:15,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:31:15,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 12:31:15,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:15,693 INFO L85 PathProgramCache]: Analyzing trace with hash -579351757, now seen corresponding path program 1 times [2022-12-13 12:31:15,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:15,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386572997] [2022-12-13 12:31:15,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:15,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:15,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:31:15,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:15,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386572997] [2022-12-13 12:31:15,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386572997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:15,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:15,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:31:15,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922354843] [2022-12-13 12:31:15,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:15,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:31:15,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:15,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:31:15,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:31:15,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 267 [2022-12-13 12:31:15,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 84 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:15,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:15,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 267 [2022-12-13 12:31:15,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:15,994 INFO L130 PetriNetUnfolder]: 1168/2850 cut-off events. [2022-12-13 12:31:15,995 INFO L131 PetriNetUnfolder]: For 763/781 co-relation queries the response was YES. [2022-12-13 12:31:15,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5790 conditions, 2850 events. 1168/2850 cut-off events. For 763/781 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 22937 event pairs, 816 based on Foata normal form. 2/2507 useless extension candidates. Maximal degree in co-relation 5783. Up to 1781 conditions per place. [2022-12-13 12:31:16,006 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 53 selfloop transitions, 11 changer transitions 0/105 dead transitions. [2022-12-13 12:31:16,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 105 transitions, 459 flow [2022-12-13 12:31:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:31:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:31:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2022-12-13 12:31:16,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49812734082397003 [2022-12-13 12:31:16,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2022-12-13 12:31:16,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2022-12-13 12:31:16,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:31:16,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2022-12-13 12:31:16,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:16,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:16,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:16,011 INFO L175 Difference]: Start difference. First operand has 80 places, 84 transitions, 258 flow. Second operand 3 states and 399 transitions. [2022-12-13 12:31:16,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 105 transitions, 459 flow [2022-12-13 12:31:16,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 425 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:31:16,014 INFO L231 Difference]: Finished difference. Result has 82 places, 93 transitions, 332 flow [2022-12-13 12:31:16,015 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=82, PETRI_TRANSITIONS=93} [2022-12-13 12:31:16,015 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, -12 predicate places. [2022-12-13 12:31:16,015 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 93 transitions, 332 flow [2022-12-13 12:31:16,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:16,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:16,016 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 12:31:16,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:31:16,016 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 12:31:16,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:16,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2013809457, now seen corresponding path program 1 times [2022-12-13 12:31:16,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:16,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271214200] [2022-12-13 12:31:16,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:16,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:16,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:31:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:16,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:31:16,034 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:31:16,034 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2022-12-13 12:31:16,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-12-13 12:31:16,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-12-13 12:31:16,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-12-13 12:31:16,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-12-13 12:31:16,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-12-13 12:31:16,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-12-13 12:31:16,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-12-13 12:31:16,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-12-13 12:31:16,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-12-13 12:31:16,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-12-13 12:31:16,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-12-13 12:31:16,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-12-13 12:31:16,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-12-13 12:31:16,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-12-13 12:31:16,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-12-13 12:31:16,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2022-12-13 12:31:16,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2022-12-13 12:31:16,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-12-13 12:31:16,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-12-13 12:31:16,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-12-13 12:31:16,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-12-13 12:31:16,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-12-13 12:31:16,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-12-13 12:31:16,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-12-13 12:31:16,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-12-13 12:31:16,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-12-13 12:31:16,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-12-13 12:31:16,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-12-13 12:31:16,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-12-13 12:31:16,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-12-13 12:31:16,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-12-13 12:31:16,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-12-13 12:31:16,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-12-13 12:31:16,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-12-13 12:31:16,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-12-13 12:31:16,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-12-13 12:31:16,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-12-13 12:31:16,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-12-13 12:31:16,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-12-13 12:31:16,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-12-13 12:31:16,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-12-13 12:31:16,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-12-13 12:31:16,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-12-13 12:31:16,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-12-13 12:31:16,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-12-13 12:31:16,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:31:16,041 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 12:31:16,041 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 12:31:16,041 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-13 12:31:16,066 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:31:16,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 231 transitions, 483 flow [2022-12-13 12:31:16,091 INFO L130 PetriNetUnfolder]: 13/268 cut-off events. [2022-12-13 12:31:16,091 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 12:31:16,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 268 events. 13/268 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 888 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-12-13 12:31:16,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 231 transitions, 483 flow [2022-12-13 12:31:16,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 231 transitions, 483 flow [2022-12-13 12:31:16,095 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:31:16,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 231 transitions, 483 flow [2022-12-13 12:31:16,095 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 231 transitions, 483 flow [2022-12-13 12:31:16,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 231 transitions, 483 flow [2022-12-13 12:31:16,117 INFO L130 PetriNetUnfolder]: 13/268 cut-off events. [2022-12-13 12:31:16,118 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 12:31:16,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 268 events. 13/268 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 888 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-12-13 12:31:16,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 32076 [2022-12-13 12:31:17,330 INFO L134 LiptonReduction]: Checked pairs total: 139464 [2022-12-13 12:31:17,330 INFO L136 LiptonReduction]: Total number of compositions: 150 [2022-12-13 12:31:17,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:31:17,332 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;@153fee47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:31:17,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-12-13 12:31:17,333 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 12:31:17,333 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:31:17,333 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:17,334 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 12:31:17,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 12:31:17,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:17,334 INFO L85 PathProgramCache]: Analyzing trace with hash 43140969, now seen corresponding path program 1 times [2022-12-13 12:31:17,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:17,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946455679] [2022-12-13 12:31:17,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:17,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:31:17,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:17,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946455679] [2022-12-13 12:31:17,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946455679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:17,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:17,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:31:17,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385701360] [2022-12-13 12:31:17,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:17,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:31:17,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:17,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:31:17,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:31:17,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 381 [2022-12-13 12:31:17,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 138 transitions, 297 flow. Second operand has 2 states, 2 states have (on average 180.0) internal successors, (360), 2 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:17,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:17,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 381 [2022-12-13 12:31:17,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:18,939 INFO L130 PetriNetUnfolder]: 13351/24973 cut-off events. [2022-12-13 12:31:18,939 INFO L131 PetriNetUnfolder]: For 1147/1147 co-relation queries the response was YES. [2022-12-13 12:31:18,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44564 conditions, 24973 events. 13351/24973 cut-off events. For 1147/1147 co-relation queries the response was YES. Maximal size of possible extension queue 938. Compared 229590 event pairs, 12179 based on Foata normal form. 3154/24831 useless extension candidates. Maximal degree in co-relation 27141. Up to 18784 conditions per place. [2022-12-13 12:31:19,063 INFO L137 encePairwiseOnDemand]: 350/381 looper letters, 46 selfloop transitions, 0 changer transitions 0/106 dead transitions. [2022-12-13 12:31:19,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 106 transitions, 325 flow [2022-12-13 12:31:19,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:31:19,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:31:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 433 transitions. [2022-12-13 12:31:19,065 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.568241469816273 [2022-12-13 12:31:19,065 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 433 transitions. [2022-12-13 12:31:19,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 433 transitions. [2022-12-13 12:31:19,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:31:19,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 433 transitions. [2022-12-13 12:31:19,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:19,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:19,068 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:19,068 INFO L175 Difference]: Start difference. First operand has 139 places, 138 transitions, 297 flow. Second operand 2 states and 433 transitions. [2022-12-13 12:31:19,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 106 transitions, 325 flow [2022-12-13 12:31:19,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 319 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-12-13 12:31:19,071 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 227 flow [2022-12-13 12:31:19,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=227, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2022-12-13 12:31:19,071 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -28 predicate places. [2022-12-13 12:31:19,071 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 227 flow [2022-12-13 12:31:19,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 180.0) internal successors, (360), 2 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:19,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:19,072 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:31:19,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:31:19,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 12:31:19,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:19,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1491164852, now seen corresponding path program 1 times [2022-12-13 12:31:19,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:19,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739759447] [2022-12-13 12:31:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:19,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:31:19,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:19,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739759447] [2022-12-13 12:31:19,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739759447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:19,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:19,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:31:19,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819352092] [2022-12-13 12:31:19,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:19,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:31:19,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:19,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:31:19,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:31:19,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 381 [2022-12-13 12:31:19,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:19,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:19,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 381 [2022-12-13 12:31:19,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:23,941 INFO L130 PetriNetUnfolder]: 45873/84198 cut-off events. [2022-12-13 12:31:23,942 INFO L131 PetriNetUnfolder]: For 1366/1366 co-relation queries the response was YES. [2022-12-13 12:31:24,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152002 conditions, 84198 events. 45873/84198 cut-off events. For 1366/1366 co-relation queries the response was YES. Maximal size of possible extension queue 2757. Compared 875644 event pairs, 17811 based on Foata normal form. 0/75383 useless extension candidates. Maximal degree in co-relation 151996. Up to 43026 conditions per place. [2022-12-13 12:31:24,285 INFO L137 encePairwiseOnDemand]: 357/381 looper letters, 98 selfloop transitions, 18 changer transitions 0/160 dead transitions. [2022-12-13 12:31:24,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 160 transitions, 577 flow [2022-12-13 12:31:24,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:31:24,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:31:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 584 transitions. [2022-12-13 12:31:24,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.510936132983377 [2022-12-13 12:31:24,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 584 transitions. [2022-12-13 12:31:24,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 584 transitions. [2022-12-13 12:31:24,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:31:24,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 584 transitions. [2022-12-13 12:31:24,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:24,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:24,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:24,290 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 227 flow. Second operand 3 states and 584 transitions. [2022-12-13 12:31:24,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 160 transitions, 577 flow [2022-12-13 12:31:24,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 160 transitions, 577 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:31:24,293 INFO L231 Difference]: Finished difference. Result has 115 places, 124 transitions, 383 flow [2022-12-13 12:31:24,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=115, PETRI_TRANSITIONS=124} [2022-12-13 12:31:24,293 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -24 predicate places. [2022-12-13 12:31:24,294 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 124 transitions, 383 flow [2022-12-13 12:31:24,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:24,294 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:24,294 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:31:24,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:31:24,294 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 12:31:24,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:24,295 INFO L85 PathProgramCache]: Analyzing trace with hash -886546994, now seen corresponding path program 1 times [2022-12-13 12:31:24,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:24,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334245697] [2022-12-13 12:31:24,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:24,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:24,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:31:24,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:24,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334245697] [2022-12-13 12:31:24,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334245697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:24,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:24,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:31:24,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192099103] [2022-12-13 12:31:24,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:24,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:31:24,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:24,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:31:24,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:31:24,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 381 [2022-12-13 12:31:24,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 124 transitions, 383 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:24,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:24,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 381 [2022-12-13 12:31:24,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:29,940 INFO L130 PetriNetUnfolder]: 43664/83263 cut-off events. [2022-12-13 12:31:29,940 INFO L131 PetriNetUnfolder]: For 26661/27669 co-relation queries the response was YES. [2022-12-13 12:31:30,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175227 conditions, 83263 events. 43664/83263 cut-off events. For 26661/27669 co-relation queries the response was YES. Maximal size of possible extension queue 2881. Compared 904888 event pairs, 29369 based on Foata normal form. 100/72601 useless extension candidates. Maximal degree in co-relation 175219. Up to 55630 conditions per place. [2022-12-13 12:31:30,406 INFO L137 encePairwiseOnDemand]: 369/381 looper letters, 84 selfloop transitions, 21 changer transitions 0/166 dead transitions. [2022-12-13 12:31:30,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 166 transitions, 741 flow [2022-12-13 12:31:30,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:31:30,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:31:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2022-12-13 12:31:30,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4969378827646544 [2022-12-13 12:31:30,411 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2022-12-13 12:31:30,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2022-12-13 12:31:30,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:31:30,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2022-12-13 12:31:30,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:30,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:30,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:30,416 INFO L175 Difference]: Start difference. First operand has 115 places, 124 transitions, 383 flow. Second operand 3 states and 568 transitions. [2022-12-13 12:31:30,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 166 transitions, 741 flow [2022-12-13 12:31:30,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 166 transitions, 687 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:31:30,486 INFO L231 Difference]: Finished difference. Result has 117 places, 143 transitions, 545 flow [2022-12-13 12:31:30,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=117, PETRI_TRANSITIONS=143} [2022-12-13 12:31:30,486 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -22 predicate places. [2022-12-13 12:31:30,487 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 143 transitions, 545 flow [2022-12-13 12:31:30,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:30,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:30,487 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:31:30,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:31:30,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 12:31:30,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:30,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1570152690, now seen corresponding path program 1 times [2022-12-13 12:31:30,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:30,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540121987] [2022-12-13 12:31:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:30,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 12:31:30,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:30,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540121987] [2022-12-13 12:31:30,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540121987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:30,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:30,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:31:30,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401996397] [2022-12-13 12:31:30,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:30,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:31:30,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:30,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:31:30,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:31:30,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 381 [2022-12-13 12:31:30,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 143 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:30,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:30,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 381 [2022-12-13 12:31:30,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:36,633 INFO L130 PetriNetUnfolder]: 49784/92812 cut-off events. [2022-12-13 12:31:36,633 INFO L131 PetriNetUnfolder]: For 50889/54267 co-relation queries the response was YES. [2022-12-13 12:31:36,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210022 conditions, 92812 events. 49784/92812 cut-off events. For 50889/54267 co-relation queries the response was YES. Maximal size of possible extension queue 3255. Compared 1000315 event pairs, 30695 based on Foata normal form. 172/79500 useless extension candidates. Maximal degree in co-relation 210013. Up to 61605 conditions per place. [2022-12-13 12:31:37,169 INFO L137 encePairwiseOnDemand]: 369/381 looper letters, 105 selfloop transitions, 33 changer transitions 0/199 dead transitions. [2022-12-13 12:31:37,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 199 transitions, 1072 flow [2022-12-13 12:31:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:31:37,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:31:37,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2022-12-13 12:31:37,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4995625546806649 [2022-12-13 12:31:37,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2022-12-13 12:31:37,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2022-12-13 12:31:37,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:31:37,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2022-12-13 12:31:37,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:37,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:37,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:37,176 INFO L175 Difference]: Start difference. First operand has 117 places, 143 transitions, 545 flow. Second operand 3 states and 571 transitions. [2022-12-13 12:31:37,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 199 transitions, 1072 flow [2022-12-13 12:31:37,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 199 transitions, 1004 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:31:37,387 INFO L231 Difference]: Finished difference. Result has 119 places, 172 transitions, 857 flow [2022-12-13 12:31:37,387 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=857, PETRI_PLACES=119, PETRI_TRANSITIONS=172} [2022-12-13 12:31:37,388 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -20 predicate places. [2022-12-13 12:31:37,388 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 172 transitions, 857 flow [2022-12-13 12:31:37,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:37,388 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:37,388 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-12-13 12:31:37,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:31:37,388 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 12:31:37,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1853477098, now seen corresponding path program 1 times [2022-12-13 12:31:37,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:37,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519841488] [2022-12-13 12:31:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:37,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:37,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:31:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:37,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:31:37,408 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:31:37,408 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2022-12-13 12:31:37,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2022-12-13 12:31:37,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2022-12-13 12:31:37,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2022-12-13 12:31:37,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2022-12-13 12:31:37,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2022-12-13 12:31:37,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2022-12-13 12:31:37,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2022-12-13 12:31:37,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2022-12-13 12:31:37,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2022-12-13 12:31:37,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2022-12-13 12:31:37,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2022-12-13 12:31:37,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2022-12-13 12:31:37,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2022-12-13 12:31:37,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2022-12-13 12:31:37,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2022-12-13 12:31:37,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2022-12-13 12:31:37,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:31:37,414 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 12:31:37,414 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 12:31:37,415 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-12-13 12:31:37,442 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:31:37,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 298 transitions, 628 flow [2022-12-13 12:31:37,497 INFO L130 PetriNetUnfolder]: 17/348 cut-off events. [2022-12-13 12:31:37,497 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 12:31:37,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 348 events. 17/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1320 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 277. Up to 10 conditions per place. [2022-12-13 12:31:37,499 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 298 transitions, 628 flow [2022-12-13 12:31:37,503 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 298 transitions, 628 flow [2022-12-13 12:31:37,503 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:31:37,504 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 294 places, 298 transitions, 628 flow [2022-12-13 12:31:37,504 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 294 places, 298 transitions, 628 flow [2022-12-13 12:31:37,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 298 transitions, 628 flow [2022-12-13 12:31:37,556 INFO L130 PetriNetUnfolder]: 17/348 cut-off events. [2022-12-13 12:31:37,556 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 12:31:37,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 348 events. 17/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1320 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 277. Up to 10 conditions per place. [2022-12-13 12:31:37,574 INFO L119 LiptonReduction]: Number of co-enabled transitions 60456 [2022-12-13 12:31:39,081 INFO L134 LiptonReduction]: Checked pairs total: 269506 [2022-12-13 12:31:39,081 INFO L136 LiptonReduction]: Total number of compositions: 187 [2022-12-13 12:31:39,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:31:39,083 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;@153fee47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:31:39,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2022-12-13 12:31:39,085 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 12:31:39,085 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:31:39,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:31:39,085 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 12:31:39,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2022-12-13 12:31:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:39,086 INFO L85 PathProgramCache]: Analyzing trace with hash 60133513, now seen corresponding path program 1 times [2022-12-13 12:31:39,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:39,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25735729] [2022-12-13 12:31:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:39,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:39,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:31:39,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:39,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25735729] [2022-12-13 12:31:39,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25735729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:39,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:39,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:31:39,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600863404] [2022-12-13 12:31:39,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:39,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:31:39,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:39,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:31:39,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:31:39,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 485 [2022-12-13 12:31:39,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 178 transitions, 388 flow. Second operand has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:31:39,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:31:39,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 485 [2022-12-13 12:31:39,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:31:59,636 INFO L130 PetriNetUnfolder]: 192745/303155 cut-off events. [2022-12-13 12:31:59,636 INFO L131 PetriNetUnfolder]: For 22627/22627 co-relation queries the response was YES. [2022-12-13 12:32:00,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563746 conditions, 303155 events. 192745/303155 cut-off events. For 22627/22627 co-relation queries the response was YES. Maximal size of possible extension queue 8636. Compared 3072461 event pairs, 175381 based on Foata normal form. 56472/327932 useless extension candidates. Maximal degree in co-relation 37849. Up to 248476 conditions per place. [2022-12-13 12:32:01,486 INFO L137 encePairwiseOnDemand]: 446/485 looper letters, 57 selfloop transitions, 0 changer transitions 0/139 dead transitions. [2022-12-13 12:32:01,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 139 transitions, 424 flow [2022-12-13 12:32:01,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:32:01,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:32:01,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 552 transitions. [2022-12-13 12:32:01,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5690721649484536 [2022-12-13 12:32:01,489 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 552 transitions. [2022-12-13 12:32:01,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 552 transitions. [2022-12-13 12:32:01,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:32:01,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 552 transitions. [2022-12-13 12:32:01,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.0) internal successors, (552), 2 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:32:01,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:32:01,491 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:32:01,491 INFO L175 Difference]: Start difference. First operand has 181 places, 178 transitions, 388 flow. Second operand 2 states and 552 transitions. [2022-12-13 12:32:01,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 139 transitions, 424 flow [2022-12-13 12:32:01,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 139 transitions, 412 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 12:32:01,503 INFO L231 Difference]: Finished difference. Result has 145 places, 139 transitions, 298 flow [2022-12-13 12:32:01,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=485, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=145, PETRI_TRANSITIONS=139} [2022-12-13 12:32:01,503 INFO L288 CegarLoopForPetriNet]: 181 programPoint places, -36 predicate places. [2022-12-13 12:32:01,503 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 139 transitions, 298 flow [2022-12-13 12:32:01,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:32:01,504 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:32:01,504 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:32:01,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 12:32:01,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2022-12-13 12:32:01,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:01,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1953781609, now seen corresponding path program 1 times [2022-12-13 12:32:01,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:01,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195612446] [2022-12-13 12:32:01,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:01,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:32:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:32:01,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:32:01,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195612446] [2022-12-13 12:32:01,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195612446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:32:01,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:32:01,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:32:01,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183437650] [2022-12-13 12:32:01,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:32:01,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:32:01,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:32:01,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:32:01,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:32:01,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 485 [2022-12-13 12:32:01,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 139 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:32:01,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:32:01,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 485 [2022-12-13 12:32:01,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand