./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/fibonacci.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/fibonacci.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:19:25,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:19:25,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:19:26,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:19:26,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:19:26,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:19:26,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:19:26,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:19:26,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:19:26,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:19:26,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:19:26,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:19:26,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:19:26,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:19:26,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:19:26,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:19:26,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:19:26,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:19:26,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:19:26,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:19:26,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:19:26,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:19:26,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:19:26,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:19:26,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:19:26,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:19:26,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:19:26,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:19:26,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:19:26,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:19:26,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:19:26,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:19:26,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:19:26,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:19:26,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:19:26,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:19:26,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:19:26,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:19:26,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:19:26,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:19:26,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:19:26,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:19:26,139 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:19:26,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:19:26,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:19:26,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:19:26,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:19:26,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:19:26,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:19:26,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:19:26,143 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:19:26,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:19:26,144 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:19:26,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:19:26,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:19:26,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:19:26,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:19:26,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:19:26,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:19:26,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:19:26,146 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:19:26,146 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:19:26,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:19:26,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:19:26,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:19:26,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:19:26,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:19:26,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:19:26,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:19:26,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:19:26,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:19:26,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:19:26,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:19:26,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:19:26,150 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:19:26,151 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:19:26,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:19:26,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e [2022-11-16 12:19:26,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:19:26,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:19:26,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:19:26,518 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:19:26,519 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:19:26,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/fibonacci.wvr.c [2022-11-16 12:19:26,586 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/data/d930f0ffa/bda16d498502457ab06b28d1c241875a/FLAG8f959f0d4 [2022-11-16 12:19:27,084 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:19:27,085 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/sv-benchmarks/c/weaver/fibonacci.wvr.c [2022-11-16 12:19:27,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/data/d930f0ffa/bda16d498502457ab06b28d1c241875a/FLAG8f959f0d4 [2022-11-16 12:19:27,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/data/d930f0ffa/bda16d498502457ab06b28d1c241875a [2022-11-16 12:19:27,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:19:27,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:19:27,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:19:27,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:19:27,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:19:27,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430e3117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27, skipping insertion in model container [2022-11-16 12:19:27,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:19:27,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:19:27,759 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/sv-benchmarks/c/weaver/fibonacci.wvr.c[2330,2343] [2022-11-16 12:19:27,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:19:27,773 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:19:27,802 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/sv-benchmarks/c/weaver/fibonacci.wvr.c[2330,2343] [2022-11-16 12:19:27,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:19:27,821 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:19:27,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27 WrapperNode [2022-11-16 12:19:27,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:19:27,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:19:27,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:19:27,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:19:27,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,891 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 264 [2022-11-16 12:19:27,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:19:27,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:19:27,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:19:27,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:19:27,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,955 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:19:27,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:19:27,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:19:27,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:19:27,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (1/1) ... [2022-11-16 12:19:27,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:19:27,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:28,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:19:28,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:19:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:19:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:19:28,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:19:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:19:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:19:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:19:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:19:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:19:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:19:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:19:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:19:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:19:28,061 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:19:28,179 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:19:28,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:19:28,776 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:19:28,791 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:19:28,791 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:19:28,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:28 BoogieIcfgContainer [2022-11-16 12:19:28,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:19:28,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:19:28,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:19:28,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:19:28,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:19:27" (1/3) ... [2022-11-16 12:19:28,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1d1868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:19:28, skipping insertion in model container [2022-11-16 12:19:28,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:27" (2/3) ... [2022-11-16 12:19:28,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1d1868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:19:28, skipping insertion in model container [2022-11-16 12:19:28,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:28" (3/3) ... [2022-11-16 12:19:28,814 INFO L112 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2022-11-16 12:19:28,836 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:19:28,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:19:28,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-16 12:19:28,849 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:19:29,030 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:19:29,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 347 places, 355 transitions, 726 flow [2022-11-16 12:19:29,253 INFO L130 PetriNetUnfolder]: 15/353 cut-off events. [2022-11-16 12:19:29,254 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:19:29,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 353 events. 15/353 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 650 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2022-11-16 12:19:29,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 347 places, 355 transitions, 726 flow [2022-11-16 12:19:29,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 328 places, 335 transitions, 682 flow [2022-11-16 12:19:29,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:19:29,293 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;@2f8a0345, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:19:29,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-16 12:19:29,300 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2022-11-16 12:19:29,300 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:29,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:29,301 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:29,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:29,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:29,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1766429872, now seen corresponding path program 1 times [2022-11-16 12:19:29,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:29,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886670488] [2022-11-16 12:19:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:29,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:29,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:29,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886670488] [2022-11-16 12:19:29,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886670488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:29,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:29,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:29,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675516300] [2022-11-16 12:19:29,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:29,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:29,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:29,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:29,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:29,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 355 [2022-11-16 12:19:29,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 335 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:29,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:29,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 355 [2022-11-16 12:19:29,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:30,016 INFO L130 PetriNetUnfolder]: 26/909 cut-off events. [2022-11-16 12:19:30,016 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-16 12:19:30,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 909 events. 26/909 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4590 event pairs, 15 based on Foata normal form. 33/805 useless extension candidates. Maximal degree in co-relation 739. Up to 52 conditions per place. [2022-11-16 12:19:30,030 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 13 selfloop transitions, 2 changer transitions 1/323 dead transitions. [2022-11-16 12:19:30,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 323 transitions, 688 flow [2022-11-16 12:19:30,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:30,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1005 transitions. [2022-11-16 12:19:30,059 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9436619718309859 [2022-11-16 12:19:30,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1005 transitions. [2022-11-16 12:19:30,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1005 transitions. [2022-11-16 12:19:30,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:30,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1005 transitions. [2022-11-16 12:19:30,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,093 INFO L175 Difference]: Start difference. First operand has 328 places, 335 transitions, 682 flow. Second operand 3 states and 1005 transitions. [2022-11-16 12:19:30,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 323 transitions, 688 flow [2022-11-16 12:19:30,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 323 transitions, 680 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:19:30,109 INFO L231 Difference]: Finished difference. Result has 325 places, 322 transitions, 652 flow [2022-11-16 12:19:30,112 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=652, PETRI_PLACES=325, PETRI_TRANSITIONS=322} [2022-11-16 12:19:30,116 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -3 predicate places. [2022-11-16 12:19:30,117 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 322 transitions, 652 flow [2022-11-16 12:19:30,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:30,118 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:30,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:19:30,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:30,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1040997882, now seen corresponding path program 1 times [2022-11-16 12:19:30,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:30,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264953968] [2022-11-16 12:19:30,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:30,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:30,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:30,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264953968] [2022-11-16 12:19:30,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264953968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:30,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:30,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433336164] [2022-11-16 12:19:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:30,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:30,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:30,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:30,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:30,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 355 [2022-11-16 12:19:30,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 322 transitions, 652 flow. Second operand has 3 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:30,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 355 [2022-11-16 12:19:30,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:30,381 INFO L130 PetriNetUnfolder]: 17/428 cut-off events. [2022-11-16 12:19:30,381 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:19:30,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 428 events. 17/428 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1184 event pairs, 12 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 463. Up to 49 conditions per place. [2022-11-16 12:19:30,387 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 22 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2022-11-16 12:19:30,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 321 transitions, 698 flow [2022-11-16 12:19:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 976 transitions. [2022-11-16 12:19:30,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9164319248826291 [2022-11-16 12:19:30,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 976 transitions. [2022-11-16 12:19:30,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 976 transitions. [2022-11-16 12:19:30,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:30,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 976 transitions. [2022-11-16 12:19:30,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,401 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,401 INFO L175 Difference]: Start difference. First operand has 325 places, 322 transitions, 652 flow. Second operand 3 states and 976 transitions. [2022-11-16 12:19:30,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 321 transitions, 698 flow [2022-11-16 12:19:30,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 321 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:30,441 INFO L231 Difference]: Finished difference. Result has 323 places, 321 transitions, 650 flow [2022-11-16 12:19:30,441 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=650, PETRI_PLACES=323, PETRI_TRANSITIONS=321} [2022-11-16 12:19:30,442 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -5 predicate places. [2022-11-16 12:19:30,443 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 321 transitions, 650 flow [2022-11-16 12:19:30,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,444 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:30,444 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:30,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:19:30,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:30,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:30,445 INFO L85 PathProgramCache]: Analyzing trace with hash 634812308, now seen corresponding path program 1 times [2022-11-16 12:19:30,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:30,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900921912] [2022-11-16 12:19:30,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:30,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:30,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:30,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900921912] [2022-11-16 12:19:30,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900921912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:30,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:30,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:30,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148803526] [2022-11-16 12:19:30,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:30,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:30,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:30,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:30,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:30,514 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 355 [2022-11-16 12:19:30,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 321 transitions, 650 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:30,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 355 [2022-11-16 12:19:30,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:30,711 INFO L130 PetriNetUnfolder]: 15/527 cut-off events. [2022-11-16 12:19:30,712 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:19:30,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 527 events. 15/527 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1743 event pairs, 9 based on Foata normal form. 0/457 useless extension candidates. Maximal degree in co-relation 543. Up to 40 conditions per place. [2022-11-16 12:19:30,720 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 19 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2022-11-16 12:19:30,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 320 transitions, 690 flow [2022-11-16 12:19:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:30,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-16 12:19:30,726 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9220657276995305 [2022-11-16 12:19:30,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-16 12:19:30,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-16 12:19:30,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:30,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-16 12:19:30,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,739 INFO L175 Difference]: Start difference. First operand has 323 places, 321 transitions, 650 flow. Second operand 3 states and 982 transitions. [2022-11-16 12:19:30,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 320 transitions, 690 flow [2022-11-16 12:19:30,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 320 transitions, 686 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:30,747 INFO L231 Difference]: Finished difference. Result has 322 places, 320 transitions, 648 flow [2022-11-16 12:19:30,748 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=322, PETRI_TRANSITIONS=320} [2022-11-16 12:19:30,751 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -6 predicate places. [2022-11-16 12:19:30,751 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 320 transitions, 648 flow [2022-11-16 12:19:30,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,753 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:30,753 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:30,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:19:30,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:30,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:30,755 INFO L85 PathProgramCache]: Analyzing trace with hash 428932367, now seen corresponding path program 1 times [2022-11-16 12:19:30,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:30,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188757053] [2022-11-16 12:19:30,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:30,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:30,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:30,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:30,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188757053] [2022-11-16 12:19:30,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188757053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:30,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:30,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:30,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673831545] [2022-11-16 12:19:30,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:30,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:30,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:30,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:30,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:30,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 355 [2022-11-16 12:19:30,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 320 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:30,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:30,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 355 [2022-11-16 12:19:30,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:31,030 INFO L130 PetriNetUnfolder]: 7/431 cut-off events. [2022-11-16 12:19:31,030 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-16 12:19:31,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 431 events. 7/431 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1138 event pairs, 3 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 414. Up to 20 conditions per place. [2022-11-16 12:19:31,036 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 13 selfloop transitions, 2 changer transitions 0/319 dead transitions. [2022-11-16 12:19:31,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 319 transitions, 676 flow [2022-11-16 12:19:31,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:31,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:31,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 994 transitions. [2022-11-16 12:19:31,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2022-11-16 12:19:31,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 994 transitions. [2022-11-16 12:19:31,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 994 transitions. [2022-11-16 12:19:31,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:31,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 994 transitions. [2022-11-16 12:19:31,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,054 INFO L175 Difference]: Start difference. First operand has 322 places, 320 transitions, 648 flow. Second operand 3 states and 994 transitions. [2022-11-16 12:19:31,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 319 transitions, 676 flow [2022-11-16 12:19:31,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 319 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:31,062 INFO L231 Difference]: Finished difference. Result has 321 places, 319 transitions, 646 flow [2022-11-16 12:19:31,063 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=321, PETRI_TRANSITIONS=319} [2022-11-16 12:19:31,065 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -7 predicate places. [2022-11-16 12:19:31,065 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 319 transitions, 646 flow [2022-11-16 12:19:31,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:31,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:31,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:19:31,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:31,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash -228986694, now seen corresponding path program 1 times [2022-11-16 12:19:31,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:31,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554119256] [2022-11-16 12:19:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:31,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:31,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:31,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554119256] [2022-11-16 12:19:31,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554119256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:31,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:31,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:31,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305095826] [2022-11-16 12:19:31,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:31,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:31,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:31,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:31,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:31,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 355 [2022-11-16 12:19:31,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 319 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:31,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 355 [2022-11-16 12:19:31,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:31,306 INFO L130 PetriNetUnfolder]: 17/425 cut-off events. [2022-11-16 12:19:31,306 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 12:19:31,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 425 events. 17/425 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1385 event pairs, 12 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 427. Up to 49 conditions per place. [2022-11-16 12:19:31,312 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 22 selfloop transitions, 2 changer transitions 0/318 dead transitions. [2022-11-16 12:19:31,313 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 318 transitions, 692 flow [2022-11-16 12:19:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:31,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 976 transitions. [2022-11-16 12:19:31,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9164319248826291 [2022-11-16 12:19:31,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 976 transitions. [2022-11-16 12:19:31,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 976 transitions. [2022-11-16 12:19:31,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:31,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 976 transitions. [2022-11-16 12:19:31,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,326 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,327 INFO L175 Difference]: Start difference. First operand has 321 places, 319 transitions, 646 flow. Second operand 3 states and 976 transitions. [2022-11-16 12:19:31,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 318 transitions, 692 flow [2022-11-16 12:19:31,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 318 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:31,335 INFO L231 Difference]: Finished difference. Result has 320 places, 318 transitions, 644 flow [2022-11-16 12:19:31,335 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=320, PETRI_TRANSITIONS=318} [2022-11-16 12:19:31,336 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -8 predicate places. [2022-11-16 12:19:31,337 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 318 transitions, 644 flow [2022-11-16 12:19:31,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,338 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:31,338 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:31,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:19:31,339 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:31,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:31,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1223972859, now seen corresponding path program 1 times [2022-11-16 12:19:31,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:31,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548731798] [2022-11-16 12:19:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:31,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:31,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:31,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548731798] [2022-11-16 12:19:31,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548731798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:31,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:31,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449799293] [2022-11-16 12:19:31,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:31,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:31,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:31,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:31,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:31,401 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 355 [2022-11-16 12:19:31,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 318 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:31,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 355 [2022-11-16 12:19:31,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:31,533 INFO L130 PetriNetUnfolder]: 14/421 cut-off events. [2022-11-16 12:19:31,533 INFO L131 PetriNetUnfolder]: For 12/13 co-relation queries the response was YES. [2022-11-16 12:19:31,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 421 events. 14/421 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1183 event pairs, 9 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 407. Up to 40 conditions per place. [2022-11-16 12:19:31,539 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 19 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2022-11-16 12:19:31,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 317 transitions, 684 flow [2022-11-16 12:19:31,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-16 12:19:31,544 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9220657276995305 [2022-11-16 12:19:31,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-16 12:19:31,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-16 12:19:31,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:31,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-16 12:19:31,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,555 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,555 INFO L175 Difference]: Start difference. First operand has 320 places, 318 transitions, 644 flow. Second operand 3 states and 982 transitions. [2022-11-16 12:19:31,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 317 transitions, 684 flow [2022-11-16 12:19:31,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 317 transitions, 680 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:31,571 INFO L231 Difference]: Finished difference. Result has 319 places, 317 transitions, 642 flow [2022-11-16 12:19:31,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=319, PETRI_TRANSITIONS=317} [2022-11-16 12:19:31,575 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -9 predicate places. [2022-11-16 12:19:31,575 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 317 transitions, 642 flow [2022-11-16 12:19:31,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,578 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:31,578 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:31,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:19:31,579 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:31,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:31,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1171297910, now seen corresponding path program 1 times [2022-11-16 12:19:31,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:31,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952297151] [2022-11-16 12:19:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:31,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:31,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:31,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:31,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952297151] [2022-11-16 12:19:31,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952297151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:31,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:31,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:31,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048187519] [2022-11-16 12:19:31,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:31,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:31,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:31,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:31,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:31,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 355 [2022-11-16 12:19:31,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 317 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:31,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 355 [2022-11-16 12:19:31,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:31,894 INFO L130 PetriNetUnfolder]: 6/325 cut-off events. [2022-11-16 12:19:31,894 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 12:19:31,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 325 events. 6/325 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 695 event pairs, 3 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 283. Up to 19 conditions per place. [2022-11-16 12:19:31,900 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 12 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2022-11-16 12:19:31,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 316 transitions, 668 flow [2022-11-16 12:19:31,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 993 transitions. [2022-11-16 12:19:31,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9323943661971831 [2022-11-16 12:19:31,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 993 transitions. [2022-11-16 12:19:31,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 993 transitions. [2022-11-16 12:19:31,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:31,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 993 transitions. [2022-11-16 12:19:31,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.0) internal successors, (993), 3 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,916 INFO L175 Difference]: Start difference. First operand has 319 places, 317 transitions, 642 flow. Second operand 3 states and 993 transitions. [2022-11-16 12:19:31,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 316 transitions, 668 flow [2022-11-16 12:19:31,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 316 transitions, 664 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:31,926 INFO L231 Difference]: Finished difference. Result has 318 places, 316 transitions, 640 flow [2022-11-16 12:19:31,927 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=318, PETRI_TRANSITIONS=316} [2022-11-16 12:19:31,928 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -10 predicate places. [2022-11-16 12:19:31,929 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 316 transitions, 640 flow [2022-11-16 12:19:31,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:31,930 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:31,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:19:31,931 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:31,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:31,932 INFO L85 PathProgramCache]: Analyzing trace with hash -621064925, now seen corresponding path program 1 times [2022-11-16 12:19:31,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:31,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212033626] [2022-11-16 12:19:31,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:31,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:32,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:32,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212033626] [2022-11-16 12:19:32,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212033626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:32,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:32,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:32,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500018315] [2022-11-16 12:19:32,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:32,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:32,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:32,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:32,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:32,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 355 [2022-11-16 12:19:32,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 316 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:32,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 355 [2022-11-16 12:19:32,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:32,240 INFO L130 PetriNetUnfolder]: 14/413 cut-off events. [2022-11-16 12:19:32,240 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:19:32,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 413 events. 14/413 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1115 event pairs, 6 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 389. Up to 26 conditions per place. [2022-11-16 12:19:32,247 INFO L137 encePairwiseOnDemand]: 348/355 looper letters, 15 selfloop transitions, 3 changer transitions 0/313 dead transitions. [2022-11-16 12:19:32,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 313 transitions, 671 flow [2022-11-16 12:19:32,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:32,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:32,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-16 12:19:32,251 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9220657276995305 [2022-11-16 12:19:32,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-16 12:19:32,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-16 12:19:32,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:32,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-16 12:19:32,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,260 INFO L175 Difference]: Start difference. First operand has 318 places, 316 transitions, 640 flow. Second operand 3 states and 982 transitions. [2022-11-16 12:19:32,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 313 transitions, 671 flow [2022-11-16 12:19:32,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 313 transitions, 667 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:32,268 INFO L231 Difference]: Finished difference. Result has 314 places, 312 transitions, 634 flow [2022-11-16 12:19:32,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=314, PETRI_TRANSITIONS=312} [2022-11-16 12:19:32,274 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -14 predicate places. [2022-11-16 12:19:32,274 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 312 transitions, 634 flow [2022-11-16 12:19:32,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:32,275 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:32,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:19:32,276 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:32,277 INFO L85 PathProgramCache]: Analyzing trace with hash 157086038, now seen corresponding path program 1 times [2022-11-16 12:19:32,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:32,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409131685] [2022-11-16 12:19:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:32,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:32,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:32,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409131685] [2022-11-16 12:19:32,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409131685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:32,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:32,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:32,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522609443] [2022-11-16 12:19:32,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:32,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:32,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:32,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:32,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:32,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 355 [2022-11-16 12:19:32,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 312 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:32,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 355 [2022-11-16 12:19:32,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:32,530 INFO L130 PetriNetUnfolder]: 14/409 cut-off events. [2022-11-16 12:19:32,530 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-16 12:19:32,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 409 events. 14/409 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1245 event pairs, 6 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 331. Up to 26 conditions per place. [2022-11-16 12:19:32,536 INFO L137 encePairwiseOnDemand]: 348/355 looper letters, 15 selfloop transitions, 3 changer transitions 0/309 dead transitions. [2022-11-16 12:19:32,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 309 transitions, 665 flow [2022-11-16 12:19:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:32,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-16 12:19:32,540 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9220657276995305 [2022-11-16 12:19:32,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-16 12:19:32,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-16 12:19:32,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:32,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-16 12:19:32,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,552 INFO L175 Difference]: Start difference. First operand has 314 places, 312 transitions, 634 flow. Second operand 3 states and 982 transitions. [2022-11-16 12:19:32,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 309 transitions, 665 flow [2022-11-16 12:19:32,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 309 transitions, 659 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:32,562 INFO L231 Difference]: Finished difference. Result has 310 places, 308 transitions, 626 flow [2022-11-16 12:19:32,562 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=310, PETRI_TRANSITIONS=308} [2022-11-16 12:19:32,564 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -18 predicate places. [2022-11-16 12:19:32,564 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 308 transitions, 626 flow [2022-11-16 12:19:32,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,565 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:32,565 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:32,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:19:32,566 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:32,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1166854357, now seen corresponding path program 1 times [2022-11-16 12:19:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:32,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060863928] [2022-11-16 12:19:32,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:32,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:32,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:32,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060863928] [2022-11-16 12:19:32,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060863928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:32,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:32,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:32,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650930293] [2022-11-16 12:19:32,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:32,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:32,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:32,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:32,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 355 [2022-11-16 12:19:32,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 308 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:32,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 355 [2022-11-16 12:19:32,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:32,855 INFO L130 PetriNetUnfolder]: 15/655 cut-off events. [2022-11-16 12:19:32,855 INFO L131 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2022-11-16 12:19:32,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 655 events. 15/655 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2242 event pairs, 3 based on Foata normal form. 1/591 useless extension candidates. Maximal degree in co-relation 496. Up to 21 conditions per place. [2022-11-16 12:19:32,864 INFO L137 encePairwiseOnDemand]: 349/355 looper letters, 17 selfloop transitions, 3 changer transitions 0/310 dead transitions. [2022-11-16 12:19:32,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 310 transitions, 674 flow [2022-11-16 12:19:32,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:32,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:32,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 992 transitions. [2022-11-16 12:19:32,867 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9314553990610329 [2022-11-16 12:19:32,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 992 transitions. [2022-11-16 12:19:32,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 992 transitions. [2022-11-16 12:19:32,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:32,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 992 transitions. [2022-11-16 12:19:32,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,875 INFO L175 Difference]: Start difference. First operand has 310 places, 308 transitions, 626 flow. Second operand 3 states and 992 transitions. [2022-11-16 12:19:32,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 310 transitions, 674 flow [2022-11-16 12:19:32,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 310 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:32,883 INFO L231 Difference]: Finished difference. Result has 308 places, 306 transitions, 627 flow [2022-11-16 12:19:32,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=627, PETRI_PLACES=308, PETRI_TRANSITIONS=306} [2022-11-16 12:19:32,886 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -20 predicate places. [2022-11-16 12:19:32,886 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 306 transitions, 627 flow [2022-11-16 12:19:32,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,887 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:32,888 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:32,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:19:32,888 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:32,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:32,890 INFO L85 PathProgramCache]: Analyzing trace with hash 360590155, now seen corresponding path program 1 times [2022-11-16 12:19:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:32,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877347935] [2022-11-16 12:19:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:32,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:32,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:32,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:32,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877347935] [2022-11-16 12:19:32,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877347935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:32,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:32,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:32,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489036017] [2022-11-16 12:19:32,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:32,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:32,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:32,959 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 355 [2022-11-16 12:19:32,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 306 transitions, 627 flow. Second operand has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:32,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:32,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 355 [2022-11-16 12:19:32,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:33,185 INFO L130 PetriNetUnfolder]: 29/790 cut-off events. [2022-11-16 12:19:33,185 INFO L131 PetriNetUnfolder]: For 31/34 co-relation queries the response was YES. [2022-11-16 12:19:33,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 790 events. 29/790 cut-off events. For 31/34 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3616 event pairs, 9 based on Foata normal form. 1/713 useless extension candidates. Maximal degree in co-relation 378. Up to 40 conditions per place. [2022-11-16 12:19:33,197 INFO L137 encePairwiseOnDemand]: 349/355 looper letters, 17 selfloop transitions, 3 changer transitions 0/308 dead transitions. [2022-11-16 12:19:33,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 308 transitions, 675 flow [2022-11-16 12:19:33,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:33,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 992 transitions. [2022-11-16 12:19:33,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9314553990610329 [2022-11-16 12:19:33,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 992 transitions. [2022-11-16 12:19:33,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 992 transitions. [2022-11-16 12:19:33,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:33,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 992 transitions. [2022-11-16 12:19:33,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,221 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,231 INFO L175 Difference]: Start difference. First operand has 308 places, 306 transitions, 627 flow. Second operand 3 states and 992 transitions. [2022-11-16 12:19:33,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 308 transitions, 675 flow [2022-11-16 12:19:33,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 308 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:19:33,239 INFO L231 Difference]: Finished difference. Result has 307 places, 304 transitions, 631 flow [2022-11-16 12:19:33,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=631, PETRI_PLACES=307, PETRI_TRANSITIONS=304} [2022-11-16 12:19:33,241 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -21 predicate places. [2022-11-16 12:19:33,242 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 304 transitions, 631 flow [2022-11-16 12:19:33,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:33,244 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:33,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:19:33,244 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:33,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:33,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1835974954, now seen corresponding path program 1 times [2022-11-16 12:19:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:33,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922377977] [2022-11-16 12:19:33,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:33,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:33,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:33,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922377977] [2022-11-16 12:19:33,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922377977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:33,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:33,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:33,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129744679] [2022-11-16 12:19:33,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:33,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:33,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:33,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:33,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:33,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 355 [2022-11-16 12:19:33,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 304 transitions, 631 flow. Second operand has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:33,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 355 [2022-11-16 12:19:33,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:33,655 INFO L130 PetriNetUnfolder]: 49/1430 cut-off events. [2022-11-16 12:19:33,655 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-11-16 12:19:33,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1430 events. 49/1430 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8610 event pairs, 18 based on Foata normal form. 0/1294 useless extension candidates. Maximal degree in co-relation 716. Up to 89 conditions per place. [2022-11-16 12:19:33,670 INFO L137 encePairwiseOnDemand]: 351/355 looper letters, 11 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2022-11-16 12:19:33,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 305 transitions, 660 flow [2022-11-16 12:19:33,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:33,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1002 transitions. [2022-11-16 12:19:33,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408450704225352 [2022-11-16 12:19:33,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1002 transitions. [2022-11-16 12:19:33,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1002 transitions. [2022-11-16 12:19:33,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:33,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1002 transitions. [2022-11-16 12:19:33,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.0) internal successors, (1002), 3 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,684 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,684 INFO L175 Difference]: Start difference. First operand has 307 places, 304 transitions, 631 flow. Second operand 3 states and 1002 transitions. [2022-11-16 12:19:33,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 305 transitions, 660 flow [2022-11-16 12:19:33,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 305 transitions, 657 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:19:33,693 INFO L231 Difference]: Finished difference. Result has 307 places, 304 transitions, 638 flow [2022-11-16 12:19:33,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=307, PETRI_TRANSITIONS=304} [2022-11-16 12:19:33,696 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -21 predicate places. [2022-11-16 12:19:33,696 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 304 transitions, 638 flow [2022-11-16 12:19:33,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:33,697 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:33,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:19:33,697 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:33,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:33,698 INFO L85 PathProgramCache]: Analyzing trace with hash -358608161, now seen corresponding path program 1 times [2022-11-16 12:19:33,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:33,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492973361] [2022-11-16 12:19:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:33,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:33,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:33,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492973361] [2022-11-16 12:19:33,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492973361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:33,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:33,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:33,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679410243] [2022-11-16 12:19:33,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:33,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:33,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:33,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:33,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:33,767 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 355 [2022-11-16 12:19:33,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 304 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:33,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 355 [2022-11-16 12:19:33,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:34,060 INFO L130 PetriNetUnfolder]: 28/1057 cut-off events. [2022-11-16 12:19:34,060 INFO L131 PetriNetUnfolder]: For 7/20 co-relation queries the response was YES. [2022-11-16 12:19:34,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 1057 events. 28/1057 cut-off events. For 7/20 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5470 event pairs, 7 based on Foata normal form. 4/970 useless extension candidates. Maximal degree in co-relation 508. Up to 44 conditions per place. [2022-11-16 12:19:34,073 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 12 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-11-16 12:19:34,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 304 transitions, 667 flow [2022-11-16 12:19:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:34,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 996 transitions. [2022-11-16 12:19:34,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9352112676056338 [2022-11-16 12:19:34,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 996 transitions. [2022-11-16 12:19:34,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 996 transitions. [2022-11-16 12:19:34,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:34,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 996 transitions. [2022-11-16 12:19:34,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,093 INFO L175 Difference]: Start difference. First operand has 307 places, 304 transitions, 638 flow. Second operand 3 states and 996 transitions. [2022-11-16 12:19:34,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 304 transitions, 667 flow [2022-11-16 12:19:34,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 304 transitions, 667 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:19:34,102 INFO L231 Difference]: Finished difference. Result has 308 places, 303 transitions, 640 flow [2022-11-16 12:19:34,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=308, PETRI_TRANSITIONS=303} [2022-11-16 12:19:34,104 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -20 predicate places. [2022-11-16 12:19:34,105 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 303 transitions, 640 flow [2022-11-16 12:19:34,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:34,108 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:34,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:19:34,108 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:34,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:34,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1965945648, now seen corresponding path program 1 times [2022-11-16 12:19:34,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:34,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107890561] [2022-11-16 12:19:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:34,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:34,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:34,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107890561] [2022-11-16 12:19:34,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107890561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:34,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:34,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:19:34,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33326211] [2022-11-16 12:19:34,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:34,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:19:34,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:34,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:19:34,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:34,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 355 [2022-11-16 12:19:34,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 303 transitions, 640 flow. Second operand has 6 states, 6 states have (on average 321.8333333333333) internal successors, (1931), 6 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:34,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 355 [2022-11-16 12:19:34,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:34,954 INFO L130 PetriNetUnfolder]: 13/787 cut-off events. [2022-11-16 12:19:34,955 INFO L131 PetriNetUnfolder]: For 2/22 co-relation queries the response was YES. [2022-11-16 12:19:34,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 787 events. 13/787 cut-off events. For 2/22 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3397 event pairs, 1 based on Foata normal form. 8/732 useless extension candidates. Maximal degree in co-relation 782. Up to 29 conditions per place. [2022-11-16 12:19:34,967 INFO L137 encePairwiseOnDemand]: 350/355 looper letters, 15 selfloop transitions, 4 changer transitions 0/302 dead transitions. [2022-11-16 12:19:34,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 302 transitions, 676 flow [2022-11-16 12:19:34,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:19:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:19:34,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1940 transitions. [2022-11-16 12:19:34,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9107981220657277 [2022-11-16 12:19:34,974 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1940 transitions. [2022-11-16 12:19:34,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1940 transitions. [2022-11-16 12:19:34,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:34,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1940 transitions. [2022-11-16 12:19:34,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,987 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,987 INFO L175 Difference]: Start difference. First operand has 308 places, 303 transitions, 640 flow. Second operand 6 states and 1940 transitions. [2022-11-16 12:19:34,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 302 transitions, 676 flow [2022-11-16 12:19:34,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 302 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:34,995 INFO L231 Difference]: Finished difference. Result has 310 places, 302 transitions, 642 flow [2022-11-16 12:19:34,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=642, PETRI_PLACES=310, PETRI_TRANSITIONS=302} [2022-11-16 12:19:34,997 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -18 predicate places. [2022-11-16 12:19:34,997 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 302 transitions, 642 flow [2022-11-16 12:19:34,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.8333333333333) internal successors, (1931), 6 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:34,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:34,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:34,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:19:34,999 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:34,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:34,999 INFO L85 PathProgramCache]: Analyzing trace with hash -623713215, now seen corresponding path program 1 times [2022-11-16 12:19:34,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:35,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583339831] [2022-11-16 12:19:35,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:35,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:35,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:35,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583339831] [2022-11-16 12:19:35,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583339831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:35,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:35,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:35,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144531664] [2022-11-16 12:19:35,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:35,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:35,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:35,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:35,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:35,054 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 355 [2022-11-16 12:19:35,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 302 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:35,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 355 [2022-11-16 12:19:35,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:35,256 INFO L130 PetriNetUnfolder]: 29/828 cut-off events. [2022-11-16 12:19:35,256 INFO L131 PetriNetUnfolder]: For 23/27 co-relation queries the response was YES. [2022-11-16 12:19:35,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 968 conditions, 828 events. 29/828 cut-off events. For 23/27 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3907 event pairs, 9 based on Foata normal form. 1/771 useless extension candidates. Maximal degree in co-relation 794. Up to 52 conditions per place. [2022-11-16 12:19:35,268 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 11 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2022-11-16 12:19:35,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 302 transitions, 669 flow [2022-11-16 12:19:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 995 transitions. [2022-11-16 12:19:35,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9342723004694836 [2022-11-16 12:19:35,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 995 transitions. [2022-11-16 12:19:35,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 995 transitions. [2022-11-16 12:19:35,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:35,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 995 transitions. [2022-11-16 12:19:35,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,280 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,280 INFO L175 Difference]: Start difference. First operand has 310 places, 302 transitions, 642 flow. Second operand 3 states and 995 transitions. [2022-11-16 12:19:35,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 302 transitions, 669 flow [2022-11-16 12:19:35,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 302 transitions, 662 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:19:35,290 INFO L231 Difference]: Finished difference. Result has 307 places, 301 transitions, 637 flow [2022-11-16 12:19:35,291 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=637, PETRI_PLACES=307, PETRI_TRANSITIONS=301} [2022-11-16 12:19:35,292 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -21 predicate places. [2022-11-16 12:19:35,292 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 301 transitions, 637 flow [2022-11-16 12:19:35,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,293 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:35,293 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:35,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:19:35,294 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:35,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:35,294 INFO L85 PathProgramCache]: Analyzing trace with hash -237794355, now seen corresponding path program 1 times [2022-11-16 12:19:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:35,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755756682] [2022-11-16 12:19:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:35,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:35,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:35,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755756682] [2022-11-16 12:19:35,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755756682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:35,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:35,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:35,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031919881] [2022-11-16 12:19:35,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:35,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:35,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:35,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:35,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:35,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 355 [2022-11-16 12:19:35,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 301 transitions, 637 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:35,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 355 [2022-11-16 12:19:35,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:35,613 INFO L130 PetriNetUnfolder]: 41/987 cut-off events. [2022-11-16 12:19:35,613 INFO L131 PetriNetUnfolder]: For 7/18 co-relation queries the response was YES. [2022-11-16 12:19:35,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 987 events. 41/987 cut-off events. For 7/18 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5025 event pairs, 21 based on Foata normal form. 1/922 useless extension candidates. Maximal degree in co-relation 1088. Up to 78 conditions per place. [2022-11-16 12:19:35,635 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 17 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-11-16 12:19:35,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 301 transitions, 676 flow [2022-11-16 12:19:35,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 974 transitions. [2022-11-16 12:19:35,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9145539906103286 [2022-11-16 12:19:35,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 974 transitions. [2022-11-16 12:19:35,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 974 transitions. [2022-11-16 12:19:35,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:35,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 974 transitions. [2022-11-16 12:19:35,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,648 INFO L175 Difference]: Start difference. First operand has 307 places, 301 transitions, 637 flow. Second operand 3 states and 974 transitions. [2022-11-16 12:19:35,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 301 transitions, 676 flow [2022-11-16 12:19:35,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 301 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:35,657 INFO L231 Difference]: Finished difference. Result has 306 places, 300 transitions, 635 flow [2022-11-16 12:19:35,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=635, PETRI_PLACES=306, PETRI_TRANSITIONS=300} [2022-11-16 12:19:35,658 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -22 predicate places. [2022-11-16 12:19:35,659 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 300 transitions, 635 flow [2022-11-16 12:19:35,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:35,660 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:35,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:19:35,661 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:35,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:35,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1853812596, now seen corresponding path program 1 times [2022-11-16 12:19:35,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:35,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478410454] [2022-11-16 12:19:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:35,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:36,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:36,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:36,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478410454] [2022-11-16 12:19:36,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478410454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:36,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:36,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:19:36,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763759277] [2022-11-16 12:19:36,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:36,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:19:36,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:36,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:19:36,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:36,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 355 [2022-11-16 12:19:36,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 300 transitions, 635 flow. Second operand has 6 states, 6 states have (on average 322.8333333333333) internal successors, (1937), 6 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:36,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:36,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 355 [2022-11-16 12:19:36,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:36,651 INFO L130 PetriNetUnfolder]: 13/775 cut-off events. [2022-11-16 12:19:36,652 INFO L131 PetriNetUnfolder]: For 2/21 co-relation queries the response was YES. [2022-11-16 12:19:36,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 775 events. 13/775 cut-off events. For 2/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3274 event pairs, 1 based on Foata normal form. 4/728 useless extension candidates. Maximal degree in co-relation 712. Up to 25 conditions per place. [2022-11-16 12:19:36,663 INFO L137 encePairwiseOnDemand]: 350/355 looper letters, 14 selfloop transitions, 4 changer transitions 0/299 dead transitions. [2022-11-16 12:19:36,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 299 transitions, 669 flow [2022-11-16 12:19:36,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:19:36,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:19:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1939 transitions. [2022-11-16 12:19:36,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9103286384976526 [2022-11-16 12:19:36,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1939 transitions. [2022-11-16 12:19:36,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1939 transitions. [2022-11-16 12:19:36,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:36,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1939 transitions. [2022-11-16 12:19:36,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.1666666666667) internal successors, (1939), 6 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:36,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:36,683 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:36,683 INFO L175 Difference]: Start difference. First operand has 306 places, 300 transitions, 635 flow. Second operand 6 states and 1939 transitions. [2022-11-16 12:19:36,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 299 transitions, 669 flow [2022-11-16 12:19:36,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 299 transitions, 665 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:36,691 INFO L231 Difference]: Finished difference. Result has 308 places, 299 transitions, 637 flow [2022-11-16 12:19:36,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=637, PETRI_PLACES=308, PETRI_TRANSITIONS=299} [2022-11-16 12:19:36,692 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -20 predicate places. [2022-11-16 12:19:36,692 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 299 transitions, 637 flow [2022-11-16 12:19:36,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.8333333333333) internal successors, (1937), 6 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:36,694 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:36,694 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:36,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:19:36,694 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:36,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:36,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1879032913, now seen corresponding path program 1 times [2022-11-16 12:19:36,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:36,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346730864] [2022-11-16 12:19:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:36,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:36,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:36,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:36,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346730864] [2022-11-16 12:19:36,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346730864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:36,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:36,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:36,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572742979] [2022-11-16 12:19:36,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:36,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:36,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:36,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:36,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:36,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 355 [2022-11-16 12:19:36,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 299 transitions, 637 flow. Second operand has 3 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:36,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:36,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 355 [2022-11-16 12:19:36,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:37,028 INFO L130 PetriNetUnfolder]: 45/995 cut-off events. [2022-11-16 12:19:37,028 INFO L131 PetriNetUnfolder]: For 35/44 co-relation queries the response was YES. [2022-11-16 12:19:37,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1193 conditions, 995 events. 45/995 cut-off events. For 35/44 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5558 event pairs, 25 based on Foata normal form. 0/926 useless extension candidates. Maximal degree in co-relation 1128. Up to 110 conditions per place. [2022-11-16 12:19:37,038 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 17 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-11-16 12:19:37,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 299 transitions, 676 flow [2022-11-16 12:19:37,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 974 transitions. [2022-11-16 12:19:37,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9145539906103286 [2022-11-16 12:19:37,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 974 transitions. [2022-11-16 12:19:37,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 974 transitions. [2022-11-16 12:19:37,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:37,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 974 transitions. [2022-11-16 12:19:37,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,050 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,050 INFO L175 Difference]: Start difference. First operand has 308 places, 299 transitions, 637 flow. Second operand 3 states and 974 transitions. [2022-11-16 12:19:37,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 299 transitions, 676 flow [2022-11-16 12:19:37,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 299 transitions, 669 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:19:37,058 INFO L231 Difference]: Finished difference. Result has 305 places, 298 transitions, 632 flow [2022-11-16 12:19:37,059 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=305, PETRI_TRANSITIONS=298} [2022-11-16 12:19:37,059 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -23 predicate places. [2022-11-16 12:19:37,059 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 298 transitions, 632 flow [2022-11-16 12:19:37,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:37,060 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:37,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:19:37,061 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:37,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:37,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1064667767, now seen corresponding path program 1 times [2022-11-16 12:19:37,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:37,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881934659] [2022-11-16 12:19:37,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:37,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:37,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:37,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:37,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881934659] [2022-11-16 12:19:37,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881934659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:37,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:37,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:37,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895144499] [2022-11-16 12:19:37,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:37,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:37,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:37,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:37,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:37,154 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 355 [2022-11-16 12:19:37,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 298 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:37,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 355 [2022-11-16 12:19:37,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:37,383 INFO L130 PetriNetUnfolder]: 22/1017 cut-off events. [2022-11-16 12:19:37,383 INFO L131 PetriNetUnfolder]: For 7/12 co-relation queries the response was YES. [2022-11-16 12:19:37,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 1017 events. 22/1017 cut-off events. For 7/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5088 event pairs, 7 based on Foata normal form. 0/957 useless extension candidates. Maximal degree in co-relation 796. Up to 32 conditions per place. [2022-11-16 12:19:37,396 INFO L137 encePairwiseOnDemand]: 353/355 looper letters, 9 selfloop transitions, 1 changer transitions 0/297 dead transitions. [2022-11-16 12:19:37,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 297 transitions, 650 flow [2022-11-16 12:19:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:37,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 998 transitions. [2022-11-16 12:19:37,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9370892018779343 [2022-11-16 12:19:37,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 998 transitions. [2022-11-16 12:19:37,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 998 transitions. [2022-11-16 12:19:37,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:37,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 998 transitions. [2022-11-16 12:19:37,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,407 INFO L175 Difference]: Start difference. First operand has 305 places, 298 transitions, 632 flow. Second operand 3 states and 998 transitions. [2022-11-16 12:19:37,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 297 transitions, 650 flow [2022-11-16 12:19:37,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 297 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:37,414 INFO L231 Difference]: Finished difference. Result has 304 places, 297 transitions, 628 flow [2022-11-16 12:19:37,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=304, PETRI_TRANSITIONS=297} [2022-11-16 12:19:37,415 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -24 predicate places. [2022-11-16 12:19:37,415 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 297 transitions, 628 flow [2022-11-16 12:19:37,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,416 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:37,416 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:37,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:19:37,416 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:37,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash -815430783, now seen corresponding path program 1 times [2022-11-16 12:19:37,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:37,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983107346] [2022-11-16 12:19:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:37,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:37,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:37,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983107346] [2022-11-16 12:19:37,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983107346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:37,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:37,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:37,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845297906] [2022-11-16 12:19:37,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:37,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:37,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:37,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:37,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:37,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 355 [2022-11-16 12:19:37,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 297 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:37,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 355 [2022-11-16 12:19:37,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:37,692 INFO L130 PetriNetUnfolder]: 21/798 cut-off events. [2022-11-16 12:19:37,692 INFO L131 PetriNetUnfolder]: For 15/17 co-relation queries the response was YES. [2022-11-16 12:19:37,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 798 events. 21/798 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3526 event pairs, 9 based on Foata normal form. 4/758 useless extension candidates. Maximal degree in co-relation 880. Up to 44 conditions per place. [2022-11-16 12:19:37,700 INFO L137 encePairwiseOnDemand]: 353/355 looper letters, 7 selfloop transitions, 0 changer transitions 5/296 dead transitions. [2022-11-16 12:19:37,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 296 transitions, 644 flow [2022-11-16 12:19:37,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:37,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:37,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 997 transitions. [2022-11-16 12:19:37,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.936150234741784 [2022-11-16 12:19:37,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 997 transitions. [2022-11-16 12:19:37,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 997 transitions. [2022-11-16 12:19:37,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:37,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 997 transitions. [2022-11-16 12:19:37,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,711 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,711 INFO L175 Difference]: Start difference. First operand has 304 places, 297 transitions, 628 flow. Second operand 3 states and 997 transitions. [2022-11-16 12:19:37,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 296 transitions, 644 flow [2022-11-16 12:19:37,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 296 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:19:37,718 INFO L231 Difference]: Finished difference. Result has 304 places, 291 transitions, 613 flow [2022-11-16 12:19:37,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=613, PETRI_PLACES=304, PETRI_TRANSITIONS=291} [2022-11-16 12:19:37,719 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -24 predicate places. [2022-11-16 12:19:37,719 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 291 transitions, 613 flow [2022-11-16 12:19:37,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:37,720 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:37,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:19:37,721 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:37,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:37,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1707806014, now seen corresponding path program 1 times [2022-11-16 12:19:37,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:37,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269784571] [2022-11-16 12:19:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:37,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:37,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:37,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269784571] [2022-11-16 12:19:37,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269784571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:37,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:37,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:37,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505927854] [2022-11-16 12:19:37,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:37,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:37,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:37,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:37,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:37,795 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 355 [2022-11-16 12:19:37,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 291 transitions, 613 flow. Second operand has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:37,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 355 [2022-11-16 12:19:37,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:37,995 INFO L130 PetriNetUnfolder]: 34/1047 cut-off events. [2022-11-16 12:19:37,995 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-16 12:19:38,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 1047 events. 34/1047 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5638 event pairs, 13 based on Foata normal form. 0/987 useless extension candidates. Maximal degree in co-relation 1191. Up to 52 conditions per place. [2022-11-16 12:19:38,004 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 15 selfloop transitions, 2 changer transitions 0/291 dead transitions. [2022-11-16 12:19:38,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 291 transitions, 648 flow [2022-11-16 12:19:38,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:38,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 980 transitions. [2022-11-16 12:19:38,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.92018779342723 [2022-11-16 12:19:38,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 980 transitions. [2022-11-16 12:19:38,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 980 transitions. [2022-11-16 12:19:38,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:38,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 980 transitions. [2022-11-16 12:19:38,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,013 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,013 INFO L175 Difference]: Start difference. First operand has 304 places, 291 transitions, 613 flow. Second operand 3 states and 980 transitions. [2022-11-16 12:19:38,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 291 transitions, 648 flow [2022-11-16 12:19:38,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 291 transitions, 648 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:19:38,019 INFO L231 Difference]: Finished difference. Result has 298 places, 290 transitions, 615 flow [2022-11-16 12:19:38,020 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=615, PETRI_PLACES=298, PETRI_TRANSITIONS=290} [2022-11-16 12:19:38,020 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -30 predicate places. [2022-11-16 12:19:38,020 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 290 transitions, 615 flow [2022-11-16 12:19:38,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:38,021 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:38,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:19:38,022 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-16 12:19:38,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:38,022 INFO L85 PathProgramCache]: Analyzing trace with hash -751099740, now seen corresponding path program 1 times [2022-11-16 12:19:38,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:38,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666430211] [2022-11-16 12:19:38,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:38,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:38,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:38,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666430211] [2022-11-16 12:19:38,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666430211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:38,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:38,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:38,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744260908] [2022-11-16 12:19:38,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:38,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:38,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:38,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 355 [2022-11-16 12:19:38,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 290 transitions, 615 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:38,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 355 [2022-11-16 12:19:38,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:38,283 INFO L130 PetriNetUnfolder]: 32/924 cut-off events. [2022-11-16 12:19:38,283 INFO L131 PetriNetUnfolder]: For 34/37 co-relation queries the response was YES. [2022-11-16 12:19:38,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1075 conditions, 924 events. 32/924 cut-off events. For 34/37 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4632 event pairs, 13 based on Foata normal form. 0/877 useless extension candidates. Maximal degree in co-relation 1068. Up to 66 conditions per place. [2022-11-16 12:19:38,290 INFO L137 encePairwiseOnDemand]: 352/355 looper letters, 0 selfloop transitions, 0 changer transitions 290/290 dead transitions. [2022-11-16 12:19:38,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 290 transitions, 650 flow [2022-11-16 12:19:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:38,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 980 transitions. [2022-11-16 12:19:38,294 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.92018779342723 [2022-11-16 12:19:38,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 980 transitions. [2022-11-16 12:19:38,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 980 transitions. [2022-11-16 12:19:38,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:38,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 980 transitions. [2022-11-16 12:19:38,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,301 INFO L175 Difference]: Start difference. First operand has 298 places, 290 transitions, 615 flow. Second operand 3 states and 980 transitions. [2022-11-16 12:19:38,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 290 transitions, 650 flow [2022-11-16 12:19:38,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 290 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:38,305 INFO L231 Difference]: Finished difference. Result has 297 places, 0 transitions, 0 flow [2022-11-16 12:19:38,306 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=297, PETRI_TRANSITIONS=0} [2022-11-16 12:19:38,306 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -31 predicate places. [2022-11-16 12:19:38,306 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 0 transitions, 0 flow [2022-11-16 12:19:38,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:38,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2022-11-16 12:19:38,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-16 12:19:38,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-16 12:19:38,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-16 12:19:38,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-16 12:19:38,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-16 12:19:38,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-16 12:19:38,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-16 12:19:38,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-16 12:19:38,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-16 12:19:38,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-16 12:19:38,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-16 12:19:38,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-16 12:19:38,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-16 12:19:38,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-16 12:19:38,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-16 12:19:38,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-16 12:19:38,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-16 12:19:38,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-11-16 12:19:38,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-16 12:19:38,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-16 12:19:38,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-16 12:19:38,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-16 12:19:38,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-16 12:19:38,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-16 12:19:38,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-16 12:19:38,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-16 12:19:38,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-16 12:19:38,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-16 12:19:38,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-16 12:19:38,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-16 12:19:38,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-16 12:19:38,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-11-16 12:19:38,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2022-11-16 12:19:38,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2022-11-16 12:19:38,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-16 12:19:38,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-16 12:19:38,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-16 12:19:38,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-16 12:19:38,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-16 12:19:38,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-16 12:19:38,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-16 12:19:38,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-16 12:19:38,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-16 12:19:38,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-16 12:19:38,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-16 12:19:38,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-16 12:19:38,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-16 12:19:38,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-16 12:19:38,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-16 12:19:38,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-16 12:19:38,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-16 12:19:38,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-16 12:19:38,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:19:38,323 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:38,332 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:19:38,332 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:19:38,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:19:38 BasicIcfg [2022-11-16 12:19:38,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:19:38,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:19:38,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:19:38,339 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:19:38,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:28" (3/4) ... [2022-11-16 12:19:38,342 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:19:38,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 12:19:38,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 12:19:38,358 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-16 12:19:38,358 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:19:38,358 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:19:38,359 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:19:38,407 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:19:38,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:19:38,408 INFO L158 Benchmark]: Toolchain (without parser) took 10955.39ms. Allocated memory was 109.1MB in the beginning and 249.6MB in the end (delta: 140.5MB). Free memory was 71.8MB in the beginning and 169.3MB in the end (delta: -97.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-11-16 12:19:38,408 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:19:38,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.66ms. Allocated memory is still 109.1MB. Free memory was 71.6MB in the beginning and 83.2MB in the end (delta: -11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:19:38,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.35ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 80.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:38,409 INFO L158 Benchmark]: Boogie Preprocessor took 67.44ms. Allocated memory is still 109.1MB. Free memory was 80.5MB in the beginning and 78.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:38,409 INFO L158 Benchmark]: RCFGBuilder took 834.81ms. Allocated memory is still 109.1MB. Free memory was 78.7MB in the beginning and 54.8MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 12:19:38,410 INFO L158 Benchmark]: TraceAbstraction took 9540.79ms. Allocated memory was 109.1MB in the beginning and 249.6MB in the end (delta: 140.5MB). Free memory was 53.8MB in the beginning and 173.5MB in the end (delta: -119.6MB). Peak memory consumption was 126.3MB. Max. memory is 16.1GB. [2022-11-16 12:19:38,410 INFO L158 Benchmark]: Witness Printer took 68.75ms. Allocated memory is still 249.6MB. Free memory was 173.5MB in the beginning and 169.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:19:38,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.66ms. Allocated memory is still 109.1MB. Free memory was 71.6MB in the beginning and 83.2MB in the end (delta: -11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.35ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 80.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.44ms. Allocated memory is still 109.1MB. Free memory was 80.5MB in the beginning and 78.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 834.81ms. Allocated memory is still 109.1MB. Free memory was 78.7MB in the beginning and 54.8MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9540.79ms. Allocated memory was 109.1MB in the beginning and 249.6MB in the end (delta: 140.5MB). Free memory was 53.8MB in the beginning and 173.5MB in the end (delta: -119.6MB). Peak memory consumption was 126.3MB. Max. memory is 16.1GB. * Witness Printer took 68.75ms. Allocated memory is still 249.6MB. Free memory was 173.5MB in the beginning and 169.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 531 locations, 53 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.2s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 229 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 449 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 229 mSDtfsCounter, 449 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=682occurred in iteration=0, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1986 NumberOfCodeBlocks, 1986 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1964 ConstructedInterpolants, 0 QuantifiedInterpolants, 2166 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:19:38,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8fa0b7-84dc-40ed-ab20-e4f10b60b144/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE