./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ --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 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --- 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-dbf71c6-m [2022-10-17 10:20:34,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:20:34,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:20:34,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:20:34,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:20:34,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:20:34,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:20:34,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:20:34,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:20:34,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:20:34,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:20:35,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:20:35,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:20:35,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:20:35,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:20:35,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:20:35,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:20:35,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:20:35,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:20:35,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:20:35,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:20:35,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:20:35,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:20:35,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:20:35,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:20:35,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:20:35,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:20:35,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:20:35,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:20:35,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:20:35,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:20:35,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:20:35,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:20:35,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:20:35,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:20:35,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:20:35,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:20:35,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:20:35,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:20:35,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:20:35,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:20:35,077 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:20:35,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:20:35,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:20:35,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:20:35,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:20:35,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:20:35,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:20:35,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:20:35,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:20:35,147 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:20:35,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:20:35,148 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:20:35,148 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:20:35,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:20:35,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:20:35,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:20:35,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:20:35,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:20:35,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:20:35,150 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:20:35,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:20:35,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:20:35,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:20:35,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:20:35,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:20:35,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:20:35,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:20:35,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:20:35,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:20:35,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:20:35,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:20:35,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:20:35,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:20:35,154 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:20:35,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:20:35,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:20:35,154 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_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad [2022-10-17 10:20:35,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:20:35,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:20:35,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:20:35,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:20:35,475 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:20:35,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-10-17 10:20:35,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/data/03ac825d7/7433d222e37346728dacb557c492d9b8/FLAG477e9b439 [2022-10-17 10:20:36,309 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:20:36,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-10-17 10:20:36,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/data/03ac825d7/7433d222e37346728dacb557c492d9b8/FLAG477e9b439 [2022-10-17 10:20:36,481 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/data/03ac825d7/7433d222e37346728dacb557c492d9b8 [2022-10-17 10:20:36,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:20:36,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:20:36,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:20:36,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:20:36,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:20:36,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:20:36" (1/1) ... [2022-10-17 10:20:36,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73966a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:36, skipping insertion in model container [2022-10-17 10:20:36,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:20:36" (1/1) ... [2022-10-17 10:20:36,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:20:36,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:20:37,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:20:37,452 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:20:37,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:20:37,626 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:20:37,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37 WrapperNode [2022-10-17 10:20:37,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:20:37,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:20:37,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:20:37,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:20:37,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,718 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2022-10-17 10:20:37,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:20:37,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:20:37,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:20:37,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:20:37,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,775 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:20:37,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:20:37,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:20:37,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:20:37,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (1/1) ... [2022-10-17 10:20:37,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:20:37,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:20:37,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:20:37,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:20:37,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:20:37,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:20:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:20:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:20:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:20:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:20:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:20:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:20:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-17 10:20:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-17 10:20:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:20:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:20:37,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:20:37,882 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:20:38,053 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:20:38,056 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:20:38,725 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:20:38,738 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:20:38,738 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:20:38,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:38 BoogieIcfgContainer [2022-10-17 10:20:38,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:20:38,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:20:38,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:20:38,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:20:38,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:20:36" (1/3) ... [2022-10-17 10:20:38,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0272cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:20:38, skipping insertion in model container [2022-10-17 10:20:38,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:37" (2/3) ... [2022-10-17 10:20:38,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0272cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:20:38, skipping insertion in model container [2022-10-17 10:20:38,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:38" (3/3) ... [2022-10-17 10:20:38,757 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2022-10-17 10:20:38,767 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:20:38,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:20:38,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-17 10:20:38,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:20:38,935 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:20:38,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 180 transitions, 365 flow [2022-10-17 10:20:39,111 INFO L130 PetriNetUnfolder]: 0/179 cut-off events. [2022-10-17 10:20:39,111 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:39,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-10-17 10:20:39,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 180 transitions, 365 flow [2022-10-17 10:20:39,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 179 transitions, 361 flow [2022-10-17 10:20:39,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:20:39,146 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;@7faa23e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:20:39,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-10-17 10:20:39,160 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-10-17 10:20:39,160 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:39,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:39,162 INFO L208 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] [2022-10-17 10:20:39,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:39,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2052627791, now seen corresponding path program 1 times [2022-10-17 10:20:39,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:39,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571294625] [2022-10-17 10:20:39,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:39,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:40,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:40,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571294625] [2022-10-17 10:20:40,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571294625] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:40,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:40,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:20:40,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885870244] [2022-10-17 10:20:40,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:40,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:20:40,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:40,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:20:40,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:20:40,377 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 180 [2022-10-17 10:20:40,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 179 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:40,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:40,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 180 [2022-10-17 10:20:40,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:40,775 INFO L130 PetriNetUnfolder]: 144/631 cut-off events. [2022-10-17 10:20:40,775 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:20:40,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 631 events. 144/631 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2675 event pairs, 144 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 850. Up to 346 conditions per place. [2022-10-17 10:20:40,786 INFO L137 encePairwiseOnDemand]: 168/180 looper letters, 57 selfloop transitions, 10 changer transitions 0/177 dead transitions. [2022-10-17 10:20:40,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 177 transitions, 491 flow [2022-10-17 10:20:40,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:20:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:20:40,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 735 transitions. [2022-10-17 10:20:40,810 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2022-10-17 10:20:40,811 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 735 transitions. [2022-10-17 10:20:40,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 735 transitions. [2022-10-17 10:20:40,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:40,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 735 transitions. [2022-10-17 10:20:40,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:40,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:40,839 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:40,841 INFO L175 Difference]: Start difference. First operand has 183 places, 179 transitions, 361 flow. Second operand 6 states and 735 transitions. [2022-10-17 10:20:40,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 177 transitions, 491 flow [2022-10-17 10:20:40,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 177 transitions, 490 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:20:40,855 INFO L231 Difference]: Finished difference. Result has 185 places, 177 transitions, 376 flow [2022-10-17 10:20:40,858 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=185, PETRI_TRANSITIONS=177} [2022-10-17 10:20:40,862 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 2 predicate places. [2022-10-17 10:20:40,862 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 177 transitions, 376 flow [2022-10-17 10:20:40,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:40,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:40,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:40,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:20:40,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:40,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:40,866 INFO L85 PathProgramCache]: Analyzing trace with hash 320042173, now seen corresponding path program 1 times [2022-10-17 10:20:40,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:40,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909863184] [2022-10-17 10:20:40,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:40,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:41,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:41,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909863184] [2022-10-17 10:20:41,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909863184] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:41,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:41,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:20:41,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788997660] [2022-10-17 10:20:41,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:41,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:20:41,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:41,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:20:41,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:20:41,401 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 180 [2022-10-17 10:20:41,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 177 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:41,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:41,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 180 [2022-10-17 10:20:41,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:41,816 INFO L130 PetriNetUnfolder]: 144/629 cut-off events. [2022-10-17 10:20:41,816 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-10-17 10:20:41,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 997 conditions, 629 events. 144/629 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2655 event pairs, 144 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 884. Up to 344 conditions per place. [2022-10-17 10:20:41,825 INFO L137 encePairwiseOnDemand]: 168/180 looper letters, 55 selfloop transitions, 10 changer transitions 0/175 dead transitions. [2022-10-17 10:20:41,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 175 transitions, 502 flow [2022-10-17 10:20:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:20:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:20:41,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 733 transitions. [2022-10-17 10:20:41,846 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6787037037037037 [2022-10-17 10:20:41,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 733 transitions. [2022-10-17 10:20:41,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 733 transitions. [2022-10-17 10:20:41,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:41,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 733 transitions. [2022-10-17 10:20:41,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:41,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:41,855 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:41,856 INFO L175 Difference]: Start difference. First operand has 185 places, 177 transitions, 376 flow. Second operand 6 states and 733 transitions. [2022-10-17 10:20:41,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 175 transitions, 502 flow [2022-10-17 10:20:41,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 175 transitions, 482 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:20:41,866 INFO L231 Difference]: Finished difference. Result has 183 places, 175 transitions, 372 flow [2022-10-17 10:20:41,866 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=183, PETRI_TRANSITIONS=175} [2022-10-17 10:20:41,868 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 0 predicate places. [2022-10-17 10:20:41,868 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 175 transitions, 372 flow [2022-10-17 10:20:41,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:41,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:41,869 INFO L208 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] [2022-10-17 10:20:41,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:20:41,870 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:41,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:41,873 INFO L85 PathProgramCache]: Analyzing trace with hash -170333930, now seen corresponding path program 1 times [2022-10-17 10:20:41,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:41,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118470222] [2022-10-17 10:20:41,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:41,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:41,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:41,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118470222] [2022-10-17 10:20:41,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118470222] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:41,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:41,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:41,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047731437] [2022-10-17 10:20:41,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:41,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:41,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:41,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:41,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:41,973 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 180 [2022-10-17 10:20:41,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 175 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:41,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:41,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 180 [2022-10-17 10:20:41,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:42,057 INFO L130 PetriNetUnfolder]: 9/290 cut-off events. [2022-10-17 10:20:42,057 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:42,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 290 events. 9/290 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 656 event pairs, 9 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 235. Up to 29 conditions per place. [2022-10-17 10:20:42,059 INFO L137 encePairwiseOnDemand]: 177/180 looper letters, 10 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2022-10-17 10:20:42,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 174 transitions, 394 flow [2022-10-17 10:20:42,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:42,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2022-10-17 10:20:42,063 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9518518518518518 [2022-10-17 10:20:42,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 514 transitions. [2022-10-17 10:20:42,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 514 transitions. [2022-10-17 10:20:42,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:42,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 514 transitions. [2022-10-17 10:20:42,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,072 INFO L175 Difference]: Start difference. First operand has 183 places, 175 transitions, 372 flow. Second operand 3 states and 514 transitions. [2022-10-17 10:20:42,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 174 transitions, 394 flow [2022-10-17 10:20:42,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 174 transitions, 374 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:20:42,083 INFO L231 Difference]: Finished difference. Result has 179 places, 174 transitions, 354 flow [2022-10-17 10:20:42,084 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=179, PETRI_TRANSITIONS=174} [2022-10-17 10:20:42,087 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, -4 predicate places. [2022-10-17 10:20:42,087 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 174 transitions, 354 flow [2022-10-17 10:20:42,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:42,088 INFO L208 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] [2022-10-17 10:20:42,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:20:42,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:42,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash -2000222690, now seen corresponding path program 1 times [2022-10-17 10:20:42,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:42,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111072182] [2022-10-17 10:20:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:42,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:42,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:42,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111072182] [2022-10-17 10:20:42,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111072182] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:42,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:42,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:42,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840333623] [2022-10-17 10:20:42,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:42,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:42,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:42,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:42,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:42,225 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 180 [2022-10-17 10:20:42,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 174 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:42,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 180 [2022-10-17 10:20:42,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:42,280 INFO L130 PetriNetUnfolder]: 0/173 cut-off events. [2022-10-17 10:20:42,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:42,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 173 events. 0/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-10-17 10:20:42,282 INFO L137 encePairwiseOnDemand]: 177/180 looper letters, 7 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-10-17 10:20:42,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 173 transitions, 370 flow [2022-10-17 10:20:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:42,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2022-10-17 10:20:42,285 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2022-10-17 10:20:42,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 520 transitions. [2022-10-17 10:20:42,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 520 transitions. [2022-10-17 10:20:42,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:42,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 520 transitions. [2022-10-17 10:20:42,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,296 INFO L175 Difference]: Start difference. First operand has 179 places, 174 transitions, 354 flow. Second operand 3 states and 520 transitions. [2022-10-17 10:20:42,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 173 transitions, 370 flow [2022-10-17 10:20:42,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 173 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:20:42,303 INFO L231 Difference]: Finished difference. Result has 178 places, 173 transitions, 352 flow [2022-10-17 10:20:42,303 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2022-10-17 10:20:42,306 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, -5 predicate places. [2022-10-17 10:20:42,306 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 352 flow [2022-10-17 10:20:42,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:42,323 INFO L208 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] [2022-10-17 10:20:42,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:20:42,323 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:42,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:42,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1678385605, now seen corresponding path program 1 times [2022-10-17 10:20:42,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:42,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613020527] [2022-10-17 10:20:42,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:42,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:42,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:42,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:42,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613020527] [2022-10-17 10:20:42,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613020527] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:42,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:42,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:42,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466860582] [2022-10-17 10:20:42,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:42,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:42,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:42,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:42,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:42,481 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 180 [2022-10-17 10:20:42,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:42,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 180 [2022-10-17 10:20:42,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:42,551 INFO L130 PetriNetUnfolder]: 4/260 cut-off events. [2022-10-17 10:20:42,551 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:42,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 260 events. 4/260 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 458 event pairs, 2 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2022-10-17 10:20:42,553 INFO L137 encePairwiseOnDemand]: 176/180 looper letters, 7 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-10-17 10:20:42,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 370 flow [2022-10-17 10:20:42,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:42,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2022-10-17 10:20:42,556 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9648148148148148 [2022-10-17 10:20:42,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2022-10-17 10:20:42,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2022-10-17 10:20:42,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:42,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2022-10-17 10:20:42,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,563 INFO L175 Difference]: Start difference. First operand has 178 places, 173 transitions, 352 flow. Second operand 3 states and 521 transitions. [2022-10-17 10:20:42,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 370 flow [2022-10-17 10:20:42,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 173 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:20:42,569 INFO L231 Difference]: Finished difference. Result has 177 places, 173 transitions, 358 flow [2022-10-17 10:20:42,570 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=177, PETRI_TRANSITIONS=173} [2022-10-17 10:20:42,573 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, -6 predicate places. [2022-10-17 10:20:42,573 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 173 transitions, 358 flow [2022-10-17 10:20:42,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:42,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:42,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:42,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:20:42,575 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:42,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:42,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1501407425, now seen corresponding path program 1 times [2022-10-17 10:20:42,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:42,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858103560] [2022-10-17 10:20:42,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:42,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:43,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:43,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:43,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858103560] [2022-10-17 10:20:43,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858103560] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:43,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:43,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:20:43,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022764066] [2022-10-17 10:20:43,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:43,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:20:43,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:43,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:20:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:20:43,283 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 180 [2022-10-17 10:20:43,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 173 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:43,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:43,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 180 [2022-10-17 10:20:43,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:43,719 INFO L130 PetriNetUnfolder]: 211/820 cut-off events. [2022-10-17 10:20:43,719 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:43,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 820 events. 211/820 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3876 event pairs, 135 based on Foata normal form. 0/746 useless extension candidates. Maximal degree in co-relation 1197. Up to 418 conditions per place. [2022-10-17 10:20:43,731 INFO L137 encePairwiseOnDemand]: 169/180 looper letters, 68 selfloop transitions, 22 changer transitions 0/207 dead transitions. [2022-10-17 10:20:43,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 207 transitions, 606 flow [2022-10-17 10:20:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:20:43,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:20:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 811 transitions. [2022-10-17 10:20:43,738 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7509259259259259 [2022-10-17 10:20:43,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 811 transitions. [2022-10-17 10:20:43,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 811 transitions. [2022-10-17 10:20:43,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:43,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 811 transitions. [2022-10-17 10:20:43,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 135.16666666666666) internal successors, (811), 6 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:43,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:43,748 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:43,749 INFO L175 Difference]: Start difference. First operand has 177 places, 173 transitions, 358 flow. Second operand 6 states and 811 transitions. [2022-10-17 10:20:43,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 207 transitions, 606 flow [2022-10-17 10:20:43,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 207 transitions, 606 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:20:43,758 INFO L231 Difference]: Finished difference. Result has 187 places, 194 transitions, 508 flow [2022-10-17 10:20:43,759 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2022-10-17 10:20:43,762 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 4 predicate places. [2022-10-17 10:20:43,763 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 508 flow [2022-10-17 10:20:43,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:43,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:43,764 INFO L208 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] [2022-10-17 10:20:43,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:20:43,765 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:43,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:43,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1742525625, now seen corresponding path program 1 times [2022-10-17 10:20:43,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:43,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001108046] [2022-10-17 10:20:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:43,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:44,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:44,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:44,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001108046] [2022-10-17 10:20:44,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001108046] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:44,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:44,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:20:44,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695428264] [2022-10-17 10:20:44,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:44,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:20:44,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:44,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:20:44,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:20:44,594 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 180 [2022-10-17 10:20:44,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:44,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:44,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 180 [2022-10-17 10:20:44,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:45,523 INFO L130 PetriNetUnfolder]: 409/1307 cut-off events. [2022-10-17 10:20:45,523 INFO L131 PetriNetUnfolder]: For 264/274 co-relation queries the response was YES. [2022-10-17 10:20:45,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2657 conditions, 1307 events. 409/1307 cut-off events. For 264/274 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6829 event pairs, 122 based on Foata normal form. 3/1210 useless extension candidates. Maximal degree in co-relation 2530. Up to 690 conditions per place. [2022-10-17 10:20:45,538 INFO L137 encePairwiseOnDemand]: 157/180 looper letters, 102 selfloop transitions, 84 changer transitions 4/306 dead transitions. [2022-10-17 10:20:45,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 306 transitions, 1232 flow [2022-10-17 10:20:45,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:20:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:20:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2022-10-17 10:20:45,544 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8083333333333333 [2022-10-17 10:20:45,544 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 873 transitions. [2022-10-17 10:20:45,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 873 transitions. [2022-10-17 10:20:45,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:45,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 873 transitions. [2022-10-17 10:20:45,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:45,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:45,553 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:45,553 INFO L175 Difference]: Start difference. First operand has 187 places, 194 transitions, 508 flow. Second operand 6 states and 873 transitions. [2022-10-17 10:20:45,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 306 transitions, 1232 flow [2022-10-17 10:20:45,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 306 transitions, 1232 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:20:45,573 INFO L231 Difference]: Finished difference. Result has 197 places, 273 transitions, 1154 flow [2022-10-17 10:20:45,574 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1154, PETRI_PLACES=197, PETRI_TRANSITIONS=273} [2022-10-17 10:20:45,575 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 14 predicate places. [2022-10-17 10:20:45,576 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 273 transitions, 1154 flow [2022-10-17 10:20:45,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:45,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:45,577 INFO L208 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] [2022-10-17 10:20:45,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:20:45,578 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:45,579 INFO L85 PathProgramCache]: Analyzing trace with hash -852845884, now seen corresponding path program 1 times [2022-10-17 10:20:45,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:45,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688481955] [2022-10-17 10:20:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:45,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:46,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:46,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688481955] [2022-10-17 10:20:46,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688481955] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:46,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:46,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:20:46,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034727020] [2022-10-17 10:20:46,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:46,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:20:46,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:20:46,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:20:46,273 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 180 [2022-10-17 10:20:46,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 273 transitions, 1154 flow. Second operand has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:46,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:46,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 180 [2022-10-17 10:20:46,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:46,833 INFO L130 PetriNetUnfolder]: 408/1337 cut-off events. [2022-10-17 10:20:46,833 INFO L131 PetriNetUnfolder]: For 930/949 co-relation queries the response was YES. [2022-10-17 10:20:46,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3662 conditions, 1337 events. 408/1337 cut-off events. For 930/949 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7315 event pairs, 97 based on Foata normal form. 0/1283 useless extension candidates. Maximal degree in co-relation 3529. Up to 782 conditions per place. [2022-10-17 10:20:46,853 INFO L137 encePairwiseOnDemand]: 169/180 looper letters, 160 selfloop transitions, 37 changer transitions 0/313 dead transitions. [2022-10-17 10:20:46,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 313 transitions, 1762 flow [2022-10-17 10:20:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:20:46,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:20:46,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 800 transitions. [2022-10-17 10:20:46,858 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2022-10-17 10:20:46,859 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 800 transitions. [2022-10-17 10:20:46,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 800 transitions. [2022-10-17 10:20:46,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:46,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 800 transitions. [2022-10-17 10:20:46,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:46,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:46,869 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:46,869 INFO L175 Difference]: Start difference. First operand has 197 places, 273 transitions, 1154 flow. Second operand 6 states and 800 transitions. [2022-10-17 10:20:46,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 313 transitions, 1762 flow [2022-10-17 10:20:46,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 313 transitions, 1744 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-10-17 10:20:46,902 INFO L231 Difference]: Finished difference. Result has 207 places, 300 transitions, 1478 flow [2022-10-17 10:20:46,903 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1478, PETRI_PLACES=207, PETRI_TRANSITIONS=300} [2022-10-17 10:20:46,906 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 24 predicate places. [2022-10-17 10:20:46,906 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 300 transitions, 1478 flow [2022-10-17 10:20:46,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:46,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:46,908 INFO L208 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] [2022-10-17 10:20:46,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:20:46,908 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:46,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash 284735950, now seen corresponding path program 1 times [2022-10-17 10:20:46,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:46,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444334192] [2022-10-17 10:20:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:46,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:47,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:47,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444334192] [2022-10-17 10:20:47,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444334192] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:47,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:47,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:20:47,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035443371] [2022-10-17 10:20:47,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:47,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:47,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:47,197 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 180 [2022-10-17 10:20:47,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 300 transitions, 1478 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:47,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:47,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 180 [2022-10-17 10:20:47,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:47,514 INFO L130 PetriNetUnfolder]: 256/1055 cut-off events. [2022-10-17 10:20:47,514 INFO L131 PetriNetUnfolder]: For 849/867 co-relation queries the response was YES. [2022-10-17 10:20:47,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2633 conditions, 1055 events. 256/1055 cut-off events. For 849/867 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5519 event pairs, 17 based on Foata normal form. 4/1035 useless extension candidates. Maximal degree in co-relation 2511. Up to 257 conditions per place. [2022-10-17 10:20:47,528 INFO L137 encePairwiseOnDemand]: 175/180 looper letters, 11 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2022-10-17 10:20:47,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 303 transitions, 1516 flow [2022-10-17 10:20:47,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:47,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2022-10-17 10:20:47,531 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9611111111111111 [2022-10-17 10:20:47,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2022-10-17 10:20:47,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2022-10-17 10:20:47,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:47,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2022-10-17 10:20:47,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:47,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:47,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:47,537 INFO L175 Difference]: Start difference. First operand has 207 places, 300 transitions, 1478 flow. Second operand 3 states and 519 transitions. [2022-10-17 10:20:47,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 303 transitions, 1516 flow [2022-10-17 10:20:47,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 303 transitions, 1460 flow, removed 28 selfloop flow, removed 0 redundant places. [2022-10-17 10:20:47,567 INFO L231 Difference]: Finished difference. Result has 210 places, 302 transitions, 1445 flow [2022-10-17 10:20:47,568 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=1422, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1445, PETRI_PLACES=210, PETRI_TRANSITIONS=302} [2022-10-17 10:20:47,569 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 27 predicate places. [2022-10-17 10:20:47,569 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 302 transitions, 1445 flow [2022-10-17 10:20:47,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:47,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:47,571 INFO L208 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] [2022-10-17 10:20:47,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:20:47,572 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-10-17 10:20:47,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:47,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2023621152, now seen corresponding path program 2 times [2022-10-17 10:20:47,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:47,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220052991] [2022-10-17 10:20:47,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:47,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:47,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:20:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:47,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:20:47,785 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:20:47,787 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2022-10-17 10:20:47,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2022-10-17 10:20:47,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2022-10-17 10:20:47,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2022-10-17 10:20:47,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2022-10-17 10:20:47,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2022-10-17 10:20:47,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2022-10-17 10:20:47,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2022-10-17 10:20:47,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2022-10-17 10:20:47,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2022-10-17 10:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2022-10-17 10:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2022-10-17 10:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2022-10-17 10:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2022-10-17 10:20:47,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2022-10-17 10:20:47,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2022-10-17 10:20:47,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2022-10-17 10:20:47,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2022-10-17 10:20:47,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2022-10-17 10:20:47,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2022-10-17 10:20:47,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2022-10-17 10:20:47,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:20:47,800 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:47,809 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-17 10:20:47,810 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:20:47,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:20:47 BasicIcfg [2022-10-17 10:20:47,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:20:47,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:20:47,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:20:47,944 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:20:47,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:38" (3/4) ... [2022-10-17 10:20:47,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:20:47,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:20:47,949 INFO L158 Benchmark]: Toolchain (without parser) took 11464.14ms. Allocated memory was 92.3MB in the beginning and 234.9MB in the end (delta: 142.6MB). Free memory was 64.0MB in the beginning and 142.1MB in the end (delta: -78.1MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2022-10-17 10:20:47,950 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:20:47,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1140.27ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 63.8MB in the beginning and 95.9MB in the end (delta: -32.1MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-10-17 10:20:47,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.25ms. Allocated memory is still 125.8MB. Free memory was 95.9MB in the beginning and 92.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:20:47,951 INFO L158 Benchmark]: Boogie Preprocessor took 72.57ms. Allocated memory is still 125.8MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:20:47,952 INFO L158 Benchmark]: RCFGBuilder took 948.75ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 68.7MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-10-17 10:20:47,952 INFO L158 Benchmark]: TraceAbstraction took 9198.80ms. Allocated memory was 125.8MB in the beginning and 234.9MB in the end (delta: 109.1MB). Free memory was 68.0MB in the beginning and 143.1MB in the end (delta: -75.1MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2022-10-17 10:20:47,953 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 234.9MB. Free memory was 143.1MB in the beginning and 142.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:20:47,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1140.27ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 63.8MB in the beginning and 95.9MB in the end (delta: -32.1MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.25ms. Allocated memory is still 125.8MB. Free memory was 95.9MB in the beginning and 92.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.57ms. Allocated memory is still 125.8MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 948.75ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 68.7MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9198.80ms. Allocated memory was 125.8MB in the beginning and 234.9MB in the end (delta: 109.1MB). Free memory was 68.0MB in the beginning and 143.1MB in the end (delta: -75.1MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 234.9MB. Free memory was 143.1MB in the beginning and 142.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; VAL [A={0:0}, B={0:0}] [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={0:0}, A_mutex={1:0}, B={0:0}] [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}] [L1245] 0 pthread_t t1; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, t1={9:0}] [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, malloc(sizeof(struct s))={-2:0}, p={-2:0}, x=3] [L1229] 0 p->datum = x VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1230] 0 p->next = ((void *)0) VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1231] 0 return p; VAL [\old(x)=3, \result={-2:0}, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) VAL [A={-2:0}, A = new(3)=58, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, new(3)={-2:0}, t1={9:0}] [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, malloc(sizeof(struct s))={-3:0}, p={-3:0}, x=5] [L1229] 0 p->datum = x VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1230] 0 p->next = ((void *)0) VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1231] 0 return p; VAL [\old(x)=5, \result={-3:0}, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B = new(5)=44, B_mutex={2:0}, new(5)={-3:0}, t1={9:0}] [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, t1={9:0}] [L1251] EXPR 0 A->datum VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, t1={9:0}] [L1251] 0 data = &A->datum VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, data={-2:0}, t1={9:0}] [L1237] EXPR 1 A->datum VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1253] 0 *data = 42 VAL [*data = 42=46, A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, data={-2:0}, t1={9:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: B = new(5) [1247] * C: A = new(3) [1246] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: *data = 42 [1253] * C: p->datum = x [1229] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 236 locations, 21 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: 8.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 299 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1092 IncrementalHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 299 mSDtfsCounter, 1092 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1478occurred in iteration=8, InterpolantAutomatonStates: 42, 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, 3.8s InterpolantComputationTime, 900 NumberOfCodeBlocks, 900 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 773 ConstructedInterpolants, 0 QuantifiedInterpolants, 1234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-17 10:20:48,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22becec-5019-464b-ac3b-7b772d16aba7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE