./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:25:36,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:25:36,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:25:36,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:25:36,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:25:36,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:25:36,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:25:36,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:25:36,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:25:36,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:25:36,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:25:36,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:25:36,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:25:36,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:25:36,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:25:36,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:25:36,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:25:36,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:25:36,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:25:36,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:25:36,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:25:36,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:25:36,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:25:36,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:25:36,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:25:36,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:25:36,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:25:36,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:25:36,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:25:36,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:25:36,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:25:36,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:25:36,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:25:36,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:25:36,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:25:36,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:25:36,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:25:36,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:25:36,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:25:36,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:25:36,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:25:36,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 21:25:36,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:25:36,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:25:36,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:25:36,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:25:36,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:25:36,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:25:36,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:25:36,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:25:36,759 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:25:36,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:25:36,760 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:25:36,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:25:36,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:25:36,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:25:36,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:25:36,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:25:36,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:25:36,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:25:36,761 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 21:25:36,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:25:36,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:25:36,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:25:36,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:25:36,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:25:36,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:25:36,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:25:36,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:25:36,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:25:36,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:25:36,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:25:36,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:25:36,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:25:36,763 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:25:36,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:25:36,763 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:25:36,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:25:36,763 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:25:36,763 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f [2022-12-13 21:25:36,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:25:36,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:25:36,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:25:36,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:25:36,972 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:25:36,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2022-12-13 21:25:39,570 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:25:39,769 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:25:39,769 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2022-12-13 21:25:39,778 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/data/d62cf57cf/013d6835e98c40539f9a5e8ec7f7a263/FLAG07d0d3aa7 [2022-12-13 21:25:39,789 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/data/d62cf57cf/013d6835e98c40539f9a5e8ec7f7a263 [2022-12-13 21:25:39,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:25:39,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:25:39,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:25:39,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:25:39,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:25:39,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:25:39" (1/1) ... [2022-12-13 21:25:39,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5a3726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:39, skipping insertion in model container [2022-12-13 21:25:39,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:25:39" (1/1) ... [2022-12-13 21:25:39,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:25:39,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:25:40,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:25:40,034 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:25:40,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:25:40,084 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:25:40,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40 WrapperNode [2022-12-13 21:25:40,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:25:40,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:25:40,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:25:40,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:25:40,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,114 INFO L138 Inliner]: procedures = 164, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-12-13 21:25:40,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:25:40,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:25:40,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:25:40,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:25:40,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,133 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:25:40,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:25:40,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:25:40,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:25:40,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (1/1) ... [2022-12-13 21:25:40,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:25:40,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:25:40,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:25:40,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:25:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:25:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:25:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:25:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:25:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:25:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 21:25:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 21:25:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:25:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:25:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:25:40,189 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:25:40,299 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:25:40,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:25:40,489 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:25:40,496 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:25:40,497 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:25:40,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:25:40 BoogieIcfgContainer [2022-12-13 21:25:40,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:25:40,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:25:40,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:25:40,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:25:40,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:25:39" (1/3) ... [2022-12-13 21:25:40,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f03d50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:25:40, skipping insertion in model container [2022-12-13 21:25:40,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:25:40" (2/3) ... [2022-12-13 21:25:40,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f03d50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:25:40, skipping insertion in model container [2022-12-13 21:25:40,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:25:40" (3/3) ... [2022-12-13 21:25:40,506 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2022-12-13 21:25:40,513 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:25:40,520 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:25:40,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 21:25:40,521 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:25:40,577 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 21:25:40,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 94 transitions, 193 flow [2022-12-13 21:25:40,653 INFO L130 PetriNetUnfolder]: 3/93 cut-off events. [2022-12-13 21:25:40,654 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:25:40,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 3/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-13 21:25:40,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 94 transitions, 193 flow [2022-12-13 21:25:40,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 93 transitions, 189 flow [2022-12-13 21:25:40,666 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:25:40,676 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 93 transitions, 189 flow [2022-12-13 21:25:40,678 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 93 transitions, 189 flow [2022-12-13 21:25:40,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 93 transitions, 189 flow [2022-12-13 21:25:40,702 INFO L130 PetriNetUnfolder]: 3/93 cut-off events. [2022-12-13 21:25:40,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:25:40,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 3/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-13 21:25:40,703 INFO L119 LiptonReduction]: Number of co-enabled transitions 1500 [2022-12-13 21:25:41,828 INFO L134 LiptonReduction]: Checked pairs total: 7645 [2022-12-13 21:25:41,828 INFO L136 LiptonReduction]: Total number of compositions: 63 [2022-12-13 21:25:41,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:25:41,848 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;@2d64930a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:25:41,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 21:25:41,853 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-12-13 21:25:41,853 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:25:41,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:25:41,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:25:41,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 21:25:41,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:41,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1021147896, now seen corresponding path program 1 times [2022-12-13 21:25:41,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:41,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6281743] [2022-12-13 21:25:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:41,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:42,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:25:42,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6281743] [2022-12-13 21:25:42,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6281743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:25:42,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:25:42,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:25:42,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788943424] [2022-12-13 21:25:42,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:25:42,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:25:42,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:25:42,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:25:42,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:25:42,109 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 157 [2022-12-13 21:25:42,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:25:42,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 157 [2022-12-13 21:25:42,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:25:42,172 INFO L130 PetriNetUnfolder]: 37/169 cut-off events. [2022-12-13 21:25:42,172 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:25:42,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 169 events. 37/169 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 650 event pairs, 36 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 248. Up to 89 conditions per place. [2022-12-13 21:25:42,175 INFO L137 encePairwiseOnDemand]: 154/157 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2022-12-13 21:25:42,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2022-12-13 21:25:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:25:42,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:25:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2022-12-13 21:25:42,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5923566878980892 [2022-12-13 21:25:42,187 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2022-12-13 21:25:42,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2022-12-13 21:25:42,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:25:42,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2022-12-13 21:25:42,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,201 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 279 transitions. [2022-12-13 21:25:42,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2022-12-13 21:25:42,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:25:42,204 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2022-12-13 21:25:42,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2022-12-13 21:25:42,209 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2022-12-13 21:25:42,209 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2022-12-13 21:25:42,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,210 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:25:42,210 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:25:42,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:25:42,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 21:25:42,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:42,211 INFO L85 PathProgramCache]: Analyzing trace with hash 349400234, now seen corresponding path program 1 times [2022-12-13 21:25:42,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:42,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439633084] [2022-12-13 21:25:42,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:42,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:42,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:25:42,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439633084] [2022-12-13 21:25:42,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439633084] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:25:42,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119467783] [2022-12-13 21:25:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:42,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:25:42,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:25:42,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:25:42,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 21:25:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:42,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:25:42,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:25:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:42,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:25:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:42,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119467783] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:25:42,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:25:42,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 21:25:42,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362648951] [2022-12-13 21:25:42,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:25:42,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:25:42,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:25:42,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:25:42,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:25:42,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 157 [2022-12-13 21:25:42,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 87.57142857142857) internal successors, (613), 7 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:25:42,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 157 [2022-12-13 21:25:42,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:25:42,510 INFO L130 PetriNetUnfolder]: 37/172 cut-off events. [2022-12-13 21:25:42,510 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:25:42,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 172 events. 37/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 653 event pairs, 36 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 267. Up to 89 conditions per place. [2022-12-13 21:25:42,512 INFO L137 encePairwiseOnDemand]: 154/157 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2022-12-13 21:25:42,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2022-12-13 21:25:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:25:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:25:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 539 transitions. [2022-12-13 21:25:42,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5721868365180467 [2022-12-13 21:25:42,516 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 539 transitions. [2022-12-13 21:25:42,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 539 transitions. [2022-12-13 21:25:42,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:25:42,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 539 transitions. [2022-12-13 21:25:42,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,523 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,523 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 539 transitions. [2022-12-13 21:25:42,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2022-12-13 21:25:42,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 21:25:42,525 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2022-12-13 21:25:42,526 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2022-12-13 21:25:42,526 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2022-12-13 21:25:42,527 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2022-12-13 21:25:42,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.57142857142857) internal successors, (613), 7 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:42,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:25:42,528 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:25:42,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:25:42,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:25:42,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 21:25:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:42,733 INFO L85 PathProgramCache]: Analyzing trace with hash 262515782, now seen corresponding path program 2 times [2022-12-13 21:25:42,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:42,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110147543] [2022-12-13 21:25:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:42,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 21:25:43,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:25:43,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110147543] [2022-12-13 21:25:43,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110147543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:25:43,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:25:43,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:25:43,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915484073] [2022-12-13 21:25:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:25:43,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:25:43,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:25:43,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:25:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:25:43,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 157 [2022-12-13 21:25:43,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:25:43,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 157 [2022-12-13 21:25:43,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:25:43,463 INFO L130 PetriNetUnfolder]: 310/735 cut-off events. [2022-12-13 21:25:43,464 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 21:25:43,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 735 events. 310/735 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3832 event pairs, 83 based on Foata normal form. 0/711 useless extension candidates. Maximal degree in co-relation 1407. Up to 307 conditions per place. [2022-12-13 21:25:43,467 INFO L137 encePairwiseOnDemand]: 135/157 looper letters, 109 selfloop transitions, 42 changer transitions 0/154 dead transitions. [2022-12-13 21:25:43,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 154 transitions, 648 flow [2022-12-13 21:25:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:25:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:25:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2022-12-13 21:25:43,470 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5912951167728238 [2022-12-13 21:25:43,470 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2022-12-13 21:25:43,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2022-12-13 21:25:43,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:25:43,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2022-12-13 21:25:43,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,473 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,473 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 557 transitions. [2022-12-13 21:25:43,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 154 transitions, 648 flow [2022-12-13 21:25:43,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 154 transitions, 634 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 21:25:43,476 INFO L231 Difference]: Finished difference. Result has 57 places, 86 transitions, 420 flow [2022-12-13 21:25:43,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=57, PETRI_TRANSITIONS=86} [2022-12-13 21:25:43,476 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2022-12-13 21:25:43,476 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 86 transitions, 420 flow [2022-12-13 21:25:43,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:25:43,477 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:25:43,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:25:43,477 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 21:25:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1703804027, now seen corresponding path program 1 times [2022-12-13 21:25:43,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:43,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249486993] [2022-12-13 21:25:43,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:43,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:43,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:25:43,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249486993] [2022-12-13 21:25:43,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249486993] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:25:43,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845462421] [2022-12-13 21:25:43,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:43,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:25:43,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:25:43,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:25:43,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 21:25:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:43,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:25:43,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:25:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:43,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:25:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:43,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845462421] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:25:43,673 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:25:43,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 21:25:43,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905938142] [2022-12-13 21:25:43,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:25:43,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:25:43,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:25:43,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:25:43,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:25:43,700 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 157 [2022-12-13 21:25:43,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 86 transitions, 420 flow. Second operand has 13 states, 13 states have (on average 87.46153846153847) internal successors, (1137), 13 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:25:43,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 157 [2022-12-13 21:25:43,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:25:43,804 INFO L130 PetriNetUnfolder]: 150/506 cut-off events. [2022-12-13 21:25:43,804 INFO L131 PetriNetUnfolder]: For 265/275 co-relation queries the response was YES. [2022-12-13 21:25:43,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 506 events. 150/506 cut-off events. For 265/275 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2940 event pairs, 61 based on Foata normal form. 6/498 useless extension candidates. Maximal degree in co-relation 1272. Up to 212 conditions per place. [2022-12-13 21:25:43,807 INFO L137 encePairwiseOnDemand]: 154/157 looper letters, 35 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2022-12-13 21:25:43,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 92 transitions, 548 flow [2022-12-13 21:25:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:25:43,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 21:25:43,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1064 transitions. [2022-12-13 21:25:43,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.564755838641189 [2022-12-13 21:25:43,810 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1064 transitions. [2022-12-13 21:25:43,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1064 transitions. [2022-12-13 21:25:43,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:25:43,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1064 transitions. [2022-12-13 21:25:43,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 88.66666666666667) internal successors, (1064), 12 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 157.0) internal successors, (2041), 13 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,815 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 157.0) internal successors, (2041), 13 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,815 INFO L175 Difference]: Start difference. First operand has 57 places, 86 transitions, 420 flow. Second operand 12 states and 1064 transitions. [2022-12-13 21:25:43,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 92 transitions, 548 flow [2022-12-13 21:25:43,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:25:43,819 INFO L231 Difference]: Finished difference. Result has 74 places, 92 transitions, 504 flow [2022-12-13 21:25:43,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=504, PETRI_PLACES=74, PETRI_TRANSITIONS=92} [2022-12-13 21:25:43,820 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 35 predicate places. [2022-12-13 21:25:43,820 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 92 transitions, 504 flow [2022-12-13 21:25:43,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 87.46153846153847) internal successors, (1137), 13 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:43,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:25:43,821 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:25:43,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 21:25:44,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:25:44,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 21:25:44,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:44,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2118432507, now seen corresponding path program 2 times [2022-12-13 21:25:44,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:44,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857848401] [2022-12-13 21:25:44,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:44,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:25:44,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:25:44,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857848401] [2022-12-13 21:25:44,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857848401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:25:44,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:25:44,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:25:44,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799024994] [2022-12-13 21:25:44,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:25:44,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:25:44,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:25:44,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:25:44,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:25:44,374 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 157 [2022-12-13 21:25:44,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 92 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:44,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:25:44,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 157 [2022-12-13 21:25:44,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:25:44,587 INFO L130 PetriNetUnfolder]: 438/1007 cut-off events. [2022-12-13 21:25:44,587 INFO L131 PetriNetUnfolder]: For 573/582 co-relation queries the response was YES. [2022-12-13 21:25:44,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3057 conditions, 1007 events. 438/1007 cut-off events. For 573/582 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5488 event pairs, 114 based on Foata normal form. 24/1030 useless extension candidates. Maximal degree in co-relation 2977. Up to 611 conditions per place. [2022-12-13 21:25:44,592 INFO L137 encePairwiseOnDemand]: 140/157 looper letters, 120 selfloop transitions, 53 changer transitions 6/183 dead transitions. [2022-12-13 21:25:44,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 183 transitions, 1230 flow [2022-12-13 21:25:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:25:44,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:25:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2022-12-13 21:25:44,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5360934182590233 [2022-12-13 21:25:44,594 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2022-12-13 21:25:44,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2022-12-13 21:25:44,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:25:44,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2022-12-13 21:25:44,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 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) [2022-12-13 21:25:44,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:44,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:44,596 INFO L175 Difference]: Start difference. First operand has 74 places, 92 transitions, 504 flow. Second operand 6 states and 505 transitions. [2022-12-13 21:25:44,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 183 transitions, 1230 flow [2022-12-13 21:25:44,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 183 transitions, 1182 flow, removed 19 selfloop flow, removed 5 redundant places. [2022-12-13 21:25:44,602 INFO L231 Difference]: Finished difference. Result has 79 places, 143 transitions, 962 flow [2022-12-13 21:25:44,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=79, PETRI_TRANSITIONS=143} [2022-12-13 21:25:44,602 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 40 predicate places. [2022-12-13 21:25:44,603 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 143 transitions, 962 flow [2022-12-13 21:25:44,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:44,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:25:44,603 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:25:44,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:25:44,603 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 21:25:44,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:44,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2133576693, now seen corresponding path program 1 times [2022-12-13 21:25:44,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:44,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732156256] [2022-12-13 21:25:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:44,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:25:44,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:25:44,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732156256] [2022-12-13 21:25:44,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732156256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:25:44,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:25:44,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:25:44,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825250023] [2022-12-13 21:25:44,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:25:44,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:25:44,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:25:44,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:25:44,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:25:44,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 157 [2022-12-13 21:25:44,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 143 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:44,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:25:44,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 157 [2022-12-13 21:25:44,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:25:45,225 INFO L130 PetriNetUnfolder]: 539/1219 cut-off events. [2022-12-13 21:25:45,225 INFO L131 PetriNetUnfolder]: For 2036/2061 co-relation queries the response was YES. [2022-12-13 21:25:45,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4696 conditions, 1219 events. 539/1219 cut-off events. For 2036/2061 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6945 event pairs, 114 based on Foata normal form. 25/1242 useless extension candidates. Maximal degree in co-relation 4636. Up to 788 conditions per place. [2022-12-13 21:25:45,231 INFO L137 encePairwiseOnDemand]: 140/157 looper letters, 138 selfloop transitions, 58 changer transitions 43/243 dead transitions. [2022-12-13 21:25:45,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 243 transitions, 2006 flow [2022-12-13 21:25:45,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:25:45,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:25:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2022-12-13 21:25:45,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5382165605095541 [2022-12-13 21:25:45,232 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2022-12-13 21:25:45,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2022-12-13 21:25:45,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:25:45,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2022-12-13 21:25:45,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:45,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:45,235 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:45,235 INFO L175 Difference]: Start difference. First operand has 79 places, 143 transitions, 962 flow. Second operand 6 states and 507 transitions. [2022-12-13 21:25:45,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 243 transitions, 2006 flow [2022-12-13 21:25:45,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 243 transitions, 1998 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-12-13 21:25:45,244 INFO L231 Difference]: Finished difference. Result has 88 places, 170 transitions, 1362 flow [2022-12-13 21:25:45,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1362, PETRI_PLACES=88, PETRI_TRANSITIONS=170} [2022-12-13 21:25:45,245 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 49 predicate places. [2022-12-13 21:25:45,245 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 170 transitions, 1362 flow [2022-12-13 21:25:45,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:45,245 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:25:45,245 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:25:45,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:25:45,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 21:25:45,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1823518426, now seen corresponding path program 1 times [2022-12-13 21:25:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:45,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293905528] [2022-12-13 21:25:45,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:45,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:25:45,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:25:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:25:45,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:25:45,295 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:25:45,296 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-12-13 21:25:45,297 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-12-13 21:25:45,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2022-12-13 21:25:45,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-13 21:25:45,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-12-13 21:25:45,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-12-13 21:25:45,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-12-13 21:25:45,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:25:45,299 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-12-13 21:25:45,304 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:25:45,304 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:25:45,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:25:45 BasicIcfg [2022-12-13 21:25:45,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:25:45,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:25:45,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:25:45,329 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:25:45,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:25:40" (3/4) ... [2022-12-13 21:25:45,331 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:25:45,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:25:45,332 INFO L158 Benchmark]: Toolchain (without parser) took 5539.43ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 30.1MB in the end (delta: 61.3MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2022-12-13 21:25:45,332 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:25:45,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.21ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 72.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:25:45,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.25ms. Allocated memory is still 125.8MB. Free memory was 72.1MB in the beginning and 70.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:25:45,333 INFO L158 Benchmark]: Boogie Preprocessor took 20.58ms. Allocated memory is still 125.8MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:25:45,333 INFO L158 Benchmark]: RCFGBuilder took 363.43ms. Allocated memory is still 125.8MB. Free memory was 68.0MB in the beginning and 52.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 21:25:45,333 INFO L158 Benchmark]: TraceAbstraction took 4827.60ms. Allocated memory is still 125.8MB. Free memory was 52.5MB in the beginning and 30.1MB in the end (delta: 22.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-13 21:25:45,333 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 125.8MB. Free memory is still 30.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:25:45,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.21ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 72.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.25ms. Allocated memory is still 125.8MB. Free memory was 72.1MB in the beginning and 70.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.58ms. Allocated memory is still 125.8MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.43ms. Allocated memory is still 125.8MB. Free memory was 68.0MB in the beginning and 52.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4827.60ms. Allocated memory is still 125.8MB. Free memory was 52.5MB in the beginning and 30.1MB in the end (delta: 22.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 125.8MB. Free memory is still 30.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 94 PlacesBefore, 39 PlacesAfterwards, 93 TransitionsBefore, 36 TransitionsAfterwards, 1500 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 7645 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1848, independent: 1452, independent conditional: 0, independent unconditional: 1452, dependent: 396, dependent conditional: 0, dependent unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 644, independent: 601, independent conditional: 0, independent unconditional: 601, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1848, independent: 851, independent conditional: 0, independent unconditional: 851, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 644, unknown conditional: 0, unknown unconditional: 644] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 688]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; [L685] 0 pthread_mutex_t m[10]; [L693] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L693] COND FALSE 0 !(i < 10) [L695] 0 int i = __VERIFIER_nondet_int(); [L696] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L696] RET 0 assume_abort_if_not(0 <= i && i < 10) [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=10, i=0, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L700] EXPR 0 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, i=10, i=0, id={3:0}, m={2:0}, pthread_mutex_lock(&m[4])=0] [L688] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, i=10, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, data[4]++=0, i=0, i=10, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, data[4]++=241, data[4]++=0, i=0, i=10, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [700] and C: data[4]++ [688] - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: 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: 688]: 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, 119 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 331 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 170 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 964 IncrementalHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 170 mSolverCounterUnsat, 9 mSDtfsCounter, 964 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1362occurred in iteration=6, InterpolantAutomatonStates: 39, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 120/153 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 proved your program to be incorrect! [2022-12-13 21:25:45,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c51513-136c-4e25-a27d-07d7184876f3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE