./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:38:16,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:38:16,831 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:38:16,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:38:16,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:38:16,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:38:16,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:38:16,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:38:16,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:38:16,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:38:16,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:38:16,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:38:16,865 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:38:16,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:38:16,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:38:16,867 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:38:16,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:38:16,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:38:16,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:38:16,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:38:16,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:38:16,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:38:16,871 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:38:16,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:38:16,872 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:38:16,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:38:16,873 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:38:16,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:38:16,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:38:16,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:38:16,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:16,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:38:16,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:38:16,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:38:16,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:38:16,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:38:16,879 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:38:16,879 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:38:16,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:38:16,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:38:16,880 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:38:16,881 INFO L153 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_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd [2023-11-19 07:38:17,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:38:17,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:38:17,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:38:17,276 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:38:17,279 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:38:17,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2023-11-19 07:38:20,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:38:20,820 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:38:20,821 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2023-11-19 07:38:20,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/data/bd761464f/ef35030c39fa4f2c822783938feff16b/FLAGc4f2177aa [2023-11-19 07:38:20,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/data/bd761464f/ef35030c39fa4f2c822783938feff16b [2023-11-19 07:38:20,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:38:20,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:38:20,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:20,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:38:20,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:38:20,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:20" (1/1) ... [2023-11-19 07:38:20,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff0c4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20, skipping insertion in model container [2023-11-19 07:38:20,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:20" (1/1) ... [2023-11-19 07:38:20,965 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:38:21,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:21,661 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:38:21,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:21,875 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:38:21,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21 WrapperNode [2023-11-19 07:38:21,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:21,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:21,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:38:21,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:38:21,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:21,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:21,988 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2023-11-19 07:38:21,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:21,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:38:21,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:38:21,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:38:22,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:38:22,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:38:22,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:38:22,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:38:22,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (1/1) ... [2023-11-19 07:38:22,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:22,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:22,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:38:22,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:38:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:38:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:38:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:38:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:38:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:38:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:38:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:38:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:38:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:38:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:38:22,161 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:38:22,325 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:38:22,328 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:38:22,658 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:38:22,669 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:38:22,669 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:38:22,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:22 BoogieIcfgContainer [2023-11-19 07:38:22,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:38:22,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:38:22,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:38:22,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:38:22,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:20" (1/3) ... [2023-11-19 07:38:22,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc2b0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:22, skipping insertion in model container [2023-11-19 07:38:22,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:21" (2/3) ... [2023-11-19 07:38:22,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc2b0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:22, skipping insertion in model container [2023-11-19 07:38:22,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:22" (3/3) ... [2023-11-19 07:38:22,688 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_09-tricky_address4.i [2023-11-19 07:38:22,699 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:38:22,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:38:22,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:38:22,712 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:38:22,880 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:38:22,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 105 transitions, 214 flow [2023-11-19 07:38:22,975 INFO L124 PetriNetUnfolderBase]: 4/104 cut-off events. [2023-11-19 07:38:22,975 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:22,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 4/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-11-19 07:38:22,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 105 transitions, 214 flow [2023-11-19 07:38:22,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 104 transitions, 211 flow [2023-11-19 07:38:22,990 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:38:23,000 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 104 transitions, 211 flow [2023-11-19 07:38:23,003 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 104 transitions, 211 flow [2023-11-19 07:38:23,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 104 transitions, 211 flow [2023-11-19 07:38:23,059 INFO L124 PetriNetUnfolderBase]: 4/104 cut-off events. [2023-11-19 07:38:23,060 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:23,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 4/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-11-19 07:38:23,065 INFO L119 LiptonReduction]: Number of co-enabled transitions 2460 [2023-11-19 07:38:25,207 INFO L134 LiptonReduction]: Checked pairs total: 9208 [2023-11-19 07:38:25,207 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-11-19 07:38:25,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:38:25,232 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=LoopHeads, 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;@abf4360, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:38:25,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 07:38:25,238 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:38:25,238 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-11-19 07:38:25,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:25,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:25,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:25,240 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:38:25,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:25,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1189479373, now seen corresponding path program 1 times [2023-11-19 07:38:25,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:25,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144967750] [2023-11-19 07:38:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:25,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:25,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:25,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144967750] [2023-11-19 07:38:25,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144967750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:25,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:25,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:25,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237735992] [2023-11-19 07:38:25,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:25,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:25,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:25,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:25,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:25,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 181 [2023-11-19 07:38:25,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:25,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 181 [2023-11-19 07:38:25,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:25,765 INFO L124 PetriNetUnfolderBase]: 37/165 cut-off events. [2023-11-19 07:38:25,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:25,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 165 events. 37/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 244. Up to 89 conditions per place. [2023-11-19 07:38:25,770 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-11-19 07:38:25,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2023-11-19 07:38:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2023-11-19 07:38:25,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5580110497237569 [2023-11-19 07:38:25,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2023-11-19 07:38:25,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2023-11-19 07:38:25,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:25,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2023-11-19 07:38:25,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,833 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 303 transitions. [2023-11-19 07:38:25,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2023-11-19 07:38:25,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:38:25,839 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-11-19 07:38:25,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, 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} [2023-11-19 07:38:25,844 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-11-19 07:38:25,845 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-11-19 07:38:25,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:25,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:25,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:25,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:38:25,846 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:38:25,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:25,847 INFO L85 PathProgramCache]: Analyzing trace with hash 534390817, now seen corresponding path program 1 times [2023-11-19 07:38:25,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:25,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468442832] [2023-11-19 07:38:25,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:25,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:26,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468442832] [2023-11-19 07:38:26,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468442832] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:38:26,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074274503] [2023-11-19 07:38:26,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:26,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:26,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:26,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:38:26,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:38:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:26,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:38:26,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:38:26,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:26,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:38:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:26,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074274503] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:38:26,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:38:26,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:38:26,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856953706] [2023-11-19 07:38:26,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:38:26,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:38:26,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:26,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:38:26,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:38:26,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 181 [2023-11-19 07:38:26,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:26,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 181 [2023-11-19 07:38:26,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:26,372 INFO L124 PetriNetUnfolderBase]: 37/168 cut-off events. [2023-11-19 07:38:26,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:38:26,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 168 events. 37/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 263. Up to 89 conditions per place. [2023-11-19 07:38:26,374 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-11-19 07:38:26,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2023-11-19 07:38:26,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:26,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 587 transitions. [2023-11-19 07:38:26,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5405156537753223 [2023-11-19 07:38:26,378 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 587 transitions. [2023-11-19 07:38:26,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 587 transitions. [2023-11-19 07:38:26,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:26,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 587 transitions. [2023-11-19 07:38:26,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,386 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,386 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 587 transitions. [2023-11-19 07:38:26,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2023-11-19 07:38:26,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 07:38:26,389 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-11-19 07:38:26,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, 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} [2023-11-19 07:38:26,390 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-11-19 07:38:26,390 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-11-19 07:38:26,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:26,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:26,391 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:26,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:38:26,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:26,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:38:26,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:26,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2133116178, now seen corresponding path program 2 times [2023-11-19 07:38:26,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:26,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231393779] [2023-11-19 07:38:26,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:26,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:38:27,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:27,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231393779] [2023-11-19 07:38:27,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231393779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:27,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:27,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:27,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755271050] [2023-11-19 07:38:27,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:27,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:27,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:27,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:27,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:27,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 181 [2023-11-19 07:38:27,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:27,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:27,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 181 [2023-11-19 07:38:27,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:27,753 INFO L124 PetriNetUnfolderBase]: 209/519 cut-off events. [2023-11-19 07:38:27,753 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:38:27,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 519 events. 209/519 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2556 event pairs, 86 based on Foata normal form. 0/501 useless extension candidates. Maximal degree in co-relation 982. Up to 259 conditions per place. [2023-11-19 07:38:27,760 INFO L140 encePairwiseOnDemand]: 170/181 looper letters, 67 selfloop transitions, 22 changer transitions 0/97 dead transitions. [2023-11-19 07:38:27,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 97 transitions, 410 flow [2023-11-19 07:38:27,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:27,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2023-11-19 07:38:27,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5377532228360957 [2023-11-19 07:38:27,764 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 584 transitions. [2023-11-19 07:38:27,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 584 transitions. [2023-11-19 07:38:27,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:27,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 584 transitions. [2023-11-19 07:38:27,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:27,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:27,771 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:27,772 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 584 transitions. [2023-11-19 07:38:27,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 97 transitions, 410 flow [2023-11-19 07:38:27,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 396 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-19 07:38:27,777 INFO L231 Difference]: Finished difference. Result has 56 places, 62 transitions, 250 flow [2023-11-19 07:38:27,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=250, PETRI_PLACES=56, PETRI_TRANSITIONS=62} [2023-11-19 07:38:27,778 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 17 predicate places. [2023-11-19 07:38:27,778 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 62 transitions, 250 flow [2023-11-19 07:38:27,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:27,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:27,780 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:27,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:38:27,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:38:27,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:27,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1864450163, now seen corresponding path program 1 times [2023-11-19 07:38:27,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:27,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135656215] [2023-11-19 07:38:27,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:27,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:38:28,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:28,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135656215] [2023-11-19 07:38:28,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135656215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:28,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:28,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:28,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620459680] [2023-11-19 07:38:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:28,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:28,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:28,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:28,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:28,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 181 [2023-11-19 07:38:28,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 62 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:28,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 181 [2023-11-19 07:38:28,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:28,711 INFO L124 PetriNetUnfolderBase]: 242/649 cut-off events. [2023-11-19 07:38:28,711 INFO L125 PetriNetUnfolderBase]: For 142/143 co-relation queries the response was YES. [2023-11-19 07:38:28,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 649 events. 242/649 cut-off events. For 142/143 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3755 event pairs, 105 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 1466. Up to 371 conditions per place. [2023-11-19 07:38:28,718 INFO L140 encePairwiseOnDemand]: 170/181 looper letters, 73 selfloop transitions, 26 changer transitions 0/115 dead transitions. [2023-11-19 07:38:28,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 115 transitions, 574 flow [2023-11-19 07:38:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2023-11-19 07:38:28,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5276243093922652 [2023-11-19 07:38:28,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 573 transitions. [2023-11-19 07:38:28,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 573 transitions. [2023-11-19 07:38:28,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:28,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 573 transitions. [2023-11-19 07:38:28,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,729 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,729 INFO L175 Difference]: Start difference. First operand has 56 places, 62 transitions, 250 flow. Second operand 6 states and 573 transitions. [2023-11-19 07:38:28,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 115 transitions, 574 flow [2023-11-19 07:38:28,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 115 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:28,736 INFO L231 Difference]: Finished difference. Result has 65 places, 84 transitions, 428 flow [2023-11-19 07:38:28,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=65, PETRI_TRANSITIONS=84} [2023-11-19 07:38:28,738 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 26 predicate places. [2023-11-19 07:38:28,738 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 84 transitions, 428 flow [2023-11-19 07:38:28,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:28,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:28,739 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:28,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:38:28,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:38:28,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:28,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1766427568, now seen corresponding path program 1 times [2023-11-19 07:38:28,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:28,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993180812] [2023-11-19 07:38:28,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:28,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:28,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:28,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993180812] [2023-11-19 07:38:28,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993180812] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:38:28,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587531882] [2023-11-19 07:38:28,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:28,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:28,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:28,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:38:28,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:38:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:28,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:38:28,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:38:28,995 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:28,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:38:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:29,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587531882] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:38:29,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:38:29,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-19 07:38:29,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928445428] [2023-11-19 07:38:29,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:38:29,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:38:29,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:29,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:38:29,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:38:29,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 181 [2023-11-19 07:38:29,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 84 transitions, 428 flow. Second operand has 13 states, 13 states have (on average 95.46153846153847) internal successors, (1241), 13 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:29,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:29,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 181 [2023-11-19 07:38:29,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:29,315 INFO L124 PetriNetUnfolderBase]: 132/486 cut-off events. [2023-11-19 07:38:29,315 INFO L125 PetriNetUnfolderBase]: For 241/248 co-relation queries the response was YES. [2023-11-19 07:38:29,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 486 events. 132/486 cut-off events. For 241/248 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3051 event pairs, 59 based on Foata normal form. 6/479 useless extension candidates. Maximal degree in co-relation 1195. Up to 227 conditions per place. [2023-11-19 07:38:29,321 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 35 selfloop transitions, 11 changer transitions 0/90 dead transitions. [2023-11-19 07:38:29,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 90 transitions, 556 flow [2023-11-19 07:38:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:38:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 07:38:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1160 transitions. [2023-11-19 07:38:29,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5340699815837937 [2023-11-19 07:38:29,327 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1160 transitions. [2023-11-19 07:38:29,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1160 transitions. [2023-11-19 07:38:29,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:29,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1160 transitions. [2023-11-19 07:38:29,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.66666666666667) internal successors, (1160), 12 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:29,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:29,341 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:29,341 INFO L175 Difference]: Start difference. First operand has 65 places, 84 transitions, 428 flow. Second operand 12 states and 1160 transitions. [2023-11-19 07:38:29,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 90 transitions, 556 flow [2023-11-19 07:38:29,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 90 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:29,353 INFO L231 Difference]: Finished difference. Result has 82 places, 90 transitions, 512 flow [2023-11-19 07:38:29,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=512, PETRI_PLACES=82, PETRI_TRANSITIONS=90} [2023-11-19 07:38:29,356 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 43 predicate places. [2023-11-19 07:38:29,356 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 90 transitions, 512 flow [2023-11-19 07:38:29,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 95.46153846153847) internal successors, (1241), 13 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:29,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:29,357 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:29,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:38:29,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:29,571 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)] === [2023-11-19 07:38:29,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:29,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1504144912, now seen corresponding path program 2 times [2023-11-19 07:38:29,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:29,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864078855] [2023-11-19 07:38:29,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:29,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-19 07:38:30,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:30,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864078855] [2023-11-19 07:38:30,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864078855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:30,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:30,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:30,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019528178] [2023-11-19 07:38:30,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:30,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:30,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:30,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:30,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:30,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-11-19 07:38:30,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 90 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:30,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-11-19 07:38:30,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:30,632 INFO L124 PetriNetUnfolderBase]: 470/1115 cut-off events. [2023-11-19 07:38:30,632 INFO L125 PetriNetUnfolderBase]: For 783/802 co-relation queries the response was YES. [2023-11-19 07:38:30,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3273 conditions, 1115 events. 470/1115 cut-off events. For 783/802 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6464 event pairs, 146 based on Foata normal form. 1/1071 useless extension candidates. Maximal degree in co-relation 3188. Up to 681 conditions per place. [2023-11-19 07:38:30,645 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 129 selfloop transitions, 59 changer transitions 2/194 dead transitions. [2023-11-19 07:38:30,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 194 transitions, 1357 flow [2023-11-19 07:38:30,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 564 transitions. [2023-11-19 07:38:30,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5193370165745856 [2023-11-19 07:38:30,651 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 564 transitions. [2023-11-19 07:38:30,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 564 transitions. [2023-11-19 07:38:30,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:30,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 564 transitions. [2023-11-19 07:38:30,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,657 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,657 INFO L175 Difference]: Start difference. First operand has 82 places, 90 transitions, 512 flow. Second operand 6 states and 564 transitions. [2023-11-19 07:38:30,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 194 transitions, 1357 flow [2023-11-19 07:38:30,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 194 transitions, 1309 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-11-19 07:38:30,669 INFO L231 Difference]: Finished difference. Result has 86 places, 142 transitions, 982 flow [2023-11-19 07:38:30,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=982, PETRI_PLACES=86, PETRI_TRANSITIONS=142} [2023-11-19 07:38:30,670 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 47 predicate places. [2023-11-19 07:38:30,670 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 142 transitions, 982 flow [2023-11-19 07:38:30,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:30,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:30,671 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:30,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:38:30,671 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:38:30,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1290230352, now seen corresponding path program 1 times [2023-11-19 07:38:30,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:30,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466804001] [2023-11-19 07:38:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:31,111 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-19 07:38:31,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:31,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466804001] [2023-11-19 07:38:31,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466804001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:31,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:31,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:31,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499543758] [2023-11-19 07:38:31,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:31,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:38:31,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:31,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:38:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:38:31,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-11-19 07:38:31,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 142 transitions, 982 flow. Second operand has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:31,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:31,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-11-19 07:38:31,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:31,714 INFO L124 PetriNetUnfolderBase]: 574/1336 cut-off events. [2023-11-19 07:38:31,715 INFO L125 PetriNetUnfolderBase]: For 2062/2085 co-relation queries the response was YES. [2023-11-19 07:38:31,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4833 conditions, 1336 events. 574/1336 cut-off events. For 2062/2085 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 8083 event pairs, 144 based on Foata normal form. 3/1275 useless extension candidates. Maximal degree in co-relation 4768. Up to 889 conditions per place. [2023-11-19 07:38:31,730 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 147 selfloop transitions, 68 changer transitions 21/245 dead transitions. [2023-11-19 07:38:31,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 245 transitions, 2013 flow [2023-11-19 07:38:31,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2023-11-19 07:38:31,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509208103130755 [2023-11-19 07:38:31,734 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 553 transitions. [2023-11-19 07:38:31,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 553 transitions. [2023-11-19 07:38:31,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:31,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 553 transitions. [2023-11-19 07:38:31,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:31,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:31,741 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:31,741 INFO L175 Difference]: Start difference. First operand has 86 places, 142 transitions, 982 flow. Second operand 6 states and 553 transitions. [2023-11-19 07:38:31,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 245 transitions, 2013 flow [2023-11-19 07:38:31,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 245 transitions, 1945 flow, removed 34 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:31,767 INFO L231 Difference]: Finished difference. Result has 95 places, 181 transitions, 1437 flow [2023-11-19 07:38:31,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1437, PETRI_PLACES=95, PETRI_TRANSITIONS=181} [2023-11-19 07:38:31,769 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 56 predicate places. [2023-11-19 07:38:31,769 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 181 transitions, 1437 flow [2023-11-19 07:38:31,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:31,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:31,770 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:31,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:38:31,770 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:38:31,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:31,771 INFO L85 PathProgramCache]: Analyzing trace with hash 274780314, now seen corresponding path program 1 times [2023-11-19 07:38:31,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:31,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368153504] [2023-11-19 07:38:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:31,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:38:31,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:38:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:38:31,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:38:31,875 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:38:31,876 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-11-19 07:38:31,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-19 07:38:31,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-19 07:38:31,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-11-19 07:38:31,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-19 07:38:31,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-19 07:38:31,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-19 07:38:31,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:38:31,883 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2023-11-19 07:38:31,890 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:38:31,890 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:38:31,927 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:38:31,928 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-19 07:38:31,929 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated [2023-11-19 07:38:31,929 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,929 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,930 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,930 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,930 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post34 could not be translated [2023-11-19 07:38:31,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:38:31 BasicIcfg [2023-11-19 07:38:31,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:38:31,941 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:38:31,942 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:38:31,942 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:38:31,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:22" (3/4) ... [2023-11-19 07:38:31,944 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:38:31,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:38:31,946 INFO L158 Benchmark]: Toolchain (without parser) took 11065.45ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 138.1MB in the beginning and 99.9MB in the end (delta: 38.2MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:31,946 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:38:31,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 993.60ms. Allocated memory is still 176.2MB. Free memory was 137.6MB in the beginning and 109.3MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 07:38:31,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.59ms. Allocated memory is still 176.2MB. Free memory was 109.3MB in the beginning and 106.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:31,948 INFO L158 Benchmark]: Boogie Preprocessor took 82.66ms. Allocated memory is still 176.2MB. Free memory was 106.7MB in the beginning and 105.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:31,948 INFO L158 Benchmark]: RCFGBuilder took 601.56ms. Allocated memory is still 176.2MB. Free memory was 104.6MB in the beginning and 87.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:38:31,949 INFO L158 Benchmark]: TraceAbstraction took 9263.62ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 87.3MB in the beginning and 101.0MB in the end (delta: -13.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2023-11-19 07:38:31,949 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 216.0MB. Free memory was 101.0MB in the beginning and 99.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:38:31,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 993.60ms. Allocated memory is still 176.2MB. Free memory was 137.6MB in the beginning and 109.3MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.59ms. Allocated memory is still 176.2MB. Free memory was 109.3MB in the beginning and 106.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.66ms. Allocated memory is still 176.2MB. Free memory was 106.7MB in the beginning and 105.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 601.56ms. Allocated memory is still 176.2MB. Free memory was 104.6MB in the beginning and 87.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9263.62ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 87.3MB in the beginning and 101.0MB in the end (delta: -13.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 216.0MB. Free memory was 101.0MB in the beginning and 99.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 104 PlacesBefore, 39 PlacesAfterwards, 104 TransitionsBefore, 36 TransitionsAfterwards, 2460 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 1 ConcurrentYvCompositions, 3 ChoiceCompositions, 76 TotalNumberOfCompositions, 9208 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2123, independent: 1724, independent conditional: 0, independent unconditional: 1724, dependent: 399, dependent conditional: 0, dependent unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1157, independent: 1104, independent conditional: 0, independent unconditional: 1104, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2123, independent: 620, independent conditional: 0, independent unconditional: 620, dependent: 346, dependent conditional: 0, dependent unconditional: 346, unknown: 1157, unknown conditional: 0, unknown unconditional: 1157] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 944]: Data race detected [2023-11-19 07:38:31,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:38:31,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-19 07:38:31,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated [2023-11-19 07:38:31,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post34 could not be translated [2023-11-19 07:38:31,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:31,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:31,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:38:32,005 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-19 07:38:32,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated [2023-11-19 07:38:32,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:32,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:32,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:32,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:32,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:32,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:32,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:32,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:32,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post34 could not be translated [2023-11-19 07:38:32,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 07:38:32,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:38:32,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated Data race detected The following path leads to a data race: [L922-L925] 0 struct s { int datum; pthread_mutex_t mutex; } a[10]; [L937] 0 int i = 0; VAL [a={1:0}, i=0] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=1] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=2] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=3] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=4] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=5] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=6] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=7] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=8] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=9] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=10] [L937] COND FALSE 0 !(i < 10) [L939] 0 int i = __VERIFIER_nondet_int(); [L940] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L940] RET 0 assume_abort_if_not(0 <= i && i < 10) [L941] 0 pthread_t t1; [L942] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [a={1:0}, i=1, t1={2:0}] [L927] 1 int i = __VERIFIER_nondet_int(); [L928] CALL 1 assume_abort_if_not(0 <= i && i < 9) [L11] COND FALSE 1 !(!cond) [L928] RET 1 assume_abort_if_not(0 <= i && i < 9) [L929] 1 struct s *p = &a[i]; [L931] 1 i++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=0, p={1:0}] [L931] 1 i++ [L932] EXPR 1 a[i].datum VAL [a={1:0}, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] EXPR 0 a[i].datum VAL [a={1:0}, i=1, t1={2:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1={2:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1={2:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1={2:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1={2:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1={2:0}] Now there is a data race (on the heap) between C: a[i].datum++ [932] and C: a[i].datum++ [944] - UnprovableResult [Line: 944]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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, 144 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: 9.0s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 596 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 406 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1582 IncrementalHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 4 mSDtfsCounter, 1582 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1437occurred in iteration=7, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 130/163 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! [2023-11-19 07:38:32,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dade9e-70ce-4645-9978-8c58ef7a1125/bin/uautomizer-verify-uCwYo4JHxu/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