./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:43:40,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:43:40,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:43:40,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:43:40,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:43:40,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:43:40,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:43:40,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:43:40,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:43:40,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:43:40,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:43:40,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:43:40,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:43:40,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:43:40,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:43:40,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:43:40,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:43:40,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:43:40,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:43:40,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:43:40,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:43:40,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:43:40,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:43:40,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:43:40,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:43:40,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:43:40,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:43:40,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:43:40,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:43:40,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:43:40,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:43:40,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:43:40,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:43:40,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:43:40,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:43:40,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:43:40,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:43:40,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:43:40,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:43:40,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:43:40,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:43:40,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 14:43:41,003 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:43:41,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:43:41,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:43:41,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:43:41,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:43:41,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:43:41,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:43:41,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:43:41,006 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:43:41,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:43:41,006 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:43:41,007 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:43:41,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:43:41,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:43:41,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:43:41,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:43:41,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:43:41,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:43:41,008 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 14:43:41,008 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:43:41,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:43:41,008 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:43:41,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:43:41,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:43:41,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:43:41,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:43:41,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:43:41,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:43:41,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:43:41,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:43:41,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:43:41,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:43:41,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:43:41,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:43:41,011 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:43:41,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:43:41,011 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:43:41,011 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2022-12-13 14:43:41,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:43:41,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:43:41,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:43:41,224 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:43:41,224 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:43:41,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2022-12-13 14:43:43,824 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:43:43,990 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:43:43,991 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2022-12-13 14:43:44,000 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/data/dd836ba1c/dea6e514496d497f8bf64caedb5fd313/FLAG92ed02878 [2022-12-13 14:43:44,011 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/data/dd836ba1c/dea6e514496d497f8bf64caedb5fd313 [2022-12-13 14:43:44,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:43:44,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:43:44,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:43:44,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:43:44,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:43:44,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e2e9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44, skipping insertion in model container [2022-12-13 14:43:44,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:43:44,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:43:44,382 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2022-12-13 14:43:44,395 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 14:43:44,395 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 14:43:44,396 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 14:43:44,397 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 14:43:44,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:43:44,428 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:43:44,453 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2022-12-13 14:43:44,456 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 14:43:44,457 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 14:43:44,457 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 14:43:44,458 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 14:43:44,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:43:44,506 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:43:44,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44 WrapperNode [2022-12-13 14:43:44,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:43:44,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:43:44,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:43:44,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:43:44,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,557 INFO L138 Inliner]: procedures = 279, calls = 51, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 345 [2022-12-13 14:43:44,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:43:44,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:43:44,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:43:44,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:43:44,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:43:44,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:43:44,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:43:44,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:43:44,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (1/1) ... [2022-12-13 14:43:44,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:43:44,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:43:44,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:43:44,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:43:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:43:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 14:43:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 14:43:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:43:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:43:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:43:44,669 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 14:43:44,791 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:43:44,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:43:45,230 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:43:45,237 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:43:45,237 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-12-13 14:43:45,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:43:45 BoogieIcfgContainer [2022-12-13 14:43:45,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:43:45,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:43:45,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:43:45,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:43:45,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:43:44" (1/3) ... [2022-12-13 14:43:45,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f121dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:43:45, skipping insertion in model container [2022-12-13 14:43:45,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:43:44" (2/3) ... [2022-12-13 14:43:45,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f121dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:43:45, skipping insertion in model container [2022-12-13 14:43:45,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:43:45" (3/3) ... [2022-12-13 14:43:45,245 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2022-12-13 14:43:45,251 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:43:45,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:43:45,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-12-13 14:43:45,259 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:43:45,318 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 14:43:45,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 397 transitions, 802 flow [2022-12-13 14:43:45,467 INFO L130 PetriNetUnfolder]: 29/420 cut-off events. [2022-12-13 14:43:45,467 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-12-13 14:43:45,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 420 events. 29/420 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1046 event pairs, 0 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 251. Up to 4 conditions per place. [2022-12-13 14:43:45,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 373 places, 397 transitions, 802 flow [2022-12-13 14:43:45,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 397 transitions, 802 flow [2022-12-13 14:43:45,481 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:43:45,489 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 397 transitions, 802 flow [2022-12-13 14:43:45,491 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 397 transitions, 802 flow [2022-12-13 14:43:45,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 397 transitions, 802 flow [2022-12-13 14:43:45,539 INFO L130 PetriNetUnfolder]: 29/420 cut-off events. [2022-12-13 14:43:45,540 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-12-13 14:43:45,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 420 events. 29/420 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1046 event pairs, 0 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 251. Up to 4 conditions per place. [2022-12-13 14:43:45,544 INFO L119 LiptonReduction]: Number of co-enabled transitions 7772 [2022-12-13 14:44:35,170 WARN L233 SmtUtils]: Spent 20.64s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:44:50,899 WARN L233 SmtUtils]: Spent 15.73s on a formula simplification that was a NOOP. DAG size: 155 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:45:09,712 WARN L233 SmtUtils]: Spent 18.81s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:45:26,475 WARN L233 SmtUtils]: Spent 16.76s on a formula simplification that was a NOOP. DAG size: 155 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:46:23,724 WARN L233 SmtUtils]: Spent 56.41s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:47:17,165 WARN L233 SmtUtils]: Spent 53.44s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:48:18,425 WARN L233 SmtUtils]: Spent 1.02m on a formula simplification that was a NOOP. DAG size: 210 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:49:02,719 WARN L233 SmtUtils]: Spent 44.29s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:51:27,415 WARN L233 SmtUtils]: Spent 2.40m on a formula simplification that was a NOOP. DAG size: 266 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:53:52,115 WARN L233 SmtUtils]: Spent 2.41m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:56:33,722 WARN L233 SmtUtils]: Spent 2.69m on a formula simplification that was a NOOP. DAG size: 266 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:58:44,184 WARN L233 SmtUtils]: Spent 2.17m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:58:44,190 INFO L134 LiptonReduction]: Checked pairs total: 29103 [2022-12-13 14:58:44,190 INFO L136 LiptonReduction]: Total number of compositions: 392 [2022-12-13 14:58:44,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:58:44,206 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7547d127, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:58:44,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-12-13 14:58:44,207 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 14:58:44,207 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:58:44,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:58:44,208 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 14:58:44,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 14:58:44,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:44,212 INFO L85 PathProgramCache]: Analyzing trace with hash 46304, now seen corresponding path program 1 times [2022-12-13 14:58:44,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:44,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263631398] [2022-12-13 14:58:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:44,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:58:44,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:58:44,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263631398] [2022-12-13 14:58:44,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263631398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:58:44,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:58:44,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:58:44,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955643382] [2022-12-13 14:58:44,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:58:44,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:58:44,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:58:44,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:58:44,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:58:44,372 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 789 [2022-12-13 14:58:44,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 99 transitions, 206 flow. Second operand has 2 states, 2 states have (on average 375.0) internal successors, (750), 2 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:44,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:58:44,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 789 [2022-12-13 14:58:44,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:58:46,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:58:46,539 INFO L130 PetriNetUnfolder]: 106/457 cut-off events. [2022-12-13 14:58:46,540 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-12-13 14:58:46,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 457 events. 106/457 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2087 event pairs, 85 based on Foata normal form. 30/421 useless extension candidates. Maximal degree in co-relation 642. Up to 217 conditions per place. [2022-12-13 14:58:46,542 INFO L137 encePairwiseOnDemand]: 767/789 looper letters, 32 selfloop transitions, 0 changer transitions 0/77 dead transitions. [2022-12-13 14:58:46,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 77 transitions, 226 flow [2022-12-13 14:58:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:58:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 14:58:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 802 transitions. [2022-12-13 14:58:46,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5082382762991128 [2022-12-13 14:58:46,555 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 802 transitions. [2022-12-13 14:58:46,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 802 transitions. [2022-12-13 14:58:46,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:58:46,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 802 transitions. [2022-12-13 14:58:46,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 401.0) internal successors, (802), 2 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:46,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 789.0) internal successors, (2367), 3 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:46,568 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 789.0) internal successors, (2367), 3 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:46,570 INFO L175 Difference]: Start difference. First operand has 86 places, 99 transitions, 206 flow. Second operand 2 states and 802 transitions. [2022-12-13 14:58:46,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 77 transitions, 226 flow [2022-12-13 14:58:46,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 77 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:58:46,574 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 162 flow [2022-12-13 14:58:46,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=789, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=162, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2022-12-13 14:58:46,577 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, -11 predicate places. [2022-12-13 14:58:46,578 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 162 flow [2022-12-13 14:58:46,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 375.0) internal successors, (750), 2 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:46,578 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:58:46,578 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2022-12-13 14:58:46,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:58:46,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 14:58:46,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:46,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1205469717, now seen corresponding path program 1 times [2022-12-13 14:58:46,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:46,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185356191] [2022-12-13 14:58:46,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:46,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:58:46,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:58:46,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185356191] [2022-12-13 14:58:46,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185356191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:58:46,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:58:46,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:58:46,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344263783] [2022-12-13 14:58:46,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:58:46,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:58:46,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:58:46,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:58:46,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:58:46,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 789 [2022-12-13 14:58:46,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:46,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:58:46,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 789 [2022-12-13 14:58:46,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:58:48,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:58:49,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:58:49,605 INFO L130 PetriNetUnfolder]: 107/460 cut-off events. [2022-12-13 14:58:49,606 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-12-13 14:58:49,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 460 events. 107/460 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2084 event pairs, 85 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 683. Up to 217 conditions per place. [2022-12-13 14:58:49,608 INFO L137 encePairwiseOnDemand]: 786/789 looper letters, 33 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2022-12-13 14:58:49,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 80 transitions, 238 flow [2022-12-13 14:58:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:58:49,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:58:49,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1146 transitions. [2022-12-13 14:58:49,612 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4841571609632446 [2022-12-13 14:58:49,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1146 transitions. [2022-12-13 14:58:49,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1146 transitions. [2022-12-13 14:58:49,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:58:49,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1146 transitions. [2022-12-13 14:58:49,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:49,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 789.0) internal successors, (3156), 4 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:49,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 789.0) internal successors, (3156), 4 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:49,620 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 162 flow. Second operand 3 states and 1146 transitions. [2022-12-13 14:58:49,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 80 transitions, 238 flow [2022-12-13 14:58:49,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 80 transitions, 238 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:58:49,622 INFO L231 Difference]: Finished difference. Result has 78 places, 78 transitions, 174 flow [2022-12-13 14:58:49,622 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=789, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=78, PETRI_TRANSITIONS=78} [2022-12-13 14:58:49,623 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, -8 predicate places. [2022-12-13 14:58:49,623 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 78 transitions, 174 flow [2022-12-13 14:58:49,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:49,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:58:49,624 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:49,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:58:49,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 14:58:49,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1455454395, now seen corresponding path program 1 times [2022-12-13 14:58:49,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:49,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281077714] [2022-12-13 14:58:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:49,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:49,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:58:49,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:58:49,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281077714] [2022-12-13 14:58:49,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281077714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:58:49,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:58:49,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:58:49,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324514774] [2022-12-13 14:58:49,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:58:49,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:58:49,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:58:49,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:58:49,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:58:49,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 789 [2022-12-13 14:58:49,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 78 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:49,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:58:49,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 789 [2022-12-13 14:58:49,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:58:51,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:58:51,908 INFO L130 PetriNetUnfolder]: 107/462 cut-off events. [2022-12-13 14:58:51,908 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-12-13 14:58:51,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 462 events. 107/462 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2090 event pairs, 85 based on Foata normal form. 2/400 useless extension candidates. Maximal degree in co-relation 692. Up to 220 conditions per place. [2022-12-13 14:58:51,909 INFO L137 encePairwiseOnDemand]: 786/789 looper letters, 32 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-12-13 14:58:51,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 244 flow [2022-12-13 14:58:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:58:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:58:51,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1144 transitions. [2022-12-13 14:58:51,912 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.483312209547951 [2022-12-13 14:58:51,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1144 transitions. [2022-12-13 14:58:51,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1144 transitions. [2022-12-13 14:58:51,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:58:51,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1144 transitions. [2022-12-13 14:58:51,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:51,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 789.0) internal successors, (3156), 4 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:51,918 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 789.0) internal successors, (3156), 4 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:51,918 INFO L175 Difference]: Start difference. First operand has 78 places, 78 transitions, 174 flow. Second operand 3 states and 1144 transitions. [2022-12-13 14:58:51,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 244 flow [2022-12-13 14:58:51,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 79 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:58:51,920 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 186 flow [2022-12-13 14:58:51,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=789, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2022-12-13 14:58:51,920 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, -6 predicate places. [2022-12-13 14:58:51,920 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 186 flow [2022-12-13 14:58:51,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:51,921 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:58:51,921 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:51,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:58:51,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 14:58:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1230217926, now seen corresponding path program 1 times [2022-12-13 14:58:51,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:51,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409931076] [2022-12-13 14:58:51,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:51,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:51,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:58:51,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064703476] [2022-12-13 14:58:51,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:51,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:58:51,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:58:51,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:58:51,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:58:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:52,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:58:52,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:58:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:58:52,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:58:52,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:58:52,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:58:52,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409931076] [2022-12-13 14:58:52,295 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:58:52,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064703476] [2022-12-13 14:58:52,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064703476] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:58:52,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:58:52,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-12-13 14:58:52,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851102341] [2022-12-13 14:58:52,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:58:52,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:58:52,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:58:52,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:58:52,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:58:52,320 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 789 [2022-12-13 14:58:52,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:52,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:58:52,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 789 [2022-12-13 14:58:52,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:58:54,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:58:56,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:58:58,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:59:00,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:59:02,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:59:03,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:59:03,383 INFO L130 PetriNetUnfolder]: 107/468 cut-off events. [2022-12-13 14:59:03,383 INFO L131 PetriNetUnfolder]: For 4/7 co-relation queries the response was YES. [2022-12-13 14:59:03,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 468 events. 107/468 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2096 event pairs, 85 based on Foata normal form. 6/410 useless extension candidates. Maximal degree in co-relation 719. Up to 220 conditions per place. [2022-12-13 14:59:03,385 INFO L137 encePairwiseOnDemand]: 786/789 looper letters, 32 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2022-12-13 14:59:03,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 272 flow [2022-12-13 14:59:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:59:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:59:03,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2253 transitions. [2022-12-13 14:59:03,393 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4759188846641318 [2022-12-13 14:59:03,393 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2253 transitions. [2022-12-13 14:59:03,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2253 transitions. [2022-12-13 14:59:03,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:59:03,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2253 transitions. [2022-12-13 14:59:03,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 375.5) internal successors, (2253), 6 states have internal predecessors, (2253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:03,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 789.0) internal successors, (5523), 7 states have internal predecessors, (5523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:03,421 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 789.0) internal successors, (5523), 7 states have internal predecessors, (5523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:03,421 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 186 flow. Second operand 6 states and 2253 transitions. [2022-12-13 14:59:03,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 272 flow [2022-12-13 14:59:03,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 82 transitions, 268 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 14:59:03,423 INFO L231 Difference]: Finished difference. Result has 87 places, 82 transitions, 224 flow [2022-12-13 14:59:03,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=789, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2022-12-13 14:59:03,424 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 1 predicate places. [2022-12-13 14:59:03,424 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 224 flow [2022-12-13 14:59:03,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:03,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:59:03,426 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:59:03,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:59:03,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:03,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 14:59:03,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:03,629 INFO L85 PathProgramCache]: Analyzing trace with hash -146791557, now seen corresponding path program 2 times [2022-12-13 14:59:03,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:03,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996121051] [2022-12-13 14:59:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:03,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:03,813 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:59:03,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877806878] [2022-12-13 14:59:03,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:59:03,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:03,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:03,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:03,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66eb2c1f-9d8b-41cd-a055-6560fdeffcd8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:59:04,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:59:04,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:59:04,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 3951 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:59:04,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:04,703 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:59:04,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:59:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:59:04,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:04,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996121051] [2022-12-13 14:59:04,766 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:59:04,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877806878] [2022-12-13 14:59:04,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877806878] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:59:04,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:59:04,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-12-13 14:59:04,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577496043] [2022-12-13 14:59:04,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:59:04,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:59:04,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:04,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:59:04,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:59:04,807 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 789 [2022-12-13 14:59:04,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 224 flow. Second operand has 12 states, 12 states have (on average 370.4166666666667) internal successors, (4445), 12 states have internal predecessors, (4445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:59:04,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:59:04,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 789 [2022-12-13 14:59:04,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:59:06,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 14:59:09,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []