./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G --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 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:02:55,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:02:55,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:02:55,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:02:55,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:02:55,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:02:55,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:02:55,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:02:55,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:02:55,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:02:55,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:02:55,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:02:55,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:02:55,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:02:55,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:02:55,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:02:55,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:02:55,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:02:55,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:02:55,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:02:55,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:02:55,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:02:55,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:02:55,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:02:55,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:02:55,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:02:55,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:02:55,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:02:55,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:02:55,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:02:55,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:02:55,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:02:55,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:02:55,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:02:55,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:02:55,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:02:55,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:02:55,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:02:55,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:02:55,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:02:55,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:02:55,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-23 14:02:55,722 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:02:55,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:02:55,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:02:55,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:02:55,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:02:55,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:02:55,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:02:55,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:02:55,730 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:02:55,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:02:55,732 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:02:55,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:02:55,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:02:55,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:02:55,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:02:55,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:02:55,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:02:55,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:02:55,736 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-23 14:02:55,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:02:55,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:02:55,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:02:55,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:02:55,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:02:55,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:02:55,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:02:55,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:02:55,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:02:55,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:02:55,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:02:55,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:02:55,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:02:55,744 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:02:55,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:02:55,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:02:55,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:02:55,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 [2021-11-23 14:02:56,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:02:56,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:02:56,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:02:56,243 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:02:56,244 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:02:56,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2021-11-23 14:02:56,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/data/bc0e6cae4/75da4a7e348246e0bceca3ba3a4cde4d/FLAG30f25c461 [2021-11-23 14:02:57,094 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:02:57,099 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2021-11-23 14:02:57,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/data/bc0e6cae4/75da4a7e348246e0bceca3ba3a4cde4d/FLAG30f25c461 [2021-11-23 14:02:57,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/data/bc0e6cae4/75da4a7e348246e0bceca3ba3a4cde4d [2021-11-23 14:02:57,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:02:57,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:02:57,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:02:57,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:02:57,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:02:57,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:57" (1/1) ... [2021-11-23 14:02:57,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565ecd0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:57, skipping insertion in model container [2021-11-23 14:02:57,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:57" (1/1) ... [2021-11-23 14:02:57,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:02:57,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:02:57,679 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 14:02:57,932 WARN L230 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_5565eaa5-db40-4f43-9409-970da0fde36b/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2021-11-23 14:02:57,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:02:57,950 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:02:57,971 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 14:02:58,007 WARN L230 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_5565eaa5-db40-4f43-9409-970da0fde36b/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2021-11-23 14:02:58,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:02:58,080 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:02:58,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58 WrapperNode [2021-11-23 14:02:58,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:02:58,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:02:58,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:02:58,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:02:58,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,183 INFO L137 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2021-11-23 14:02:58,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:02:58,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:02:58,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:02:58,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:02:58,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:02:58,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:02:58,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:02:58,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:02:58,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (1/1) ... [2021-11-23 14:02:58,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:02:58,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:02:58,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:02:58,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:02:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 14:02:58,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 14:02:58,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:02:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 14:02:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:02:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:02:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:02:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:02:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 14:02:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:02:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:02:58,367 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:02:58,550 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:02:58,553 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:02:58,851 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:02:58,982 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:02:58,982 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 14:02:58,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:58 BoogieIcfgContainer [2021-11-23 14:02:58,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:02:58,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:02:59,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:02:59,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:02:59,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:02:57" (1/3) ... [2021-11-23 14:02:59,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8e1a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:59, skipping insertion in model container [2021-11-23 14:02:59,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:58" (2/3) ... [2021-11-23 14:02:59,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8e1a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:59, skipping insertion in model container [2021-11-23 14:02:59,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:58" (3/3) ... [2021-11-23 14:02:59,014 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-11-23 14:02:59,025 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:02:59,034 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:02:59,035 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-23 14:02:59,035 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:02:59,107 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,107 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,108 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,108 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,111 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,114 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,115 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,116 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,123 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:02:59,151 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:02:59,246 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:02:59,264 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:02:59,264 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-23 14:02:59,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 153 flow [2021-11-23 14:02:59,420 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-11-23 14:02:59,420 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 14:02:59,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 71 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2021-11-23 14:02:59,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 153 flow [2021-11-23 14:02:59,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 73 transitions, 149 flow [2021-11-23 14:02:59,473 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-11-23 14:02:59,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 14:02:59,474 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:02:59,475 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:02:59,476 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2021-11-23 14:02:59,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:02:59,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1769976180, now seen corresponding path program 1 times [2021-11-23 14:02:59,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:02:59,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330940912] [2021-11-23 14:02:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:02:59,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:02:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:02:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:02:59,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:02:59,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330940912] [2021-11-23 14:02:59,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330940912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:02:59,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:02:59,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 14:02:59,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123878707] [2021-11-23 14:02:59,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:02:59,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:02:59,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:02:59,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:02:59,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:02:59,892 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 74 [2021-11-23 14:02:59,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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) [2021-11-23 14:02:59,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:02:59,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 74 [2021-11-23 14:02:59,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:03:00,029 INFO L129 PetriNetUnfolder]: 14/118 cut-off events. [2021-11-23 14:03:00,029 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 14:03:00,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 118 events. 14/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 287 event pairs, 14 based on Foata normal form. 3/111 useless extension candidates. Maximal degree in co-relation 134. Up to 39 conditions per place. [2021-11-23 14:03:00,032 INFO L132 encePairwiseOnDemand]: 60/74 looper letters, 9 selfloop transitions, 0 changer transitions 3/58 dead transitions. [2021-11-23 14:03:00,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 58 transitions, 139 flow [2021-11-23 14:03:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:03:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-23 14:03:00,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 122 transitions. [2021-11-23 14:03:00,050 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2021-11-23 14:03:00,051 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 122 transitions. [2021-11-23 14:03:00,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 122 transitions. [2021-11-23 14:03:00,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:03:00,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 122 transitions. [2021-11-23 14:03:00,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 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) [2021-11-23 14:03:00,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2021-11-23 14:03:00,092 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2021-11-23 14:03:00,095 INFO L186 Difference]: Start difference. First operand has 76 places, 73 transitions, 149 flow. Second operand 2 states and 122 transitions. [2021-11-23 14:03:00,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 58 transitions, 139 flow [2021-11-23 14:03:00,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-23 14:03:00,111 INFO L242 Difference]: Finished difference. Result has 62 places, 55 transitions, 112 flow [2021-11-23 14:03:00,114 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=112, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2021-11-23 14:03:00,123 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, -14 predicate places. [2021-11-23 14:03:00,124 INFO L470 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 112 flow [2021-11-23 14:03:00,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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) [2021-11-23 14:03:00,125 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:03:00,125 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:03:00,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:03:00,126 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2021-11-23 14:03:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:03:00,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1465084408, now seen corresponding path program 1 times [2021-11-23 14:03:00,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:03:00,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690840409] [2021-11-23 14:03:00,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:03:00,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:03:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:03:00,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:03:00,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:03:00,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690840409] [2021-11-23 14:03:00,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690840409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:03:00,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:03:00,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:03:00,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842085481] [2021-11-23 14:03:00,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:03:00,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:03:00,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:03:00,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:03:00,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:03:00,264 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 74 [2021-11-23 14:03:00,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-11-23 14:03:00,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:03:00,265 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 74 [2021-11-23 14:03:00,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:03:00,379 INFO L129 PetriNetUnfolder]: 50/228 cut-off events. [2021-11-23 14:03:00,379 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 14:03:00,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 228 events. 50/228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 845 event pairs, 25 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 346. Up to 85 conditions per place. [2021-11-23 14:03:00,383 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 14 selfloop transitions, 3 changer transitions 6/64 dead transitions. [2021-11-23 14:03:00,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 64 transitions, 176 flow [2021-11-23 14:03:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:03:00,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-23 14:03:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2021-11-23 14:03:00,387 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7027027027027027 [2021-11-23 14:03:00,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 156 transitions. [2021-11-23 14:03:00,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 156 transitions. [2021-11-23 14:03:00,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:03:00,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 156 transitions. [2021-11-23 14:03:00,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-11-23 14:03:00,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-23 14:03:00,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-23 14:03:00,395 INFO L186 Difference]: Start difference. First operand has 62 places, 55 transitions, 112 flow. Second operand 3 states and 156 transitions. [2021-11-23 14:03:00,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 64 transitions, 176 flow [2021-11-23 14:03:00,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-23 14:03:00,400 INFO L242 Difference]: Finished difference. Result has 62 places, 55 transitions, 127 flow [2021-11-23 14:03:00,400 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2021-11-23 14:03:00,402 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, -14 predicate places. [2021-11-23 14:03:00,402 INFO L470 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 127 flow [2021-11-23 14:03:00,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-11-23 14:03:00,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:03:00,403 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:03:00,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:03:00,404 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2021-11-23 14:03:00,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:03:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash -344643714, now seen corresponding path program 1 times [2021-11-23 14:03:00,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:03:00,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218627407] [2021-11-23 14:03:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:03:00,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:03:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:03:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:03:00,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:03:00,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218627407] [2021-11-23 14:03:00,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218627407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:03:00,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:03:00,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:03:00,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019722825] [2021-11-23 14:03:00,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:03:00,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:03:00,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:03:00,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:03:00,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:03:00,558 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2021-11-23 14:03:00,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2021-11-23 14:03:00,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:03:00,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2021-11-23 14:03:00,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:03:00,662 INFO L129 PetriNetUnfolder]: 2/99 cut-off events. [2021-11-23 14:03:00,662 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2021-11-23 14:03:00,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 99 events. 2/99 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 191 event pairs, 0 based on Foata normal form. 6/100 useless extension candidates. Maximal degree in co-relation 143. Up to 19 conditions per place. [2021-11-23 14:03:00,663 INFO L132 encePairwiseOnDemand]: 70/74 looper letters, 9 selfloop transitions, 3 changer transitions 1/56 dead transitions. [2021-11-23 14:03:00,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 155 flow [2021-11-23 14:03:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:03:00,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-23 14:03:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 204 transitions. [2021-11-23 14:03:00,676 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6891891891891891 [2021-11-23 14:03:00,676 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 204 transitions. [2021-11-23 14:03:00,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 204 transitions. [2021-11-23 14:03:00,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:03:00,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 204 transitions. [2021-11-23 14:03:00,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 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) [2021-11-23 14:03:00,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 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) [2021-11-23 14:03:00,682 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 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) [2021-11-23 14:03:00,682 INFO L186 Difference]: Start difference. First operand has 62 places, 55 transitions, 127 flow. Second operand 4 states and 204 transitions. [2021-11-23 14:03:00,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 155 flow [2021-11-23 14:03:00,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-23 14:03:00,686 INFO L242 Difference]: Finished difference. Result has 64 places, 55 transitions, 138 flow [2021-11-23 14:03:00,686 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2021-11-23 14:03:00,692 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, -12 predicate places. [2021-11-23 14:03:00,693 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 138 flow [2021-11-23 14:03:00,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2021-11-23 14:03:00,693 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:03:00,694 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:03:00,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:03:00,694 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2021-11-23 14:03:00,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:03:00,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1091457494, now seen corresponding path program 2 times [2021-11-23 14:03:00,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:03:00,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702608793] [2021-11-23 14:03:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:03:00,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:03:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:03:00,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:03:00,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:03:00,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702608793] [2021-11-23 14:03:00,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702608793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:03:00,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:03:00,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:03:00,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033321859] [2021-11-23 14:03:00,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:03:00,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:03:00,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:03:00,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:03:00,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:03:00,850 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2021-11-23 14:03:00,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2021-11-23 14:03:00,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:03:00,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2021-11-23 14:03:00,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:03:00,912 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-11-23 14:03:00,913 INFO L130 PetriNetUnfolder]: For 10/12 co-relation queries the response was YES. [2021-11-23 14:03:00,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 52 events. 0/52 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-11-23 14:03:00,913 INFO L132 encePairwiseOnDemand]: 72/74 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2021-11-23 14:03:00,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 146 flow [2021-11-23 14:03:00,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:03:00,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-23 14:03:00,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2021-11-23 14:03:00,918 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6981981981981982 [2021-11-23 14:03:00,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 155 transitions. [2021-11-23 14:03:00,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 155 transitions. [2021-11-23 14:03:00,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:03:00,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 155 transitions. [2021-11-23 14:03:00,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2021-11-23 14:03:00,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-23 14:03:00,922 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-23 14:03:00,922 INFO L186 Difference]: Start difference. First operand has 64 places, 55 transitions, 138 flow. Second operand 3 states and 155 transitions. [2021-11-23 14:03:00,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 146 flow [2021-11-23 14:03:00,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 135 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-11-23 14:03:00,925 INFO L242 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2021-11-23 14:03:00,925 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2021-11-23 14:03:00,927 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, -15 predicate places. [2021-11-23 14:03:00,927 INFO L470 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2021-11-23 14:03:00,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2021-11-23 14:03:00,930 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2021-11-23 14:03:00,931 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2021-11-23 14:03:00,931 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2021-11-23 14:03:00,932 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2021-11-23 14:03:00,932 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2021-11-23 14:03:00,932 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2021-11-23 14:03:00,932 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2021-11-23 14:03:00,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2021-11-23 14:03:00,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2021-11-23 14:03:00,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2021-11-23 14:03:00,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2021-11-23 14:03:00,934 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2021-11-23 14:03:00,934 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2021-11-23 14:03:00,934 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2021-11-23 14:03:00,934 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 20 remaining) [2021-11-23 14:03:00,935 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2021-11-23 14:03:00,935 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2021-11-23 14:03:00,935 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2021-11-23 14:03:00,936 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2021-11-23 14:03:00,936 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2021-11-23 14:03:00,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:03:00,941 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-11-23 14:03:00,947 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 14:03:00,947 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 14:03:00,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:03:00 BasicIcfg [2021-11-23 14:03:00,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 14:03:00,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:03:00,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:03:00,954 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:03:00,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:58" (3/4) ... [2021-11-23 14:03:00,958 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 14:03:00,964 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2021-11-23 14:03:00,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2021-11-23 14:03:00,974 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-11-23 14:03:00,974 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 14:03:00,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 14:03:01,029 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 14:03:01,029 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:03:01,030 INFO L158 Benchmark]: Toolchain (without parser) took 3694.52ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 48.2MB in the beginning and 58.7MB in the end (delta: -10.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-23 14:03:01,030 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 86.0MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:03:01,031 INFO L158 Benchmark]: CACSL2BoogieTranslator took 740.36ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.9MB in the beginning and 70.8MB in the end (delta: -22.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 14:03:01,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.83ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 68.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:03:01,032 INFO L158 Benchmark]: Boogie Preprocessor took 44.27ms. Allocated memory is still 104.9MB. Free memory was 68.9MB in the beginning and 67.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:03:01,033 INFO L158 Benchmark]: RCFGBuilder took 755.95ms. Allocated memory is still 104.9MB. Free memory was 67.2MB in the beginning and 50.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 14:03:01,033 INFO L158 Benchmark]: TraceAbstraction took 1963.68ms. Allocated memory is still 104.9MB. Free memory was 49.5MB in the beginning and 62.2MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:03:01,034 INFO L158 Benchmark]: Witness Printer took 75.50ms. Allocated memory is still 104.9MB. Free memory was 62.2MB in the beginning and 58.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:03:01,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 86.0MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 740.36ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.9MB in the beginning and 70.8MB in the end (delta: -22.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.83ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 68.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.27ms. Allocated memory is still 104.9MB. Free memory was 68.9MB in the beginning and 67.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 755.95ms. Allocated memory is still 104.9MB. Free memory was 67.2MB in the beginning and 50.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1963.68ms. Allocated memory is still 104.9MB. Free memory was 49.5MB in the beginning and 62.2MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.50ms. Allocated memory is still 104.9MB. Free memory was 62.2MB in the beginning and 58.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 20 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-23 14:03:01,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5565eaa5-db40-4f43-9409-970da0fde36b/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE