./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF --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 f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:00:03,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:00:03,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:00:03,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:00:03,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:00:03,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:00:03,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:00:03,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:00:03,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:00:03,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:00:03,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:00:03,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:00:03,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:00:03,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:00:03,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:00:03,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:00:03,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:00:03,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:00:03,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:00:03,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:00:03,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:00:03,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:00:03,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:00:03,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:00:03,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:00:03,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:00:03,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:00:03,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:00:03,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:00:03,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:00:03,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:00:03,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:00:03,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:00:03,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:00:03,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:00:03,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:00:03,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:00:03,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:00:03,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:00:03,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:00:03,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:00:03,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 06:00:03,310 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:00:03,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:00:03,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:00:03,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:00:03,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:00:03,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:00:03,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:00:03,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:00:03,315 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:00:03,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:00:03,317 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:00:03,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:00:03,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:00:03,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:00:03,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:00:03,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:00:03,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:00:03,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:00:03,319 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 06:00:03,319 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:00:03,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:00:03,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:00:03,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:00:03,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:00:03,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:00:03,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:00:03,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:00:03,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:00:03,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:00:03,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:00:03,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:00:03,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:00:03,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:00:03,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:00:03,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:00:03,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:00:03,326 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_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf [2021-11-20 06:00:03,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:00:03,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:00:03,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:00:03,771 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:00:03,772 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:00:03,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i [2021-11-20 06:00:03,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/data/99212650f/b2880a9be2114ea1a41e4461a3a541cb/FLAGc62b9e95c [2021-11-20 06:00:04,597 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:00:04,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i [2021-11-20 06:00:04,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/data/99212650f/b2880a9be2114ea1a41e4461a3a541cb/FLAGc62b9e95c [2021-11-20 06:00:04,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/data/99212650f/b2880a9be2114ea1a41e4461a3a541cb [2021-11-20 06:00:04,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:00:04,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:00:04,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:00:04,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:00:04,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:00:04,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:04" (1/1) ... [2021-11-20 06:00:04,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e98197c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:04, skipping insertion in model container [2021-11-20 06:00:04,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:04" (1/1) ... [2021-11-20 06:00:04,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:00:04,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:00:05,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:00:05,535 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:00:05,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:00:05,640 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:00:05,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05 WrapperNode [2021-11-20 06:00:05,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:00:05,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:00:05,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:00:05,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:00:05,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,698 INFO L137 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 76 [2021-11-20 06:00:05,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:00:05,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:00:05,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:00:05,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:00:05,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:00:05,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:00:05,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:00:05,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:00:05,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (1/1) ... [2021-11-20 06:00:05,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:00:05,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:00:05,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:00:05,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:00:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:00:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:00:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 06:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 06:00:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 06:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:00:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:00:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:00:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:00:05,845 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 06:00:06,045 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:00:06,047 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:00:06,345 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:00:06,354 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:00:06,354 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:00:06,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:06 BoogieIcfgContainer [2021-11-20 06:00:06,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:00:06,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:00:06,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:00:06,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:00:06,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:00:04" (1/3) ... [2021-11-20 06:00:06,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26822982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:00:06, skipping insertion in model container [2021-11-20 06:00:06,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:05" (2/3) ... [2021-11-20 06:00:06,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26822982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:00:06, skipping insertion in model container [2021-11-20 06:00:06,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:06" (3/3) ... [2021-11-20 06:00:06,367 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_12-fldsense_nr.i [2021-11-20 06:00:06,373 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 06:00:06,374 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:00:06,374 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-20 06:00:06,374 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 06:00:06,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,406 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,406 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,407 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,407 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,408 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,408 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,408 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,409 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,410 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,411 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,411 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,411 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,411 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,412 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,412 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,412 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,413 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,413 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,413 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,413 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,414 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,414 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,414 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,415 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,415 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,415 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,416 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,416 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,424 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,425 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:00:06,428 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 06:00:06,482 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:00:06,490 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 [2021-11-20 06:00:06,491 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-20 06:00:06,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 109 transitions, 223 flow [2021-11-20 06:00:06,555 INFO L129 PetriNetUnfolder]: 0/108 cut-off events. [2021-11-20 06:00:06,555 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 06:00:06,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 108 events. 0/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-11-20 06:00:06,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 109 transitions, 223 flow [2021-11-20 06:00:06,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 108 transitions, 219 flow [2021-11-20 06:00:06,577 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-11-20 06:00:06,577 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 06:00:06,577 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:00:06,578 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, 1, 1, 1, 1] [2021-11-20 06:00:06,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 06:00:06,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:00:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash -574025069, now seen corresponding path program 1 times [2021-11-20 06:00:06,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:00:06,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907558590] [2021-11-20 06:00:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:00:06,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:00:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:00:07,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:00:07,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907558590] [2021-11-20 06:00:07,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907558590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:00:07,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:00:07,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:00:07,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662252712] [2021-11-20 06:00:07,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:00:07,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:00:07,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:00:07,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:00:07,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:00:07,081 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 109 [2021-11-20 06:00:07,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 108 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 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) [2021-11-20 06:00:07,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:00:07,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 109 [2021-11-20 06:00:07,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:00:08,360 INFO L129 PetriNetUnfolder]: 653/1932 cut-off events. [2021-11-20 06:00:08,360 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 06:00:08,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 1932 events. 653/1932 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12372 event pairs, 189 based on Foata normal form. 0/1750 useless extension candidates. Maximal degree in co-relation 3285. Up to 681 conditions per place. [2021-11-20 06:00:08,397 INFO L132 encePairwiseOnDemand]: 87/109 looper letters, 170 selfloop transitions, 42 changer transitions 0/274 dead transitions. [2021-11-20 06:00:08,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 274 transitions, 975 flow [2021-11-20 06:00:08,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:00:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 06:00:08,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 592 transitions. [2021-11-20 06:00:08,420 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9051987767584098 [2021-11-20 06:00:08,421 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 592 transitions. [2021-11-20 06:00:08,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 592 transitions. [2021-11-20 06:00:08,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:00:08,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 592 transitions. [2021-11-20 06:00:08,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 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) [2021-11-20 06:00:08,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:08,447 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:08,449 INFO L186 Difference]: Start difference. First operand has 112 places, 108 transitions, 219 flow. Second operand 6 states and 592 transitions. [2021-11-20 06:00:08,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 274 transitions, 975 flow [2021-11-20 06:00:08,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 274 transitions, 974 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 06:00:08,469 INFO L242 Difference]: Finished difference. Result has 121 places, 154 transitions, 534 flow [2021-11-20 06:00:08,472 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=121, PETRI_TRANSITIONS=154} [2021-11-20 06:00:08,478 INFO L334 CegarLoopForPetriNet]: 112 programPoint places, 9 predicate places. [2021-11-20 06:00:08,478 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 154 transitions, 534 flow [2021-11-20 06:00:08,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 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) [2021-11-20 06:00:08,479 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:00:08,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:00:08,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:00:08,480 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 06:00:08,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:00:08,481 INFO L85 PathProgramCache]: Analyzing trace with hash -129693544, now seen corresponding path program 1 times [2021-11-20 06:00:08,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:00:08,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356743759] [2021-11-20 06:00:08,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:00:08,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:00:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:00:08,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:00:08,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356743759] [2021-11-20 06:00:08,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356743759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:00:08,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:00:08,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:00:08,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677185449] [2021-11-20 06:00:08,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:00:08,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:00:08,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:00:08,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:00:08,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:00:08,704 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 109 [2021-11-20 06:00:08,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 154 transitions, 534 flow. Second operand has 6 states, 6 states have (on average 63.833333333333336) internal successors, (383), 6 states have internal predecessors, (383), 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) [2021-11-20 06:00:08,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:00:08,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 109 [2021-11-20 06:00:08,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:00:09,671 INFO L129 PetriNetUnfolder]: 977/2775 cut-off events. [2021-11-20 06:00:09,671 INFO L130 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2021-11-20 06:00:09,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6451 conditions, 2775 events. 977/2775 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 19187 event pairs, 334 based on Foata normal form. 37/2730 useless extension candidates. Maximal degree in co-relation 6407. Up to 1446 conditions per place. [2021-11-20 06:00:09,703 INFO L132 encePairwiseOnDemand]: 92/109 looper letters, 185 selfloop transitions, 53 changer transitions 3/301 dead transitions. [2021-11-20 06:00:09,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 301 transitions, 1504 flow [2021-11-20 06:00:09,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:00:09,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 06:00:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2021-11-20 06:00:09,706 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8363914373088684 [2021-11-20 06:00:09,706 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 547 transitions. [2021-11-20 06:00:09,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 547 transitions. [2021-11-20 06:00:09,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:00:09,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 547 transitions. [2021-11-20 06:00:09,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 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) [2021-11-20 06:00:09,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:09,716 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:09,716 INFO L186 Difference]: Start difference. First operand has 121 places, 154 transitions, 534 flow. Second operand 6 states and 547 transitions. [2021-11-20 06:00:09,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 301 transitions, 1504 flow [2021-11-20 06:00:09,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 301 transitions, 1504 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 06:00:09,745 INFO L242 Difference]: Finished difference. Result has 131 places, 207 transitions, 1050 flow [2021-11-20 06:00:09,745 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1050, PETRI_PLACES=131, PETRI_TRANSITIONS=207} [2021-11-20 06:00:09,746 INFO L334 CegarLoopForPetriNet]: 112 programPoint places, 19 predicate places. [2021-11-20 06:00:09,747 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 207 transitions, 1050 flow [2021-11-20 06:00:09,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.833333333333336) internal successors, (383), 6 states have internal predecessors, (383), 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) [2021-11-20 06:00:09,747 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:00:09,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:00:09,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:00:09,749 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 06:00:09,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:00:09,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2134674886, now seen corresponding path program 1 times [2021-11-20 06:00:09,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:00:09,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275860312] [2021-11-20 06:00:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:00:09,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:00:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:00:09,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:00:09,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275860312] [2021-11-20 06:00:09,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275860312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:00:09,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:00:09,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:00:09,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707261488] [2021-11-20 06:00:09,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:00:09,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:00:09,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:00:09,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:00:09,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:00:09,985 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 109 [2021-11-20 06:00:09,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 207 transitions, 1050 flow. Second operand has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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) [2021-11-20 06:00:09,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:00:09,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 109 [2021-11-20 06:00:09,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:00:10,801 INFO L129 PetriNetUnfolder]: 1040/3015 cut-off events. [2021-11-20 06:00:10,801 INFO L130 PetriNetUnfolder]: For 3302/3305 co-relation queries the response was YES. [2021-11-20 06:00:10,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8473 conditions, 3015 events. 1040/3015 cut-off events. For 3302/3305 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 21448 event pairs, 360 based on Foata normal form. 28/2965 useless extension candidates. Maximal degree in co-relation 8423. Up to 1820 conditions per place. [2021-11-20 06:00:10,835 INFO L132 encePairwiseOnDemand]: 92/109 looper letters, 178 selfloop transitions, 68 changer transitions 0/309 dead transitions. [2021-11-20 06:00:10,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 309 transitions, 2110 flow [2021-11-20 06:00:10,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:00:10,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 06:00:10,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2021-11-20 06:00:10,838 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7431192660550459 [2021-11-20 06:00:10,838 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2021-11-20 06:00:10,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2021-11-20 06:00:10,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:00:10,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2021-11-20 06:00:10,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2021-11-20 06:00:10,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:10,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:10,845 INFO L186 Difference]: Start difference. First operand has 131 places, 207 transitions, 1050 flow. Second operand 6 states and 486 transitions. [2021-11-20 06:00:10,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 309 transitions, 2110 flow [2021-11-20 06:00:10,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 309 transitions, 2102 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-11-20 06:00:10,876 INFO L242 Difference]: Finished difference. Result has 141 places, 268 transitions, 1762 flow [2021-11-20 06:00:10,876 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1762, PETRI_PLACES=141, PETRI_TRANSITIONS=268} [2021-11-20 06:00:10,877 INFO L334 CegarLoopForPetriNet]: 112 programPoint places, 29 predicate places. [2021-11-20 06:00:10,878 INFO L470 AbstractCegarLoop]: Abstraction has has 141 places, 268 transitions, 1762 flow [2021-11-20 06:00:10,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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) [2021-11-20 06:00:10,878 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:00:10,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:00:10,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:00:10,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 06:00:10,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:00:10,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2085217093, now seen corresponding path program 1 times [2021-11-20 06:00:10,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:00:10,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085827389] [2021-11-20 06:00:10,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:00:10,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:00:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:00:10,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:00:10,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085827389] [2021-11-20 06:00:10,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085827389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:00:10,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:00:10,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:00:10,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746480098] [2021-11-20 06:00:10,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:00:10,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:00:10,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:00:10,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:00:10,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:00:10,953 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2021-11-20 06:00:10,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 268 transitions, 1762 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2021-11-20 06:00:10,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:00:10,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2021-11-20 06:00:10,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:00:11,023 INFO L129 PetriNetUnfolder]: 5/200 cut-off events. [2021-11-20 06:00:11,024 INFO L130 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2021-11-20 06:00:11,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 200 events. 5/200 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 388 event pairs, 2 based on Foata normal form. 2/198 useless extension candidates. Maximal degree in co-relation 350. Up to 25 conditions per place. [2021-11-20 06:00:11,025 INFO L132 encePairwiseOnDemand]: 105/109 looper letters, 16 selfloop transitions, 4 changer transitions 8/106 dead transitions. [2021-11-20 06:00:11,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 106 transitions, 390 flow [2021-11-20 06:00:11,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:00:11,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:00:11,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2021-11-20 06:00:11,028 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8899082568807339 [2021-11-20 06:00:11,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2021-11-20 06:00:11,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2021-11-20 06:00:11,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:00:11,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2021-11-20 06:00:11,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2021-11-20 06:00:11,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2021-11-20 06:00:11,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2021-11-20 06:00:11,032 INFO L186 Difference]: Start difference. First operand has 141 places, 268 transitions, 1762 flow. Second operand 3 states and 291 transitions. [2021-11-20 06:00:11,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 106 transitions, 390 flow [2021-11-20 06:00:11,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 106 transitions, 258 flow, removed 26 selfloop flow, removed 30 redundant places. [2021-11-20 06:00:11,038 INFO L242 Difference]: Finished difference. Result has 109 places, 97 transitions, 204 flow [2021-11-20 06:00:11,038 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=109, PETRI_TRANSITIONS=97} [2021-11-20 06:00:11,039 INFO L334 CegarLoopForPetriNet]: 112 programPoint places, -3 predicate places. [2021-11-20 06:00:11,039 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 97 transitions, 204 flow [2021-11-20 06:00:11,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2021-11-20 06:00:11,040 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:00:11,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:00:11,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:00:11,041 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 06:00:11,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:00:11,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1699535008, now seen corresponding path program 1 times [2021-11-20 06:00:11,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:00:11,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540449704] [2021-11-20 06:00:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:00:11,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:00:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:00:11,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:00:11,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540449704] [2021-11-20 06:00:11,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540449704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:00:11,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:00:11,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:00:11,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173661675] [2021-11-20 06:00:11,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:00:11,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:00:11,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:00:11,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:00:11,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:00:11,236 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 109 [2021-11-20 06:00:11,237 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 97 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 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) [2021-11-20 06:00:11,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:00:11,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 109 [2021-11-20 06:00:11,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:00:11,653 INFO L129 PetriNetUnfolder]: 157/510 cut-off events. [2021-11-20 06:00:11,653 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 06:00:11,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 510 events. 157/510 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2006 event pairs, 85 based on Foata normal form. 0/497 useless extension candidates. Maximal degree in co-relation 860. Up to 228 conditions per place. [2021-11-20 06:00:11,657 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 83 selfloop transitions, 5 changer transitions 4/144 dead transitions. [2021-11-20 06:00:11,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 144 transitions, 476 flow [2021-11-20 06:00:11,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:00:11,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 06:00:11,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2021-11-20 06:00:11,660 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7155963302752294 [2021-11-20 06:00:11,660 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2021-11-20 06:00:11,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2021-11-20 06:00:11,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:00:11,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2021-11-20 06:00:11,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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) [2021-11-20 06:00:11,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:11,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:11,665 INFO L186 Difference]: Start difference. First operand has 109 places, 97 transitions, 204 flow. Second operand 6 states and 468 transitions. [2021-11-20 06:00:11,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 144 transitions, 476 flow [2021-11-20 06:00:11,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 144 transitions, 472 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 06:00:11,675 INFO L242 Difference]: Finished difference. Result has 105 places, 92 transitions, 200 flow [2021-11-20 06:00:11,675 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=200, PETRI_PLACES=105, PETRI_TRANSITIONS=92} [2021-11-20 06:00:11,678 INFO L334 CegarLoopForPetriNet]: 112 programPoint places, -7 predicate places. [2021-11-20 06:00:11,679 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 92 transitions, 200 flow [2021-11-20 06:00:11,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 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) [2021-11-20 06:00:11,679 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:00:11,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:00:11,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:00:11,680 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 06:00:11,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:00:11,682 INFO L85 PathProgramCache]: Analyzing trace with hash 964970784, now seen corresponding path program 1 times [2021-11-20 06:00:11,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:00:11,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218335048] [2021-11-20 06:00:11,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:00:11,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:00:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:11,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:00:11,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:00:11,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218335048] [2021-11-20 06:00:11,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218335048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:00:11,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:00:11,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:00:11,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710931119] [2021-11-20 06:00:11,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:00:11,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:00:11,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:00:11,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:00:11,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:00:11,893 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 109 [2021-11-20 06:00:11,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 92 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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) [2021-11-20 06:00:11,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:00:11,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 109 [2021-11-20 06:00:11,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:00:12,195 INFO L129 PetriNetUnfolder]: 145/433 cut-off events. [2021-11-20 06:00:12,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 06:00:12,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 861 conditions, 433 events. 145/433 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1525 event pairs, 97 based on Foata normal form. 13/446 useless extension candidates. Maximal degree in co-relation 819. Up to 254 conditions per place. [2021-11-20 06:00:12,197 INFO L132 encePairwiseOnDemand]: 104/109 looper letters, 0 selfloop transitions, 0 changer transitions 139/139 dead transitions. [2021-11-20 06:00:12,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 139 transitions, 472 flow [2021-11-20 06:00:12,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:00:12,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 06:00:12,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 450 transitions. [2021-11-20 06:00:12,201 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6880733944954128 [2021-11-20 06:00:12,201 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 450 transitions. [2021-11-20 06:00:12,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 450 transitions. [2021-11-20 06:00:12,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:00:12,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 450 transitions. [2021-11-20 06:00:12,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2021-11-20 06:00:12,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:12,206 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-11-20 06:00:12,206 INFO L186 Difference]: Start difference. First operand has 105 places, 92 transitions, 200 flow. Second operand 6 states and 450 transitions. [2021-11-20 06:00:12,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 139 transitions, 472 flow [2021-11-20 06:00:12,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 139 transitions, 462 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-20 06:00:12,210 INFO L242 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2021-11-20 06:00:12,210 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2021-11-20 06:00:12,214 INFO L334 CegarLoopForPetriNet]: 112 programPoint places, -12 predicate places. [2021-11-20 06:00:12,214 INFO L470 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2021-11-20 06:00:12,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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) [2021-11-20 06:00:12,217 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2021-11-20 06:00:12,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2021-11-20 06:00:12,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2021-11-20 06:00:12,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2021-11-20 06:00:12,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 9 remaining) [2021-11-20 06:00:12,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2021-11-20 06:00:12,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2021-11-20 06:00:12,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2021-11-20 06:00:12,224 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2021-11-20 06:00:12,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:00:12,236 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 06:00:12,241 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 06:00:12,241 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:00:12,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:00:12 BasicIcfg [2021-11-20 06:00:12,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:00:12,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:00:12,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:00:12,250 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:00:12,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:06" (3/4) ... [2021-11-20 06:00:12,253 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:00:12,259 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-20 06:00:12,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-20 06:00:12,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-20 06:00:12,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:00:12,339 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:00:12,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:00:12,340 INFO L158 Benchmark]: Toolchain (without parser) took 7525.99ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 86.9MB in the beginning and 115.1MB in the end (delta: -28.2MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2021-11-20 06:00:12,340 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 81.8MB. Free memory was 52.7MB in the beginning and 52.6MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:00:12,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 819.13ms. Allocated memory is still 123.7MB. Free memory was 86.9MB in the beginning and 90.9MB in the end (delta: -3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:00:12,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.75ms. Allocated memory is still 123.7MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:00:12,342 INFO L158 Benchmark]: Boogie Preprocessor took 32.78ms. Allocated memory is still 123.7MB. Free memory was 88.0MB in the beginning and 86.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:00:12,342 INFO L158 Benchmark]: RCFGBuilder took 624.10ms. Allocated memory is still 123.7MB. Free memory was 86.7MB in the beginning and 72.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 06:00:12,342 INFO L158 Benchmark]: TraceAbstraction took 5886.45ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 72.0MB in the beginning and 118.3MB in the end (delta: -46.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-20 06:00:12,343 INFO L158 Benchmark]: Witness Printer took 89.77ms. Allocated memory is still 199.2MB. Free memory was 118.3MB in the beginning and 115.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:00:12,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 81.8MB. Free memory was 52.7MB in the beginning and 52.6MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 819.13ms. Allocated memory is still 123.7MB. Free memory was 86.9MB in the beginning and 90.9MB in the end (delta: -3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.75ms. Allocated memory is still 123.7MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.78ms. Allocated memory is still 123.7MB. Free memory was 88.0MB in the beginning and 86.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 624.10ms. Allocated memory is still 123.7MB. Free memory was 86.7MB in the beginning and 72.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5886.45ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 72.0MB in the beginning and 118.3MB in the end (delta: -46.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 89.77ms. Allocated memory is still 199.2MB. Free memory was 118.3MB in the beginning and 115.1MB in the end (delta: 3.1MB). 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: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: 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, 137 locations, 9 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: 5.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 174 mSDsluCounter, 205 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 263 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1295 IncrementalHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 263 mSolverCounterUnsat, 205 mSDtfsCounter, 1295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1762occurred in iteration=3, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-20 06:00:12,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b17d2c-7e22-4fd7-bd6f-a334155f5857/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE