./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY --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 f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:37:03,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:37:03,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:37:03,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:37:03,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:37:03,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:37:03,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:37:03,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:37:03,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:37:03,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:37:03,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:37:03,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:37:03,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:37:03,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:37:03,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:37:03,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:37:03,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:37:03,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:37:03,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:37:03,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:37:03,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:37:03,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:37:03,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:37:03,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:37:03,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:37:03,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:37:03,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:37:03,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:37:03,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:37:03,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:37:03,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:37:03,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:37:03,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:37:03,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:37:03,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:37:03,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:37:03,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:37:03,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:37:03,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:37:03,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:37:03,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:37:03,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-07 07:37:03,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:37:03,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:37:03,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:37:03,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:37:03,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:37:03,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:37:03,285 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:37:03,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:37:03,285 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:37:03,286 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:37:03,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:37:03,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:37:03,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:37:03,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:37:03,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:37:03,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:37:03,288 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-07 07:37:03,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:37:03,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:37:03,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:37:03,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:37:03,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:37:03,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:37:03,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:37:03,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:37:03,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:37:03,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:37:03,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:37:03,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:37:03,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:37:03,294 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:37:03,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:37:03,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:37:03,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:37:03,295 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_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab [2021-11-07 07:37:03,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:37:03,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:37:03,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:37:03,604 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:37:03,604 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:37:03,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i [2021-11-07 07:37:03,691 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/data/8f8c9763a/5d3003eeceb1469da57884c17df31deb/FLAG650a77361 [2021-11-07 07:37:04,269 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:37:04,270 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i [2021-11-07 07:37:04,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/data/8f8c9763a/5d3003eeceb1469da57884c17df31deb/FLAG650a77361 [2021-11-07 07:37:04,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/data/8f8c9763a/5d3003eeceb1469da57884c17df31deb [2021-11-07 07:37:04,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:37:04,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:37:04,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:37:04,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:37:04,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:37:04,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:37:04" (1/1) ... [2021-11-07 07:37:04,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0a8227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:04, skipping insertion in model container [2021-11-07 07:37:04,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:37:04" (1/1) ... [2021-11-07 07:37:04,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:37:04,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:37:05,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:37:05,177 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:37:05,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:37:05,337 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:37:05,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05 WrapperNode [2021-11-07 07:37:05,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:37:05,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:37:05,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:37:05,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:37:05,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:37:05,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:37:05,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:37:05,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:37:05,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:37:05,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:37:05,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:37:05,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:37:05,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (1/1) ... [2021-11-07 07:37:05,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:37:05,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:37:05,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:37:05,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:37:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:37:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:37:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:37:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:37:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 07:37:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 07:37:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 07:37:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:37:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:37:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:37:05,578 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 07:37:06,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:37:06,015 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 07:37:06,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:37:06 BoogieIcfgContainer [2021-11-07 07:37:06,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:37:06,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:37:06,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:37:06,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:37:06,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:37:04" (1/3) ... [2021-11-07 07:37:06,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9883a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:37:06, skipping insertion in model container [2021-11-07 07:37:06,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:05" (2/3) ... [2021-11-07 07:37:06,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9883a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:37:06, skipping insertion in model container [2021-11-07 07:37:06,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:37:06" (3/3) ... [2021-11-07 07:37:06,027 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.i [2021-11-07 07:37:06,033 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 07:37:06,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:37:06,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 07:37:06,033 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 07:37:06,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,079 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,079 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,080 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,080 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,088 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,088 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,088 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,089 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,089 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,089 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,092 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,092 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,092 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,092 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,100 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,103 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,103 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,103 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,104 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:37:06,125 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-07 07:37:06,182 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:37:06,189 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 [2021-11-07 07:37:06,189 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 07:37:06,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 174 flow [2021-11-07 07:37:06,275 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2021-11-07 07:37:06,275 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-07 07:37:06,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 0/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-07 07:37:06,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 83 transitions, 174 flow [2021-11-07 07:37:06,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 75 transitions, 153 flow [2021-11-07 07:37:06,313 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-11-07 07:37:06,314 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 07:37:06,314 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:37:06,315 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] [2021-11-07 07:37:06,316 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 07:37:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash -940922286, now seen corresponding path program 1 times [2021-11-07 07:37:06,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:06,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055378849] [2021-11-07 07:37:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:06,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:06,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:06,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055378849] [2021-11-07 07:37:06,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055378849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:06,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:06,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:37:06,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463553117] [2021-11-07 07:37:06,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:37:06,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:37:06,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:37:06,709 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 83 [2021-11-07 07:37:06,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 75 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2021-11-07 07:37:06,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:37:06,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 83 [2021-11-07 07:37:06,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:37:06,898 INFO L129 PetriNetUnfolder]: 29/252 cut-off events. [2021-11-07 07:37:06,898 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 07:37:06,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 252 events. 29/252 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 981 event pairs, 8 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 298. Up to 51 conditions per place. [2021-11-07 07:37:06,907 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 12 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2021-11-07 07:37:06,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 81 transitions, 201 flow [2021-11-07 07:37:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:37:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-07 07:37:06,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2021-11-07 07:37:06,923 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9397590361445783 [2021-11-07 07:37:06,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2021-11-07 07:37:06,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2021-11-07 07:37:06,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:37:06,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2021-11-07 07:37:06,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2021-11-07 07:37:06,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-11-07 07:37:06,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-11-07 07:37:06,950 INFO L186 Difference]: Start difference. First operand has 79 places, 75 transitions, 153 flow. Second operand 3 states and 234 transitions. [2021-11-07 07:37:06,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 81 transitions, 201 flow [2021-11-07 07:37:06,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 81 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-07 07:37:06,958 INFO L242 Difference]: Finished difference. Result has 81 places, 79 transitions, 198 flow [2021-11-07 07:37:06,961 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=81, PETRI_TRANSITIONS=79} [2021-11-07 07:37:06,962 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2021-11-07 07:37:06,962 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 79 transitions, 198 flow [2021-11-07 07:37:06,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2021-11-07 07:37:06,963 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:37:06,963 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] [2021-11-07 07:37:06,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:37:06,963 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 07:37:06,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:06,968 INFO L85 PathProgramCache]: Analyzing trace with hash 594055189, now seen corresponding path program 1 times [2021-11-07 07:37:06,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:06,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144573321] [2021-11-07 07:37:06,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:06,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:07,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:07,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:07,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144573321] [2021-11-07 07:37:07,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144573321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:07,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:07,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:37:07,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304645870] [2021-11-07 07:37:07,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:37:07,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:07,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:37:07,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:37:07,081 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 83 [2021-11-07 07:37:07,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-11-07 07:37:07,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:37:07,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 83 [2021-11-07 07:37:07,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:37:07,186 INFO L129 PetriNetUnfolder]: 40/321 cut-off events. [2021-11-07 07:37:07,186 INFO L130 PetriNetUnfolder]: For 61/66 co-relation queries the response was YES. [2021-11-07 07:37:07,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 321 events. 40/321 cut-off events. For 61/66 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1494 event pairs, 14 based on Foata normal form. 2/309 useless extension candidates. Maximal degree in co-relation 472. Up to 76 conditions per place. [2021-11-07 07:37:07,190 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 24 selfloop transitions, 6 changer transitions 0/90 dead transitions. [2021-11-07 07:37:07,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 306 flow [2021-11-07 07:37:07,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:37:07,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-07 07:37:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2021-11-07 07:37:07,193 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9116465863453815 [2021-11-07 07:37:07,193 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 227 transitions. [2021-11-07 07:37:07,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 227 transitions. [2021-11-07 07:37:07,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:37:07,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 227 transitions. [2021-11-07 07:37:07,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2021-11-07 07:37:07,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-11-07 07:37:07,197 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-11-07 07:37:07,198 INFO L186 Difference]: Start difference. First operand has 81 places, 79 transitions, 198 flow. Second operand 3 states and 227 transitions. [2021-11-07 07:37:07,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 306 flow [2021-11-07 07:37:07,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 90 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-07 07:37:07,203 INFO L242 Difference]: Finished difference. Result has 83 places, 84 transitions, 238 flow [2021-11-07 07:37:07,203 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=83, PETRI_TRANSITIONS=84} [2021-11-07 07:37:07,204 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2021-11-07 07:37:07,204 INFO L470 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 238 flow [2021-11-07 07:37:07,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-11-07 07:37:07,205 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:37:07,205 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] [2021-11-07 07:37:07,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:37:07,206 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 07:37:07,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:07,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1080502466, now seen corresponding path program 1 times [2021-11-07 07:37:07,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:07,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275240089] [2021-11-07 07:37:07,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:07,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:37:07,254 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:37:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:37:07,305 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:37:07,305 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 07:37:07,306 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 07:37:07,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 07:37:07,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-11-07 07:37:07,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 07:37:07,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 07:37:07,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 07:37:07,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 07:37:07,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 07:37:07,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:37:07,314 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 07:37:07,319 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 07:37:07,319 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:37:07,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:37:07 BasicIcfg [2021-11-07 07:37:07,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:37:07,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:37:07,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:37:07,365 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:37:07,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:37:06" (3/4) ... [2021-11-07 07:37:07,368 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:37:07,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:37:07,371 INFO L168 Benchmark]: Toolchain (without parser) took 2850.85 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 55.9 MB in the beginning and 74.6 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:07,371 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 63.6 MB in the beginning and 63.6 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:37:07,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.81 ms. Allocated memory is still 92.3 MB. Free memory was 55.6 MB in the beginning and 49.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:07,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 92.3 MB. Free memory was 49.4 MB in the beginning and 47.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:07,374 INFO L168 Benchmark]: Boogie Preprocessor took 51.86 ms. Allocated memory is still 92.3 MB. Free memory was 47.1 MB in the beginning and 45.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:07,375 INFO L168 Benchmark]: RCFGBuilder took 542.64 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 45.7 MB in the beginning and 93.0 MB in the end (delta: -47.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:07,375 INFO L168 Benchmark]: TraceAbstraction took 1344.43 ms. Allocated memory is still 121.6 MB. Free memory was 92.1 MB in the beginning and 75.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:07,376 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 121.6 MB. Free memory was 75.6 MB in the beginning and 74.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:07,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 63.6 MB in the beginning and 63.6 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 817.81 ms. Allocated memory is still 92.3 MB. Free memory was 55.6 MB in the beginning and 49.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 92.3 MB. Free memory was 49.4 MB in the beginning and 47.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.86 ms. Allocated memory is still 92.3 MB. Free memory was 47.1 MB in the beginning and 45.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 542.64 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 45.7 MB in the beginning and 93.0 MB in the end (delta: -47.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1344.43 ms. Allocated memory is still 121.6 MB. Free memory was 92.1 MB in the beginning and 75.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.33 ms. Allocated memory is still 121.6 MB. Free memory was 75.6 MB in the beginning and 74.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 - DataRaceFoundResult [Line: 934]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={5:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={5:0}, mutex2={6:0}, myglobal=0] [L920] 0 pthread_mutex_t mutex3 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={5:0}, mutex2={6:0}, mutex3={7:0}, myglobal=0] [L931] 0 pthread_t id; VAL [mutex1={5:0}, mutex2={6:0}, mutex3={7:0}, myglobal=0] [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, mutex1={5:0}, mutex2={6:0}, mutex3={7:0}, myglobal=0] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={5:0}, mutex2={6:0}, mutex3={7:0}, myglobal=0] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={5:0}, mutex2={6:0}, mutex3={7:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={5:0}, mutex2={6:0}, mutex3={7:0}, myglobal=1, myglobal=myglobal+1=25] [L934] 0 printf("myglobal equals %d\n",myglobal) VAL [arg={0:0}, arg={0:0}, mutex1={5:0}, mutex2={6:0}, mutex3={7:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: printf("myglobal equals %d\n",myglobal) [934] - UnprovableResult [Line: 937]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 29 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=238occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 76 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 07:37:07,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f7681c-e3a3-49de-8cae-71bdbb46d752/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE