./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-6-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-6-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6959d4f0e51834399b1f177b2907c6f040a7f82b22df70a4ffbb4c40805c24f4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:49,159 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:49,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:43:49,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:49,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:49,270 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:49,271 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:49,271 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:49,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:49,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:49,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:49,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:49,282 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:49,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:49,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:43:49,285 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:49,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:49,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:49,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:49,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:43:49,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:49,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:43:49,287 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:43:49,288 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:49,288 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:49,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:49,289 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:49,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:49,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:49,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:49,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:49,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:49,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:49,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:43:49,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:43:49,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:43:49,293 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:49,293 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:43:49,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:49,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:49,294 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:49,295 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6959d4f0e51834399b1f177b2907c6f040a7f82b22df70a4ffbb4c40805c24f4 [2023-11-19 07:43:49,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:49,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:49,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:49,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:49,610 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:49,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread/fib_safe-6-racy.i [2023-11-19 07:43:52,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:53,072 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:53,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/sv-benchmarks/c/pthread/fib_safe-6-racy.i [2023-11-19 07:43:53,092 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/data/6381adad3/6af7351fc5d24c82bebb8669c9a42113/FLAG84f398d2f [2023-11-19 07:43:53,107 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/data/6381adad3/6af7351fc5d24c82bebb8669c9a42113 [2023-11-19 07:43:53,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:53,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:53,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:53,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:53,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:53,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f794dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53, skipping insertion in model container [2023-11-19 07:43:53,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,179 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:53,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:53,629 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:53,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:53,777 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:53,777 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:53,786 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:53,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53 WrapperNode [2023-11-19 07:43:53,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:53,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:53,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:53,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:53,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,865 INFO L138 Inliner]: procedures = 164, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 124 [2023-11-19 07:43:53,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:53,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:53,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:53,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:53,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:53,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:53,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:53,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:53,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (1/1) ... [2023-11-19 07:43:53,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:53,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:53,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:53,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-19 07:43:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-19 07:43:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-19 07:43:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-19 07:43:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:43:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:43:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:43:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:43:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:43:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:43:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:54,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:54,037 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:43:54,257 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:54,263 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:54,663 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:54,757 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:54,757 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:43:54,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:54 BoogieIcfgContainer [2023-11-19 07:43:54,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:54,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:54,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:54,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:54,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:53" (1/3) ... [2023-11-19 07:43:54,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9067bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:54, skipping insertion in model container [2023-11-19 07:43:54,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:53" (2/3) ... [2023-11-19 07:43:54,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9067bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:54, skipping insertion in model container [2023-11-19 07:43:54,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:54" (3/3) ... [2023-11-19 07:43:54,774 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-6-racy.i [2023-11-19 07:43:54,784 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:43:54,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:54,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-19 07:43:54,798 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:43:54,870 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:43:54,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 194 transitions, 396 flow [2023-11-19 07:43:55,109 INFO L124 PetriNetUnfolderBase]: 9/192 cut-off events. [2023-11-19 07:43:55,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:55,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 192 events. 9/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 393 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-11-19 07:43:55,127 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 194 transitions, 396 flow [2023-11-19 07:43:55,143 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 192 transitions, 390 flow [2023-11-19 07:43:55,149 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:43:55,164 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 192 transitions, 390 flow [2023-11-19 07:43:55,173 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 192 transitions, 390 flow [2023-11-19 07:43:55,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 192 transitions, 390 flow [2023-11-19 07:43:55,269 INFO L124 PetriNetUnfolderBase]: 9/192 cut-off events. [2023-11-19 07:43:55,269 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:55,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 192 events. 9/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 393 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-11-19 07:43:55,289 INFO L119 LiptonReduction]: Number of co-enabled transitions 13680 [2023-11-19 07:44:00,221 INFO L134 LiptonReduction]: Checked pairs total: 15669 [2023-11-19 07:44:00,222 INFO L136 LiptonReduction]: Total number of compositions: 223 [2023-11-19 07:44:00,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:44:00,261 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fbcb2a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:44:00,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2023-11-19 07:44:00,265 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:44:00,265 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:44:00,265 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:44:00,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:44:00,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:44:00,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-19 07:44:00,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:00,274 INFO L85 PathProgramCache]: Analyzing trace with hash 794, now seen corresponding path program 1 times [2023-11-19 07:44:00,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:00,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981500330] [2023-11-19 07:44:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:00,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:00,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:00,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:00,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981500330] [2023-11-19 07:44:00,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981500330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:00,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:00,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:44:00,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551163849] [2023-11-19 07:44:00,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:00,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:44:00,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:00,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:44:00,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:44:00,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 417 [2023-11-19 07:44:00,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 104 flow. Second operand has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:00,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:44:00,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 417 [2023-11-19 07:44:00,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:44:00,603 INFO L124 PetriNetUnfolderBase]: 97/179 cut-off events. [2023-11-19 07:44:00,603 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:44:00,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 179 events. 97/179 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 520 event pairs, 56 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 330. Up to 150 conditions per place. [2023-11-19 07:44:00,608 INFO L140 encePairwiseOnDemand]: 388/417 looper letters, 14 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-11-19 07:44:00,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 76 flow [2023-11-19 07:44:00,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:44:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:44:00,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2023-11-19 07:44:00,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47002398081534774 [2023-11-19 07:44:00,637 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2023-11-19 07:44:00,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2023-11-19 07:44:00,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:00,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2023-11-19 07:44:00,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:00,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:00,659 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:00,661 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 104 flow. Second operand 2 states and 392 transitions. [2023-11-19 07:44:00,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 76 flow [2023-11-19 07:44:00,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:44:00,668 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 42 flow [2023-11-19 07:44:00,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-11-19 07:44:00,676 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -29 predicate places. [2023-11-19 07:44:00,676 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 42 flow [2023-11-19 07:44:00,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:00,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:44:00,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:00,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:44:00,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-19 07:44:00,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:00,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1206380540, now seen corresponding path program 1 times [2023-11-19 07:44:00,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:00,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398317841] [2023-11-19 07:44:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:00,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:00,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:00,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398317841] [2023-11-19 07:44:00,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398317841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:00,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:00,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:44:00,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180499207] [2023-11-19 07:44:00,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:00,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:44:00,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:00,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:44:00,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:44:00,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 417 [2023-11-19 07:44:00,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:00,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:44:00,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 417 [2023-11-19 07:44:00,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:44:01,064 INFO L124 PetriNetUnfolderBase]: 97/194 cut-off events. [2023-11-19 07:44:01,064 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:44:01,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 194 events. 97/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 614 event pairs, 20 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 351. Up to 91 conditions per place. [2023-11-19 07:44:01,067 INFO L140 encePairwiseOnDemand]: 414/417 looper letters, 19 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-11-19 07:44:01,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 98 flow [2023-11-19 07:44:01,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:44:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:44:01,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2023-11-19 07:44:01,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42525979216626697 [2023-11-19 07:44:01,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2023-11-19 07:44:01,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2023-11-19 07:44:01,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:01,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2023-11-19 07:44:01,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,081 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,082 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 42 flow. Second operand 3 states and 532 transitions. [2023-11-19 07:44:01,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 98 flow [2023-11-19 07:44:01,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:44:01,084 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 54 flow [2023-11-19 07:44:01,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2023-11-19 07:44:01,085 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -27 predicate places. [2023-11-19 07:44:01,086 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 54 flow [2023-11-19 07:44:01,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:44:01,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:01,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:44:01,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-19 07:44:01,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:01,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1256875724, now seen corresponding path program 1 times [2023-11-19 07:44:01,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:01,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263623452] [2023-11-19 07:44:01,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:01,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:01,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263623452] [2023-11-19 07:44:01,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263623452] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:01,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953143342] [2023-11-19 07:44:01,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:01,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:01,205 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:01,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:44:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:01,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:44:01,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:44:01,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:44:01,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953143342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:01,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:44:01,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:44:01,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290192217] [2023-11-19 07:44:01,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:01,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:44:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:01,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:44:01,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:44:01,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 417 [2023-11-19 07:44:01,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:44:01,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 417 [2023-11-19 07:44:01,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:44:01,482 INFO L124 PetriNetUnfolderBase]: 203/337 cut-off events. [2023-11-19 07:44:01,482 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-19 07:44:01,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 337 events. 203/337 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1094 event pairs, 51 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 716. Up to 156 conditions per place. [2023-11-19 07:44:01,487 INFO L140 encePairwiseOnDemand]: 412/417 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-11-19 07:44:01,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 143 flow [2023-11-19 07:44:01,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:44:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:44:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2023-11-19 07:44:01,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324540367705835 [2023-11-19 07:44:01,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2023-11-19 07:44:01,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2023-11-19 07:44:01,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:01,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2023-11-19 07:44:01,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,501 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 54 flow. Second operand 3 states and 541 transitions. [2023-11-19 07:44:01,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 143 flow [2023-11-19 07:44:01,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 32 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:44:01,504 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 88 flow [2023-11-19 07:44:01,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2023-11-19 07:44:01,505 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-11-19 07:44:01,505 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 88 flow [2023-11-19 07:44:01,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:44:01,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:01,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:01,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:01,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-19 07:44:01,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:01,725 INFO L85 PathProgramCache]: Analyzing trace with hash 574303849, now seen corresponding path program 1 times [2023-11-19 07:44:01,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:01,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280937709] [2023-11-19 07:44:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:01,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:01,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280937709] [2023-11-19 07:44:01,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280937709] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:01,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608550876] [2023-11-19 07:44:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:01,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:01,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:01,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:44:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:01,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:44:01,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:02,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:02,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608550876] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:02,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:44:02,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:44:02,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613529756] [2023-11-19 07:44:02,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:02,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:44:02,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:02,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:44:02,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:44:02,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 417 [2023-11-19 07:44:02,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 88 flow. Second operand has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:02,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:44:02,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 417 [2023-11-19 07:44:02,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:44:02,239 INFO L124 PetriNetUnfolderBase]: 271/447 cut-off events. [2023-11-19 07:44:02,239 INFO L125 PetriNetUnfolderBase]: For 196/199 co-relation queries the response was YES. [2023-11-19 07:44:02,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 447 events. 271/447 cut-off events. For 196/199 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1429 event pairs, 42 based on Foata normal form. 45/479 useless extension candidates. Maximal degree in co-relation 1152. Up to 182 conditions per place. [2023-11-19 07:44:02,245 INFO L140 encePairwiseOnDemand]: 414/417 looper letters, 48 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-11-19 07:44:02,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 59 transitions, 318 flow [2023-11-19 07:44:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:44:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:44:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2023-11-19 07:44:02,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42326139088729015 [2023-11-19 07:44:02,250 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2023-11-19 07:44:02,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2023-11-19 07:44:02,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:02,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2023-11-19 07:44:02,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.5) internal successors, (1059), 6 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:02,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 417.0) internal successors, (2919), 7 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:02,264 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 417.0) internal successors, (2919), 7 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:02,265 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 88 flow. Second operand 6 states and 1059 transitions. [2023-11-19 07:44:02,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 59 transitions, 318 flow [2023-11-19 07:44:02,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 59 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:44:02,268 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 122 flow [2023-11-19 07:44:02,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-11-19 07:44:02,270 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2023-11-19 07:44:02,270 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 122 flow [2023-11-19 07:44:02,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:02,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:44:02,271 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:02,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-19 07:44:02,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:02,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-19 07:44:02,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:02,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1378790165, now seen corresponding path program 2 times [2023-11-19 07:44:02,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:02,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561054932] [2023-11-19 07:44:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:02,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:02,690 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:02,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561054932] [2023-11-19 07:44:02,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561054932] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:02,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170577604] [2023-11-19 07:44:02,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:44:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:02,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:02,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:02,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:44:02,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:44:02,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:44:02,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:44:02,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:02,864 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:02,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170577604] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:02,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:44:02,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-19 07:44:02,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620568771] [2023-11-19 07:44:02,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:02,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:44:02,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:02,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:44:02,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:44:02,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 417 [2023-11-19 07:44:02,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 122 flow. Second operand has 13 states, 13 states have (on average 170.53846153846155) internal successors, (2217), 13 states have internal predecessors, (2217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:02,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:44:02,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 417 [2023-11-19 07:44:02,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:44:03,278 INFO L124 PetriNetUnfolderBase]: 451/717 cut-off events. [2023-11-19 07:44:03,279 INFO L125 PetriNetUnfolderBase]: For 806/809 co-relation queries the response was YES. [2023-11-19 07:44:03,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 717 events. 451/717 cut-off events. For 806/809 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2224 event pairs, 42 based on Foata normal form. 90/791 useless extension candidates. Maximal degree in co-relation 2043. Up to 182 conditions per place. [2023-11-19 07:44:03,288 INFO L140 encePairwiseOnDemand]: 414/417 looper letters, 96 selfloop transitions, 11 changer transitions 0/113 dead transitions. [2023-11-19 07:44:03,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 113 transitions, 612 flow [2023-11-19 07:44:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:44:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 07:44:03,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2118 transitions. [2023-11-19 07:44:03,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42326139088729015 [2023-11-19 07:44:03,299 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2118 transitions. [2023-11-19 07:44:03,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2118 transitions. [2023-11-19 07:44:03,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:03,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2118 transitions. [2023-11-19 07:44:03,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 176.5) internal successors, (2118), 12 states have internal predecessors, (2118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:03,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 417.0) internal successors, (5421), 13 states have internal predecessors, (5421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:03,327 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 417.0) internal successors, (5421), 13 states have internal predecessors, (5421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:03,327 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 122 flow. Second operand 12 states and 2118 transitions. [2023-11-19 07:44:03,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 113 transitions, 612 flow [2023-11-19 07:44:03,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 113 transitions, 598 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-19 07:44:03,341 INFO L231 Difference]: Finished difference. Result has 50 places, 33 transitions, 204 flow [2023-11-19 07:44:03,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=204, PETRI_PLACES=50, PETRI_TRANSITIONS=33} [2023-11-19 07:44:03,344 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-11-19 07:44:03,345 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 33 transitions, 204 flow [2023-11-19 07:44:03,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 170.53846153846155) internal successors, (2217), 13 states have internal predecessors, (2217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:03,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:44:03,347 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:03,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:03,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:03,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-19 07:44:03,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:03,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1865923541, now seen corresponding path program 3 times [2023-11-19 07:44:03,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:03,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953625474] [2023-11-19 07:44:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:03,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:03,919 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:03,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:03,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953625474] [2023-11-19 07:44:03,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953625474] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:03,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653817372] [2023-11-19 07:44:03,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:44:03,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:03,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:03,922 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:03,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:44:04,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-19 07:44:04,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:44:04,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:44:04,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:04,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:04,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653817372] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:04,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:44:04,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2023-11-19 07:44:04,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709558235] [2023-11-19 07:44:04,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:04,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-19 07:44:04,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:04,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-19 07:44:04,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:44:04,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 417 [2023-11-19 07:44:04,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 33 transitions, 204 flow. Second operand has 17 states, 17 states have (on average 170.47058823529412) internal successors, (2898), 17 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:04,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:44:04,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 417 [2023-11-19 07:44:04,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:44:04,680 INFO L124 PetriNetUnfolderBase]: 571/897 cut-off events. [2023-11-19 07:44:04,680 INFO L125 PetriNetUnfolderBase]: For 3550/3553 co-relation queries the response was YES. [2023-11-19 07:44:04,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2898 conditions, 897 events. 571/897 cut-off events. For 3550/3553 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2754 event pairs, 42 based on Foata normal form. 60/941 useless extension candidates. Maximal degree in co-relation 2882. Up to 196 conditions per place. [2023-11-19 07:44:04,691 INFO L140 encePairwiseOnDemand]: 414/417 looper letters, 128 selfloop transitions, 15 changer transitions 0/149 dead transitions. [2023-11-19 07:44:04,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 149 transitions, 858 flow [2023-11-19 07:44:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:44:04,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-19 07:44:04,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2820 transitions. [2023-11-19 07:44:04,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226618705035971 [2023-11-19 07:44:04,701 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2820 transitions. [2023-11-19 07:44:04,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2820 transitions. [2023-11-19 07:44:04,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:04,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2820 transitions. [2023-11-19 07:44:04,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 176.25) internal successors, (2820), 16 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:04,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 417.0) internal successors, (7089), 17 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:04,727 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 417.0) internal successors, (7089), 17 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:04,728 INFO L175 Difference]: Start difference. First operand has 50 places, 33 transitions, 204 flow. Second operand 16 states and 2820 transitions. [2023-11-19 07:44:04,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 149 transitions, 858 flow [2023-11-19 07:44:04,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 149 transitions, 802 flow, removed 23 selfloop flow, removed 5 redundant places. [2023-11-19 07:44:04,738 INFO L231 Difference]: Finished difference. Result has 64 places, 37 transitions, 236 flow [2023-11-19 07:44:04,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=236, PETRI_PLACES=64, PETRI_TRANSITIONS=37} [2023-11-19 07:44:04,739 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2023-11-19 07:44:04,739 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 37 transitions, 236 flow [2023-11-19 07:44:04,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 170.47058823529412) internal successors, (2898), 17 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:04,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:44:04,742 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:04,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:04,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:44:04,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-19 07:44:04,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1626590293, now seen corresponding path program 4 times [2023-11-19 07:44:04,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:04,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932617854] [2023-11-19 07:44:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:04,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:05,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:05,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:44:05,115 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:44:05,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2023-11-19 07:44:05,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2023-11-19 07:44:05,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2023-11-19 07:44:05,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2023-11-19 07:44:05,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2023-11-19 07:44:05,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2023-11-19 07:44:05,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2023-11-19 07:44:05,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2023-11-19 07:44:05,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2023-11-19 07:44:05,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2023-11-19 07:44:05,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2023-11-19 07:44:05,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2023-11-19 07:44:05,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2023-11-19 07:44:05,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2023-11-19 07:44:05,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2023-11-19 07:44:05,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2023-11-19 07:44:05,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2023-11-19 07:44:05,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2023-11-19 07:44:05,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2023-11-19 07:44:05,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2023-11-19 07:44:05,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2023-11-19 07:44:05,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2023-11-19 07:44:05,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2023-11-19 07:44:05,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2023-11-19 07:44:05,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2023-11-19 07:44:05,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2023-11-19 07:44:05,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2023-11-19 07:44:05,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2023-11-19 07:44:05,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2023-11-19 07:44:05,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2023-11-19 07:44:05,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2023-11-19 07:44:05,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2023-11-19 07:44:05,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2023-11-19 07:44:05,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2023-11-19 07:44:05,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2023-11-19 07:44:05,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2023-11-19 07:44:05,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2023-11-19 07:44:05,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2023-11-19 07:44:05,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2023-11-19 07:44:05,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2023-11-19 07:44:05,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2023-11-19 07:44:05,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2023-11-19 07:44:05,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2023-11-19 07:44:05,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2023-11-19 07:44:05,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2023-11-19 07:44:05,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2023-11-19 07:44:05,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:44:05,131 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2023-11-19 07:44:05,139 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:44:05,140 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:44:05,206 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-19 07:44:05,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated [2023-11-19 07:44:05,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:44:05 BasicIcfg [2023-11-19 07:44:05,234 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:44:05,235 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:44:05,235 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:44:05,235 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:44:05,236 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:54" (3/4) ... [2023-11-19 07:44:05,238 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:44:05,240 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:44:05,240 INFO L158 Benchmark]: Toolchain (without parser) took 12128.69ms. Allocated memory was 184.5MB in the beginning and 299.9MB in the end (delta: 115.3MB). Free memory was 133.3MB in the beginning and 169.8MB in the end (delta: -36.5MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2023-11-19 07:44:05,241 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 184.5MB. Free memory is still 154.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:44:05,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.25ms. Allocated memory is still 184.5MB. Free memory was 133.3MB in the beginning and 113.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:44:05,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.53ms. Allocated memory is still 184.5MB. Free memory was 113.0MB in the beginning and 110.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:44:05,242 INFO L158 Benchmark]: Boogie Preprocessor took 49.81ms. Allocated memory is still 184.5MB. Free memory was 110.9MB in the beginning and 109.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:44:05,243 INFO L158 Benchmark]: RCFGBuilder took 838.60ms. Allocated memory is still 184.5MB. Free memory was 109.5MB in the beginning and 87.2MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:44:05,244 INFO L158 Benchmark]: TraceAbstraction took 10467.90ms. Allocated memory was 184.5MB in the beginning and 299.9MB in the end (delta: 115.3MB). Free memory was 86.5MB in the beginning and 169.8MB in the end (delta: -83.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-19 07:44:05,244 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 299.9MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:44:05,247 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 184.5MB. Free memory is still 154.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 674.25ms. Allocated memory is still 184.5MB. Free memory was 133.3MB in the beginning and 113.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.53ms. Allocated memory is still 184.5MB. Free memory was 113.0MB in the beginning and 110.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.81ms. Allocated memory is still 184.5MB. Free memory was 110.9MB in the beginning and 109.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 838.60ms. Allocated memory is still 184.5MB. Free memory was 109.5MB in the beginning and 87.2MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10467.90ms. Allocated memory was 184.5MB in the beginning and 299.9MB in the end (delta: 115.3MB). Free memory was 86.5MB in the beginning and 169.8MB in the end (delta: -83.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 299.9MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 190 PlacesBefore, 52 PlacesAfterwards, 192 TransitionsBefore, 49 TransitionsAfterwards, 13680 CoEnabledTransitionPairs, 8 FixpointIterations, 31 TrivialSequentialCompositions, 171 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 5 ChoiceCompositions, 223 TotalNumberOfCompositions, 15669 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12297, independent: 12161, independent conditional: 0, independent unconditional: 12161, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7416, independent: 7373, independent conditional: 0, independent unconditional: 7373, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12297, independent: 4788, independent conditional: 0, independent unconditional: 4788, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 7416, unknown conditional: 0, unknown unconditional: 7416] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 725]: Data race detected [2023-11-19 07:44:05,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-19 07:44:05,308 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated [2023-11-19 07:44:05,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-19 07:44:05,361 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated Data race detected The following path leads to a data race: [L683] 0 int i, j; [L686] 0 int p, q; [L703] 0 int cur = 1, prev = 0, next = 0; [L704] 0 int x; [L714] 0 pthread_t id1, id2; [L716] 0 i = 1 [L719] 0 j = 1 [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=614, arg={0:0}, argc=614, argv={611:612}, argv={611:612}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=614, arg={0:0}, arg={0:0}, arg={0:0}, argc=614, argv={611:612}, argv={611:612}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 14 [L706] COND TRUE 0 x < 14 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 14 [L706] COND FALSE 0 !(x < 14) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i <= correct VAL [\old(argc)=614, arg={0:0}, arg={0:0}, arg={0:0}, argc=614, argv={611:612}, argv={611:612}, correct=377, cur=610, i=1, id1={3:0}, id2={5:0}, j=1, next=610, p=0, prev=377, q=0, x=14] [L688] 1 p < 6 [L688] COND TRUE 1 p < 6 [L690] EXPR 1 i + j [L690] 1 i = i + j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=2, j=1, next=610, p=1, prev=377, q=0, x=14] [L725] 0 i <= correct VAL [\old(argc)=614, arg={0:0}, arg={0:0}, arg={0:0}, argc=614, argv={611:612}, argv={611:612}, correct=377, cur=610, i=2, id1={3:0}, id2={5:0}, j=1, next=610, p=1, prev=377, q=0, x=14] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i <= correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: 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 5 procedures, 246 locations, 46 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: 10.2s, OverallIterations: 7, TraceHistogramMax: 14, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 499 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 477 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 447 IncrementalHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 4 mSDtfsCounter, 447 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 73 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=6, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 683 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 1/200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:44:05,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9f749-fdd6-4061-9642-ce8b0277fa7e/bin/uautomizer-verify-uCwYo4JHxu/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