./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya --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 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:55:47,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:55:47,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 23:55:47,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:55:47,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:55:47,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:55:47,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:55:47,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:55:47,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:55:47,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:55:47,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:55:47,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:55:47,186 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:55:47,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:55:47,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:55:47,187 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:55:47,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:55:47,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:55:47,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:55:47,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:55:47,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:55:47,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:55:47,195 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 23:55:47,195 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:55:47,195 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:55:47,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:55:47,204 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:55:47,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:55:47,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:55:47,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:55:47,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:47,206 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:55:47,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:55:47,207 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:55:47,207 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:55:47,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:55:47,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:55:47,208 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:55:47,208 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:55:47,208 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:55:47,208 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:55:47,208 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_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 [2023-11-28 23:55:47,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:55:47,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:55:47,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:55:47,439 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:55:47,439 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:55:47,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i [2023-11-28 23:55:50,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:55:50,378 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:55:50,379 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i [2023-11-28 23:55:50,395 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/data/de5b4e684/b964dd8f45a84231872d7fe1e7bc4647/FLAGe92c2f91e [2023-11-28 23:55:50,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/data/de5b4e684/b964dd8f45a84231872d7fe1e7bc4647 [2023-11-28 23:55:50,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:55:50,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:55:50,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:50,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:55:50,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:55:50,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:50,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eca6c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50, skipping insertion in model container [2023-11-28 23:55:50,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:50,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:55:50,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:50,861 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:55:50,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:50,957 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:55:50,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50 WrapperNode [2023-11-28 23:55:50,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:50,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:50,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:55:50,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:55:50,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:50,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,002 INFO L138 Inliner]: procedures = 265, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2023-11-28 23:55:51,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:51,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:55:51,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:55:51,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:55:51,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:55:51,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:55:51,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:55:51,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:55:51,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (1/1) ... [2023-11-28 23:55:51,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:51,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:51,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:55:51,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:55:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:55:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:55:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-28 23:55:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 23:55:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 23:55:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-28 23:55:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:55:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-28 23:55:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-28 23:55:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-28 23:55:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:55:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:55:51,097 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 23:55:51,251 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:55:51,253 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:55:51,422 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:55:51,448 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:55:51,448 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:55:51,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:51 BoogieIcfgContainer [2023-11-28 23:55:51,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:55:51,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:55:51,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:55:51,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:55:51,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:55:50" (1/3) ... [2023-11-28 23:55:51,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ce4afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:51, skipping insertion in model container [2023-11-28 23:55:51,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:50" (2/3) ... [2023-11-28 23:55:51,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ce4afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:51, skipping insertion in model container [2023-11-28 23:55:51,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:51" (3/3) ... [2023-11-28 23:55:51,458 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_08-nonterm1.i [2023-11-28 23:55:51,465 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 23:55:51,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:55:51,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-28 23:55:51,473 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 23:55:51,521 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-28 23:55:51,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 207 flow [2023-11-28 23:55:51,597 INFO L124 PetriNetUnfolderBase]: 2/99 cut-off events. [2023-11-28 23:55:51,597 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 23:55:51,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 2/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-11-28 23:55:51,602 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 100 transitions, 207 flow [2023-11-28 23:55:51,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 92 transitions, 190 flow [2023-11-28 23:55:51,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:55:51,622 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;@400118cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:55:51,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-28 23:55:51,633 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 23:55:51,633 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2023-11-28 23:55:51,634 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 23:55:51,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:51,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:51,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-28 23:55:51,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:51,640 INFO L85 PathProgramCache]: Analyzing trace with hash -319734425, now seen corresponding path program 1 times [2023-11-28 23:55:51,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:51,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407225891] [2023-11-28 23:55:51,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:51,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:51,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:51,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407225891] [2023-11-28 23:55:51,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407225891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:51,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:51,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:55:51,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596563710] [2023-11-28 23:55:51,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:51,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:55:51,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:51,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:55:51,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:55:51,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 100 [2023-11-28 23:55:51,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-11-28 23:55:51,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:55:51,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 100 [2023-11-28 23:55:51,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:52,090 INFO L124 PetriNetUnfolderBase]: 74/397 cut-off events. [2023-11-28 23:55:52,091 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 23:55:52,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 397 events. 74/397 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1902 event pairs, 27 based on Foata normal form. 8/365 useless extension candidates. Maximal degree in co-relation 535. Up to 89 conditions per place. [2023-11-28 23:55:52,096 INFO L140 encePairwiseOnDemand]: 86/100 looper letters, 25 selfloop transitions, 9 changer transitions 0/97 dead transitions. [2023-11-28 23:55:52,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 97 transitions, 265 flow [2023-11-28 23:55:52,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:55:52,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:55:52,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-11-28 23:55:52,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8866666666666667 [2023-11-28 23:55:52,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-11-28 23:55:52,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-11-28 23:55:52,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:52,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-11-28 23:55:52,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2023-11-28 23:55:52,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,124 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 190 flow. Second operand 3 states and 266 transitions. [2023-11-28 23:55:52,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 97 transitions, 265 flow [2023-11-28 23:55:52,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 97 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:55:52,131 INFO L231 Difference]: Finished difference. Result has 88 places, 91 transitions, 244 flow [2023-11-28 23:55:52,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=88, PETRI_TRANSITIONS=91} [2023-11-28 23:55:52,136 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -6 predicate places. [2023-11-28 23:55:52,136 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 91 transitions, 244 flow [2023-11-28 23:55:52,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-11-28 23:55:52,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:52,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:52,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:55:52,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-28 23:55:52,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:52,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1848938794, now seen corresponding path program 1 times [2023-11-28 23:55:52,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:52,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267747779] [2023-11-28 23:55:52,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:52,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:52,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:52,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267747779] [2023-11-28 23:55:52,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267747779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:52,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:52,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:55:52,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063720115] [2023-11-28 23:55:52,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:52,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:55:52,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:52,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:55:52,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:55:52,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 100 [2023-11-28 23:55:52,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 91 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-11-28 23:55:52,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:55:52,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 100 [2023-11-28 23:55:52,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:52,387 INFO L124 PetriNetUnfolderBase]: 81/452 cut-off events. [2023-11-28 23:55:52,388 INFO L125 PetriNetUnfolderBase]: For 162/169 co-relation queries the response was YES. [2023-11-28 23:55:52,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 452 events. 81/452 cut-off events. For 162/169 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2352 event pairs, 36 based on Foata normal form. 4/420 useless extension candidates. Maximal degree in co-relation 755. Up to 143 conditions per place. [2023-11-28 23:55:52,393 INFO L140 encePairwiseOnDemand]: 94/100 looper letters, 23 selfloop transitions, 7 changer transitions 0/98 dead transitions. [2023-11-28 23:55:52,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 98 transitions, 328 flow [2023-11-28 23:55:52,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:55:52,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:55:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2023-11-28 23:55:52,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.87 [2023-11-28 23:55:52,397 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 261 transitions. [2023-11-28 23:55:52,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 261 transitions. [2023-11-28 23:55:52,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:52,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 261 transitions. [2023-11-28 23:55:52,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2023-11-28 23:55:52,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,402 INFO L175 Difference]: Start difference. First operand has 88 places, 91 transitions, 244 flow. Second operand 3 states and 261 transitions. [2023-11-28 23:55:52,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 98 transitions, 328 flow [2023-11-28 23:55:52,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 98 transitions, 306 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:55:52,408 INFO L231 Difference]: Finished difference. Result has 90 places, 96 transitions, 282 flow [2023-11-28 23:55:52,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=90, PETRI_TRANSITIONS=96} [2023-11-28 23:55:52,409 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -4 predicate places. [2023-11-28 23:55:52,409 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 96 transitions, 282 flow [2023-11-28 23:55:52,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-11-28 23:55:52,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:52,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:52,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 23:55:52,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-28 23:55:52,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1953764894, now seen corresponding path program 1 times [2023-11-28 23:55:52,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:52,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680124248] [2023-11-28 23:55:52,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:52,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:52,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680124248] [2023-11-28 23:55:52,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680124248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:52,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:52,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:55:52,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325244233] [2023-11-28 23:55:52,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:52,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:55:52,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:52,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:55:52,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:55:52,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 100 [2023-11-28 23:55:52,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 96 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-11-28 23:55:52,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:55:52,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 100 [2023-11-28 23:55:52,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:52,626 INFO L124 PetriNetUnfolderBase]: 127/635 cut-off events. [2023-11-28 23:55:52,626 INFO L125 PetriNetUnfolderBase]: For 232/241 co-relation queries the response was YES. [2023-11-28 23:55:52,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 635 events. 127/635 cut-off events. For 232/241 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3672 event pairs, 45 based on Foata normal form. 5/580 useless extension candidates. Maximal degree in co-relation 1112. Up to 198 conditions per place. [2023-11-28 23:55:52,632 INFO L140 encePairwiseOnDemand]: 92/100 looper letters, 27 selfloop transitions, 12 changer transitions 0/108 dead transitions. [2023-11-28 23:55:52,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 108 transitions, 404 flow [2023-11-28 23:55:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:55:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:55:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2023-11-28 23:55:52,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2023-11-28 23:55:52,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2023-11-28 23:55:52,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2023-11-28 23:55:52,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:52,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2023-11-28 23:55:52,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2023-11-28 23:55:52,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,639 INFO L175 Difference]: Start difference. First operand has 90 places, 96 transitions, 282 flow. Second operand 3 states and 260 transitions. [2023-11-28 23:55:52,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 108 transitions, 404 flow [2023-11-28 23:55:52,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 108 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:55:52,645 INFO L231 Difference]: Finished difference. Result has 92 places, 104 transitions, 366 flow [2023-11-28 23:55:52,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=92, PETRI_TRANSITIONS=104} [2023-11-28 23:55:52,646 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2023-11-28 23:55:52,646 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 104 transitions, 366 flow [2023-11-28 23:55:52,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-11-28 23:55:52,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:52,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:52,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 23:55:52,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-28 23:55:52,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:52,648 INFO L85 PathProgramCache]: Analyzing trace with hash 746619050, now seen corresponding path program 1 times [2023-11-28 23:55:52,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:52,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404998743] [2023-11-28 23:55:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:52,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:52,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:52,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:52,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404998743] [2023-11-28 23:55:52,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404998743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:52,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:52,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:55:52,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53504240] [2023-11-28 23:55:52,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:52,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:55:52,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:52,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:55:52,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:55:52,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 100 [2023-11-28 23:55:52,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 104 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2023-11-28 23:55:52,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:55:52,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 100 [2023-11-28 23:55:52,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:52,869 INFO L124 PetriNetUnfolderBase]: 32/274 cut-off events. [2023-11-28 23:55:52,870 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-11-28 23:55:52,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 274 events. 32/274 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1109 event pairs, 6 based on Foata normal form. 2/261 useless extension candidates. Maximal degree in co-relation 434. Up to 37 conditions per place. [2023-11-28 23:55:52,873 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 6 selfloop transitions, 5 changer transitions 0/94 dead transitions. [2023-11-28 23:55:52,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 94 transitions, 308 flow [2023-11-28 23:55:52,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:55:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:55:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-28 23:55:52,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2023-11-28 23:55:52,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-28 23:55:52,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-28 23:55:52,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:52,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-28 23:55:52,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2023-11-28 23:55:52,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,881 INFO L175 Difference]: Start difference. First operand has 92 places, 104 transitions, 366 flow. Second operand 3 states and 280 transitions. [2023-11-28 23:55:52,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 94 transitions, 308 flow [2023-11-28 23:55:52,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 94 transitions, 276 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-11-28 23:55:52,887 INFO L231 Difference]: Finished difference. Result has 89 places, 93 transitions, 271 flow [2023-11-28 23:55:52,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=89, PETRI_TRANSITIONS=93} [2023-11-28 23:55:52,888 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -5 predicate places. [2023-11-28 23:55:52,888 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 93 transitions, 271 flow [2023-11-28 23:55:52,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2023-11-28 23:55:52,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:52,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:52,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 23:55:52,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-28 23:55:52,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:52,890 INFO L85 PathProgramCache]: Analyzing trace with hash 118202933, now seen corresponding path program 1 times [2023-11-28 23:55:52,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:52,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426004289] [2023-11-28 23:55:52,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:52,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:53,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:53,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426004289] [2023-11-28 23:55:53,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426004289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:53,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:53,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:55:53,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13656533] [2023-11-28 23:55:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:53,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:55:53,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:53,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:55:53,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:55:53,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 100 [2023-11-28 23:55:53,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 93 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 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) [2023-11-28 23:55:53,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:55:53,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 100 [2023-11-28 23:55:53,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:53,335 INFO L124 PetriNetUnfolderBase]: 52/311 cut-off events. [2023-11-28 23:55:53,335 INFO L125 PetriNetUnfolderBase]: For 76/78 co-relation queries the response was YES. [2023-11-28 23:55:53,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 311 events. 52/311 cut-off events. For 76/78 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1427 event pairs, 7 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 533. Up to 33 conditions per place. [2023-11-28 23:55:53,338 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 22 selfloop transitions, 4 changer transitions 6/108 dead transitions. [2023-11-28 23:55:53,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 108 transitions, 397 flow [2023-11-28 23:55:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:55:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:55:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 511 transitions. [2023-11-28 23:55:53,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8516666666666667 [2023-11-28 23:55:53,341 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 511 transitions. [2023-11-28 23:55:53,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 511 transitions. [2023-11-28 23:55:53,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:53,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 511 transitions. [2023-11-28 23:55:53,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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) [2023-11-28 23:55:53,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2023-11-28 23:55:53,347 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2023-11-28 23:55:53,347 INFO L175 Difference]: Start difference. First operand has 89 places, 93 transitions, 271 flow. Second operand 6 states and 511 transitions. [2023-11-28 23:55:53,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 108 transitions, 397 flow [2023-11-28 23:55:53,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 108 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:55:53,357 INFO L231 Difference]: Finished difference. Result has 92 places, 90 transitions, 264 flow [2023-11-28 23:55:53,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=264, PETRI_PLACES=92, PETRI_TRANSITIONS=90} [2023-11-28 23:55:53,359 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2023-11-28 23:55:53,359 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 90 transitions, 264 flow [2023-11-28 23:55:53,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 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) [2023-11-28 23:55:53,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:53,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:53,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 23:55:53,360 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-28 23:55:53,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash -241873164, now seen corresponding path program 1 times [2023-11-28 23:55:53,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:53,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807536801] [2023-11-28 23:55:53,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:53,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:53,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:53,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807536801] [2023-11-28 23:55:53,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807536801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:53,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:53,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:55:53,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369262899] [2023-11-28 23:55:53,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:53,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:55:53,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:53,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:55:53,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:55:53,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 100 [2023-11-28 23:55:53,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 90 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-11-28 23:55:53,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:55:53,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 100 [2023-11-28 23:55:53,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:55:53,490 INFO L124 PetriNetUnfolderBase]: 69/353 cut-off events. [2023-11-28 23:55:53,490 INFO L125 PetriNetUnfolderBase]: For 144/147 co-relation queries the response was YES. [2023-11-28 23:55:53,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 353 events. 69/353 cut-off events. For 144/147 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1573 event pairs, 24 based on Foata normal form. 1/339 useless extension candidates. Maximal degree in co-relation 690. Up to 116 conditions per place. [2023-11-28 23:55:53,492 INFO L140 encePairwiseOnDemand]: 94/100 looper letters, 20 selfloop transitions, 7 changer transitions 6/97 dead transitions. [2023-11-28 23:55:53,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 97 transitions, 356 flow [2023-11-28 23:55:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:55:53,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:55:53,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-11-28 23:55:53,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8533333333333334 [2023-11-28 23:55:53,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-11-28 23:55:53,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-11-28 23:55:53,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:55:53,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-11-28 23:55:53,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-28 23:55:53,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:53,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:53,496 INFO L175 Difference]: Start difference. First operand has 92 places, 90 transitions, 264 flow. Second operand 3 states and 256 transitions. [2023-11-28 23:55:53,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 97 transitions, 356 flow [2023-11-28 23:55:53,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 97 transitions, 349 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 23:55:53,499 INFO L231 Difference]: Finished difference. Result has 92 places, 90 transitions, 293 flow [2023-11-28 23:55:53,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=92, PETRI_TRANSITIONS=90} [2023-11-28 23:55:53,500 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2023-11-28 23:55:53,501 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 90 transitions, 293 flow [2023-11-28 23:55:53,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-11-28 23:55:53,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:55:53,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:53,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 23:55:53,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-28 23:55:53,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:53,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1746416152, now seen corresponding path program 1 times [2023-11-28 23:55:53,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:53,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322599788] [2023-11-28 23:55:53,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:53,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:55:53,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:55:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:55:53,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:55:53,555 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 23:55:53,556 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2023-11-28 23:55:53,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-11-28 23:55:53,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-11-28 23:55:53,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-11-28 23:55:53,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-11-28 23:55:53,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2023-11-28 23:55:53,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-11-28 23:55:53,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-11-28 23:55:53,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-11-28 23:55:53,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-11-28 23:55:53,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-11-28 23:55:53,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-11-28 23:55:53,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-11-28 23:55:53,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 23:55:53,560 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:53,566 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-28 23:55:53,566 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:55:53,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-28 23:55:53,595 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-28 23:55:53,596 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet41 could not be translated [2023-11-28 23:55:53,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:55:53 BasicIcfg [2023-11-28 23:55:53,603 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:55:53,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:55:53,604 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:55:53,604 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:55:53,604 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:51" (3/4) ... [2023-11-28 23:55:53,606 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 23:55:53,606 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:55:53,607 INFO L158 Benchmark]: Toolchain (without parser) took 3192.33ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 120.9MB in the beginning and 108.3MB in the end (delta: 12.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-28 23:55:53,608 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:55:53,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.12ms. Allocated memory is still 153.1MB. Free memory was 120.9MB in the beginning and 92.2MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-28 23:55:53,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.02ms. Allocated memory is still 153.1MB. Free memory was 92.2MB in the beginning and 90.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:55:53,609 INFO L158 Benchmark]: Boogie Preprocessor took 28.88ms. Allocated memory is still 153.1MB. Free memory was 90.1MB in the beginning and 88.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:55:53,610 INFO L158 Benchmark]: RCFGBuilder took 417.56ms. Allocated memory is still 153.1MB. Free memory was 88.0MB in the beginning and 110.4MB in the end (delta: -22.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 23:55:53,610 INFO L158 Benchmark]: TraceAbstraction took 2150.38ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 109.4MB in the beginning and 109.4MB in the end (delta: 22.5kB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2023-11-28 23:55:53,611 INFO L158 Benchmark]: Witness Printer took 2.71ms. Allocated memory is still 184.5MB. Free memory was 109.4MB in the beginning and 108.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:55:53,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.12ms. Allocated memory is still 153.1MB. Free memory was 120.9MB in the beginning and 92.2MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.02ms. Allocated memory is still 153.1MB. Free memory was 92.2MB in the beginning and 90.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.88ms. Allocated memory is still 153.1MB. Free memory was 90.1MB in the beginning and 88.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.56ms. Allocated memory is still 153.1MB. Free memory was 88.0MB in the beginning and 110.4MB in the end (delta: -22.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2150.38ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 109.4MB in the beginning and 109.4MB in the end (delta: 22.5kB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Witness Printer took 2.71ms. Allocated memory is still 184.5MB. Free memory was 109.4MB in the beginning and 108.3MB in the end (delta: 1.0MB). 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~pre38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet41 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: - DataRaceFoundResult [Line: 924]: Data race detected [2023-11-28 23:55:53,633 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-28 23:55:53,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-28 23:55:53,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet41 could not be translated [2023-11-28 23:55:53,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-28 23:55:53,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-28 23:55:53,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet41 could not be translated Data race detected The following path leads to a data race: [L918] 0 int myglobal; VAL [myglobal=0] [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L936] 0 pthread_t id; VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L937] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L932] CALL 1 fun() [L922] 1 int i = __VERIFIER_nondet_int(); VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L939] EXPR 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L939] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=2] [L924] 1 myglobal+1 VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=2] [L939] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=2] [L924] 1 myglobal+1 VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=2] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [939] and C: myglobal+1 [924] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 937]: 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: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 140 locations, 13 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: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 326 IncrementalHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 40 mSDtfsCounter, 326 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=366occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-28 23:55:53,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385dae20-0965-4723-85c2-2d4661ef0dc4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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