./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:30:37,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:30:37,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:30:37,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:30:37,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:30:37,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:30:37,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:30:37,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:30:37,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:30:37,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:30:37,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:30:37,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:30:37,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:30:37,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:30:37,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:30:37,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:30:37,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:30:37,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:30:37,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:30:37,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:30:37,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:30:37,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:30:37,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:30:37,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:30:37,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:30:37,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:30:37,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:30:37,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:30:37,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:30:37,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:30:37,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:30:37,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:30:37,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:30:37,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:30:37,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:30:37,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:30:37,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:30:37,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:30:37,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:30:37,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:30:37,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:30:37,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 07:30:37,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:30:37,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:30:37,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:30:37,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:30:37,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:30:37,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:30:37,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:30:37,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:30:37,410 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:30:37,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:30:37,412 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:30:37,412 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:30:37,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:30:37,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:30:37,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:30:37,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:30:37,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:30:37,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:30:37,414 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 07:30:37,415 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:30:37,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:30:37,415 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:30:37,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:30:37,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:30:37,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:30:37,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:30:37,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:30:37,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:30:37,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:30:37,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:30:37,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:30:37,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:30:37,421 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:30:37,421 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:30:37,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:30:37,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:30:37,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2021-11-20 07:30:37,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:30:37,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:30:37,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:30:37,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:30:37,832 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:30:37,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2021-11-20 07:30:37,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/data/d0b855da1/6e997e5c109b49b3b2bf8c08cd45f65c/FLAG7e12dc555 [2021-11-20 07:30:38,714 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:30:38,714 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2021-11-20 07:30:38,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/data/d0b855da1/6e997e5c109b49b3b2bf8c08cd45f65c/FLAG7e12dc555 [2021-11-20 07:30:38,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/data/d0b855da1/6e997e5c109b49b3b2bf8c08cd45f65c [2021-11-20 07:30:38,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:30:38,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:30:38,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:30:38,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:30:38,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:30:38,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:30:38" (1/1) ... [2021-11-20 07:30:38,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b095e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:38, skipping insertion in model container [2021-11-20 07:30:38,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:30:38" (1/1) ... [2021-11-20 07:30:38,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:30:38,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:30:39,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:30:39,762 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:30:39,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:30:39,977 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:30:39,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39 WrapperNode [2021-11-20 07:30:39,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:30:39,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:30:39,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:30:39,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:30:39,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,088 INFO L137 Inliner]: procedures = 365, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2021-11-20 07:30:40,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:30:40,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:30:40,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:30:40,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:30:40,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:30:40,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:30:40,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:30:40,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:30:40,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (1/1) ... [2021-11-20 07:30:40,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:30:40,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:30:40,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:30:40,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:30:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:30:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:30:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:30:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:30:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 07:30:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:30:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:30:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 07:30:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 07:30:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:30:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:30:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:30:40,304 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 07:30:40,526 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:30:40,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:30:40,833 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:30:40,844 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:30:40,845 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:30:40,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:30:40 BoogieIcfgContainer [2021-11-20 07:30:40,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:30:40,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:30:40,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:30:40,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:30:40,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:30:38" (1/3) ... [2021-11-20 07:30:40,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5465c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:30:40, skipping insertion in model container [2021-11-20 07:30:40,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:30:39" (2/3) ... [2021-11-20 07:30:40,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5465c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:30:40, skipping insertion in model container [2021-11-20 07:30:40,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:30:40" (3/3) ... [2021-11-20 07:30:40,858 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2021-11-20 07:30:40,863 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 07:30:40,864 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:30:40,864 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-20 07:30:40,864 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 07:30:40,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,903 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,903 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,904 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,905 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,929 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,929 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,929 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,929 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,930 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:30:40,935 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 07:30:40,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:30:41,007 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:30:41,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-20 07:30:41,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 107 transitions, 219 flow [2021-11-20 07:30:41,093 INFO L129 PetriNetUnfolder]: 0/106 cut-off events. [2021-11-20 07:30:41,094 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:30:41,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 0/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-11-20 07:30:41,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 107 transitions, 219 flow [2021-11-20 07:30:41,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 106 transitions, 215 flow [2021-11-20 07:30:41,117 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-11-20 07:30:41,117 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:30:41,117 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:41,118 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:41,119 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:41,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:41,126 INFO L85 PathProgramCache]: Analyzing trace with hash 670265562, now seen corresponding path program 1 times [2021-11-20 07:30:41,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:41,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146449332] [2021-11-20 07:30:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:41,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:41,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:41,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146449332] [2021-11-20 07:30:41,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146449332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:41,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:41,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:30:41,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852388181] [2021-11-20 07:30:41,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:41,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:30:41,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:41,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:30:41,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:30:41,553 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 107 [2021-11-20 07:30:41,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 106 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:41,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:41,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 107 [2021-11-20 07:30:41,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:41,806 INFO L129 PetriNetUnfolder]: 18/282 cut-off events. [2021-11-20 07:30:41,806 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 07:30:41,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 282 events. 18/282 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1112 event pairs, 18 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 284. Up to 53 conditions per place. [2021-11-20 07:30:41,818 INFO L132 encePairwiseOnDemand]: 104/107 looper letters, 16 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2021-11-20 07:30:41,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 105 transitions, 249 flow [2021-11-20 07:30:41,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:30:41,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 07:30:41,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2021-11-20 07:30:41,844 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.881619937694704 [2021-11-20 07:30:41,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2021-11-20 07:30:41,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2021-11-20 07:30:41,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:41,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2021-11-20 07:30:41,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:41,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:41,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:41,872 INFO L186 Difference]: Start difference. First operand has 110 places, 106 transitions, 215 flow. Second operand 3 states and 283 transitions. [2021-11-20 07:30:41,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 105 transitions, 249 flow [2021-11-20 07:30:41,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 105 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 07:30:41,884 INFO L242 Difference]: Finished difference. Result has 110 places, 105 transitions, 216 flow [2021-11-20 07:30:41,887 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=110, PETRI_TRANSITIONS=105} [2021-11-20 07:30:41,892 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 0 predicate places. [2021-11-20 07:30:41,892 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 105 transitions, 216 flow [2021-11-20 07:30:41,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:41,893 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:41,893 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:41,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:30:41,894 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:41,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:41,895 INFO L85 PathProgramCache]: Analyzing trace with hash 756627061, now seen corresponding path program 1 times [2021-11-20 07:30:41,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:41,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287594077] [2021-11-20 07:30:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:41,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:42,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:42,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287594077] [2021-11-20 07:30:42,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287594077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:42,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:42,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:30:42,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771859225] [2021-11-20 07:30:42,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:42,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:30:42,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:42,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:30:42,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:30:42,052 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2021-11-20 07:30:42,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 105 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:42,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:42,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2021-11-20 07:30:42,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:42,174 INFO L129 PetriNetUnfolder]: 8/222 cut-off events. [2021-11-20 07:30:42,175 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 07:30:42,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 222 events. 8/222 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 704 event pairs, 8 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 214. Up to 25 conditions per place. [2021-11-20 07:30:42,180 INFO L132 encePairwiseOnDemand]: 102/107 looper letters, 10 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2021-11-20 07:30:42,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 101 transitions, 230 flow [2021-11-20 07:30:42,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:30:42,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 07:30:42,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2021-11-20 07:30:42,187 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.897196261682243 [2021-11-20 07:30:42,188 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2021-11-20 07:30:42,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2021-11-20 07:30:42,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:42,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2021-11-20 07:30:42,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:42,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:42,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:42,200 INFO L186 Difference]: Start difference. First operand has 110 places, 105 transitions, 216 flow. Second operand 3 states and 288 transitions. [2021-11-20 07:30:42,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 101 transitions, 230 flow [2021-11-20 07:30:42,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 07:30:42,210 INFO L242 Difference]: Finished difference. Result has 106 places, 101 transitions, 206 flow [2021-11-20 07:30:42,211 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2021-11-20 07:30:42,212 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, -4 predicate places. [2021-11-20 07:30:42,212 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 206 flow [2021-11-20 07:30:42,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:42,214 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:42,214 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:42,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:30:42,215 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:42,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:42,216 INFO L85 PathProgramCache]: Analyzing trace with hash 829589289, now seen corresponding path program 1 times [2021-11-20 07:30:42,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:42,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558537066] [2021-11-20 07:30:42,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:42,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:42,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:42,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558537066] [2021-11-20 07:30:42,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558537066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:42,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:42,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:30:42,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783972518] [2021-11-20 07:30:42,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:42,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:30:42,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:42,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:30:42,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:30:42,584 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2021-11-20 07:30:42,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:42,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:42,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2021-11-20 07:30:42,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:43,220 INFO L129 PetriNetUnfolder]: 302/920 cut-off events. [2021-11-20 07:30:43,221 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:30:43,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 920 events. 302/920 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5103 event pairs, 143 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 1527. Up to 452 conditions per place. [2021-11-20 07:30:43,239 INFO L132 encePairwiseOnDemand]: 91/107 looper letters, 64 selfloop transitions, 41 changer transitions 0/173 dead transitions. [2021-11-20 07:30:43,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 173 transitions, 560 flow [2021-11-20 07:30:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:30:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:30:43,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2021-11-20 07:30:43,243 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8566978193146417 [2021-11-20 07:30:43,244 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 550 transitions. [2021-11-20 07:30:43,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 550 transitions. [2021-11-20 07:30:43,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:43,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 550 transitions. [2021-11-20 07:30:43,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:43,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:43,258 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:43,258 INFO L186 Difference]: Start difference. First operand has 106 places, 101 transitions, 206 flow. Second operand 6 states and 550 transitions. [2021-11-20 07:30:43,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 173 transitions, 560 flow [2021-11-20 07:30:43,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 173 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 07:30:43,274 INFO L242 Difference]: Finished difference. Result has 114 places, 143 transitions, 463 flow [2021-11-20 07:30:43,275 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=463, PETRI_PLACES=114, PETRI_TRANSITIONS=143} [2021-11-20 07:30:43,279 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 4 predicate places. [2021-11-20 07:30:43,279 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 143 transitions, 463 flow [2021-11-20 07:30:43,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:43,280 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:43,280 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:43,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:30:43,281 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:43,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:43,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1778397319, now seen corresponding path program 1 times [2021-11-20 07:30:43,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:43,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405704909] [2021-11-20 07:30:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:43,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:43,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:43,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405704909] [2021-11-20 07:30:43,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405704909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:43,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:43,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:30:43,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517611182] [2021-11-20 07:30:43,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:43,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:30:43,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:43,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:30:43,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:30:43,523 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 107 [2021-11-20 07:30:43,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 143 transitions, 463 flow. Second operand has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:43,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:43,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 107 [2021-11-20 07:30:43,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:44,191 INFO L129 PetriNetUnfolder]: 487/1491 cut-off events. [2021-11-20 07:30:44,192 INFO L130 PetriNetUnfolder]: For 428/442 co-relation queries the response was YES. [2021-11-20 07:30:44,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3456 conditions, 1491 events. 487/1491 cut-off events. For 428/442 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9955 event pairs, 40 based on Foata normal form. 24/1432 useless extension candidates. Maximal degree in co-relation 3410. Up to 430 conditions per place. [2021-11-20 07:30:44,210 INFO L132 encePairwiseOnDemand]: 96/107 looper letters, 151 selfloop transitions, 32 changer transitions 0/257 dead transitions. [2021-11-20 07:30:44,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 257 transitions, 1232 flow [2021-11-20 07:30:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:30:44,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:30:44,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2021-11-20 07:30:44,215 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9096573208722741 [2021-11-20 07:30:44,215 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 584 transitions. [2021-11-20 07:30:44,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 584 transitions. [2021-11-20 07:30:44,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:44,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 584 transitions. [2021-11-20 07:30:44,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,223 INFO L186 Difference]: Start difference. First operand has 114 places, 143 transitions, 463 flow. Second operand 6 states and 584 transitions. [2021-11-20 07:30:44,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 257 transitions, 1232 flow [2021-11-20 07:30:44,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 257 transitions, 1232 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 07:30:44,268 INFO L242 Difference]: Finished difference. Result has 124 places, 173 transitions, 765 flow [2021-11-20 07:30:44,269 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=765, PETRI_PLACES=124, PETRI_TRANSITIONS=173} [2021-11-20 07:30:44,270 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 14 predicate places. [2021-11-20 07:30:44,270 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 173 transitions, 765 flow [2021-11-20 07:30:44,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,271 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:44,271 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:44,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:30:44,272 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:44,273 INFO L85 PathProgramCache]: Analyzing trace with hash -867665228, now seen corresponding path program 1 times [2021-11-20 07:30:44,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:44,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883069783] [2021-11-20 07:30:44,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:44,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:44,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:44,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883069783] [2021-11-20 07:30:44,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883069783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:44,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:44,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:30:44,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028505841] [2021-11-20 07:30:44,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:44,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:30:44,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:44,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:30:44,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:30:44,330 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 107 [2021-11-20 07:30:44,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 173 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:44,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 107 [2021-11-20 07:30:44,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:44,401 INFO L129 PetriNetUnfolder]: 39/294 cut-off events. [2021-11-20 07:30:44,401 INFO L130 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2021-11-20 07:30:44,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 294 events. 39/294 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 981 event pairs, 4 based on Foata normal form. 2/282 useless extension candidates. Maximal degree in co-relation 487. Up to 64 conditions per place. [2021-11-20 07:30:44,404 INFO L132 encePairwiseOnDemand]: 103/107 looper letters, 7 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2021-11-20 07:30:44,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 122 transitions, 409 flow [2021-11-20 07:30:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:30:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 07:30:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2021-11-20 07:30:44,407 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9376947040498442 [2021-11-20 07:30:44,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2021-11-20 07:30:44,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2021-11-20 07:30:44,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:44,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2021-11-20 07:30:44,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,412 INFO L186 Difference]: Start difference. First operand has 124 places, 173 transitions, 765 flow. Second operand 3 states and 301 transitions. [2021-11-20 07:30:44,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 122 transitions, 409 flow [2021-11-20 07:30:44,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 122 transitions, 367 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-11-20 07:30:44,419 INFO L242 Difference]: Finished difference. Result has 117 places, 122 transitions, 353 flow [2021-11-20 07:30:44,420 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=117, PETRI_TRANSITIONS=122} [2021-11-20 07:30:44,421 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 7 predicate places. [2021-11-20 07:30:44,421 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 122 transitions, 353 flow [2021-11-20 07:30:44,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,422 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:44,422 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:44,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:30:44,422 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:44,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:44,423 INFO L85 PathProgramCache]: Analyzing trace with hash -504654480, now seen corresponding path program 1 times [2021-11-20 07:30:44,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:44,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447482228] [2021-11-20 07:30:44,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:44,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:44,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:44,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447482228] [2021-11-20 07:30:44,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447482228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:44,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:44,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:30:44,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170330565] [2021-11-20 07:30:44,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:44,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:30:44,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:44,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:30:44,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:30:44,626 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2021-11-20 07:30:44,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 122 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:44,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:44,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2021-11-20 07:30:44,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:45,100 INFO L129 PetriNetUnfolder]: 157/666 cut-off events. [2021-11-20 07:30:45,100 INFO L130 PetriNetUnfolder]: For 144/168 co-relation queries the response was YES. [2021-11-20 07:30:45,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 666 events. 157/666 cut-off events. For 144/168 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3533 event pairs, 22 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 1328. Up to 262 conditions per place. [2021-11-20 07:30:45,108 INFO L132 encePairwiseOnDemand]: 93/107 looper letters, 57 selfloop transitions, 47 changer transitions 4/181 dead transitions. [2021-11-20 07:30:45,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 181 transitions, 780 flow [2021-11-20 07:30:45,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:30:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:30:45,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2021-11-20 07:30:45,112 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8551401869158879 [2021-11-20 07:30:45,112 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 549 transitions. [2021-11-20 07:30:45,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 549 transitions. [2021-11-20 07:30:45,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:45,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 549 transitions. [2021-11-20 07:30:45,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,119 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,119 INFO L186 Difference]: Start difference. First operand has 117 places, 122 transitions, 353 flow. Second operand 6 states and 549 transitions. [2021-11-20 07:30:45,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 181 transitions, 780 flow [2021-11-20 07:30:45,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 181 transitions, 776 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 07:30:45,131 INFO L242 Difference]: Finished difference. Result has 126 places, 164 transitions, 730 flow [2021-11-20 07:30:45,132 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=126, PETRI_TRANSITIONS=164} [2021-11-20 07:30:45,135 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 16 predicate places. [2021-11-20 07:30:45,136 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 164 transitions, 730 flow [2021-11-20 07:30:45,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,136 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:45,137 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:45,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:30:45,137 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:45,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:45,139 INFO L85 PathProgramCache]: Analyzing trace with hash 219767215, now seen corresponding path program 1 times [2021-11-20 07:30:45,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:45,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564410602] [2021-11-20 07:30:45,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:45,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:45,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:45,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564410602] [2021-11-20 07:30:45,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564410602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:45,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:45,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:30:45,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409621654] [2021-11-20 07:30:45,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:45,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:30:45,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:45,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:30:45,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:30:45,349 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2021-11-20 07:30:45,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 164 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:45,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2021-11-20 07:30:45,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:45,797 INFO L129 PetriNetUnfolder]: 207/813 cut-off events. [2021-11-20 07:30:45,797 INFO L130 PetriNetUnfolder]: For 462/462 co-relation queries the response was YES. [2021-11-20 07:30:45,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2174 conditions, 813 events. 207/813 cut-off events. For 462/462 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4537 event pairs, 34 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 2121. Up to 425 conditions per place. [2021-11-20 07:30:45,820 INFO L132 encePairwiseOnDemand]: 96/107 looper letters, 90 selfloop transitions, 26 changer transitions 15/200 dead transitions. [2021-11-20 07:30:45,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 200 transitions, 1198 flow [2021-11-20 07:30:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:30:45,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:30:45,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2021-11-20 07:30:45,824 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7881619937694704 [2021-11-20 07:30:45,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2021-11-20 07:30:45,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2021-11-20 07:30:45,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:45,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2021-11-20 07:30:45,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,831 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,831 INFO L186 Difference]: Start difference. First operand has 126 places, 164 transitions, 730 flow. Second operand 6 states and 506 transitions. [2021-11-20 07:30:45,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 200 transitions, 1198 flow [2021-11-20 07:30:45,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 200 transitions, 1180 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-11-20 07:30:45,847 INFO L242 Difference]: Finished difference. Result has 136 places, 181 transitions, 931 flow [2021-11-20 07:30:45,848 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=931, PETRI_PLACES=136, PETRI_TRANSITIONS=181} [2021-11-20 07:30:45,849 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 26 predicate places. [2021-11-20 07:30:45,849 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 181 transitions, 931 flow [2021-11-20 07:30:45,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:45,851 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:45,851 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:45,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:30:45,852 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:45,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:45,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1328316898, now seen corresponding path program 1 times [2021-11-20 07:30:45,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:45,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330352086] [2021-11-20 07:30:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:45,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:46,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:46,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330352086] [2021-11-20 07:30:46,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330352086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:46,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:46,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 07:30:46,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089765026] [2021-11-20 07:30:46,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:46,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:30:46,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:46,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:30:46,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:30:46,519 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 107 [2021-11-20 07:30:46,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 181 transitions, 931 flow. Second operand has 10 states, 10 states have (on average 71.3) internal successors, (713), 10 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:46,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:46,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 107 [2021-11-20 07:30:46,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:46,994 INFO L129 PetriNetUnfolder]: 198/760 cut-off events. [2021-11-20 07:30:46,994 INFO L130 PetriNetUnfolder]: For 599/603 co-relation queries the response was YES. [2021-11-20 07:30:46,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2319 conditions, 760 events. 198/760 cut-off events. For 599/603 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4160 event pairs, 35 based on Foata normal form. 11/766 useless extension candidates. Maximal degree in co-relation 2257. Up to 294 conditions per place. [2021-11-20 07:30:47,004 INFO L132 encePairwiseOnDemand]: 97/107 looper letters, 118 selfloop transitions, 29 changer transitions 8/219 dead transitions. [2021-11-20 07:30:47,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 219 transitions, 1509 flow [2021-11-20 07:30:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:30:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 07:30:47,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 686 transitions. [2021-11-20 07:30:47,008 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7123572170301142 [2021-11-20 07:30:47,008 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 686 transitions. [2021-11-20 07:30:47,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 686 transitions. [2021-11-20 07:30:47,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:47,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 686 transitions. [2021-11-20 07:30:47,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.22222222222223) internal successors, (686), 9 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:47,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:47,017 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:47,017 INFO L186 Difference]: Start difference. First operand has 136 places, 181 transitions, 931 flow. Second operand 9 states and 686 transitions. [2021-11-20 07:30:47,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 219 transitions, 1509 flow [2021-11-20 07:30:47,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 219 transitions, 1443 flow, removed 25 selfloop flow, removed 2 redundant places. [2021-11-20 07:30:47,039 INFO L242 Difference]: Finished difference. Result has 141 places, 180 transitions, 919 flow [2021-11-20 07:30:47,039 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=919, PETRI_PLACES=141, PETRI_TRANSITIONS=180} [2021-11-20 07:30:47,040 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 31 predicate places. [2021-11-20 07:30:47,041 INFO L470 AbstractCegarLoop]: Abstraction has has 141 places, 180 transitions, 919 flow [2021-11-20 07:30:47,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 71.3) internal successors, (713), 10 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:47,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:47,042 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:47,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:30:47,042 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:47,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:47,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1901123288, now seen corresponding path program 1 times [2021-11-20 07:30:47,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:47,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924560468] [2021-11-20 07:30:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:47,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:47,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:47,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924560468] [2021-11-20 07:30:47,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924560468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:47,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:47,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 07:30:47,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273415753] [2021-11-20 07:30:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:47,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:30:47,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:47,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:30:47,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:30:47,526 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2021-11-20 07:30:47,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 180 transitions, 919 flow. Second operand has 10 states, 10 states have (on average 73.2) internal successors, (732), 10 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:47,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:30:47,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2021-11-20 07:30:47,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:30:48,246 INFO L129 PetriNetUnfolder]: 221/849 cut-off events. [2021-11-20 07:30:48,247 INFO L130 PetriNetUnfolder]: For 835/839 co-relation queries the response was YES. [2021-11-20 07:30:48,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2641 conditions, 849 events. 221/849 cut-off events. For 835/839 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4952 event pairs, 24 based on Foata normal form. 19/867 useless extension candidates. Maximal degree in co-relation 2577. Up to 161 conditions per place. [2021-11-20 07:30:48,257 INFO L132 encePairwiseOnDemand]: 92/107 looper letters, 127 selfloop transitions, 58 changer transitions 6/258 dead transitions. [2021-11-20 07:30:48,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 258 transitions, 1811 flow [2021-11-20 07:30:48,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:30:48,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 07:30:48,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 742 transitions. [2021-11-20 07:30:48,263 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.770508826583593 [2021-11-20 07:30:48,263 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 742 transitions. [2021-11-20 07:30:48,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 742 transitions. [2021-11-20 07:30:48,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:30:48,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 742 transitions. [2021-11-20 07:30:48,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.44444444444444) internal successors, (742), 9 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:48,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:48,273 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:48,273 INFO L186 Difference]: Start difference. First operand has 141 places, 180 transitions, 919 flow. Second operand 9 states and 742 transitions. [2021-11-20 07:30:48,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 258 transitions, 1811 flow [2021-11-20 07:30:48,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 258 transitions, 1713 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-11-20 07:30:48,297 INFO L242 Difference]: Finished difference. Result has 145 places, 197 transitions, 1203 flow [2021-11-20 07:30:48,298 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1203, PETRI_PLACES=145, PETRI_TRANSITIONS=197} [2021-11-20 07:30:48,299 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 35 predicate places. [2021-11-20 07:30:48,300 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 197 transitions, 1203 flow [2021-11-20 07:30:48,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 73.2) internal successors, (732), 10 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:30:48,301 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:30:48,301 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:48,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:30:48,302 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2021-11-20 07:30:48,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1493032828, now seen corresponding path program 1 times [2021-11-20 07:30:48,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:48,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011970867] [2021-11-20 07:30:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:48,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:30:48,342 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:30:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:30:48,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:30:48,425 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:30:48,427 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2021-11-20 07:30:48,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2021-11-20 07:30:48,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2021-11-20 07:30:48,433 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2021-11-20 07:30:48,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2021-11-20 07:30:48,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (8 of 14 remaining) [2021-11-20 07:30:48,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2021-11-20 07:30:48,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2021-11-20 07:30:48,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2021-11-20 07:30:48,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2021-11-20 07:30:48,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2021-11-20 07:30:48,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2021-11-20 07:30:48,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2021-11-20 07:30:48,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2021-11-20 07:30:48,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 07:30:48,445 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:48,454 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 07:30:48,454 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:30:48,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:30:48 BasicIcfg [2021-11-20 07:30:48,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:30:48,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:30:48,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:30:48,547 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:30:48,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:30:40" (3/4) ... [2021-11-20 07:30:48,551 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:30:48,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:30:48,552 INFO L158 Benchmark]: Toolchain (without parser) took 9702.79ms. Allocated memory was 98.6MB in the beginning and 157.3MB in the end (delta: 58.7MB). Free memory was 58.7MB in the beginning and 68.7MB in the end (delta: -10.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-20 07:30:48,552 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:30:48,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1126.80ms. Allocated memory is still 98.6MB. Free memory was 58.5MB in the beginning and 46.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 07:30:48,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.66ms. Allocated memory is still 98.6MB. Free memory was 46.9MB in the beginning and 44.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:30:48,554 INFO L158 Benchmark]: Boogie Preprocessor took 83.41ms. Allocated memory is still 98.6MB. Free memory was 44.4MB in the beginning and 42.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:30:48,554 INFO L158 Benchmark]: RCFGBuilder took 673.37ms. Allocated memory is still 98.6MB. Free memory was 42.7MB in the beginning and 65.9MB in the end (delta: -23.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-11-20 07:30:48,555 INFO L158 Benchmark]: TraceAbstraction took 7696.48ms. Allocated memory was 98.6MB in the beginning and 157.3MB in the end (delta: 58.7MB). Free memory was 65.3MB in the beginning and 69.8MB in the end (delta: -4.4MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2021-11-20 07:30:48,555 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 157.3MB. Free memory was 69.8MB in the beginning and 68.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:30:48,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1126.80ms. Allocated memory is still 98.6MB. Free memory was 58.5MB in the beginning and 46.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.66ms. Allocated memory is still 98.6MB. Free memory was 46.9MB in the beginning and 44.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.41ms. Allocated memory is still 98.6MB. Free memory was 44.4MB in the beginning and 42.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 673.37ms. Allocated memory is still 98.6MB. Free memory was 42.7MB in the beginning and 65.9MB in the end (delta: -23.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7696.48ms. Allocated memory was 98.6MB in the beginning and 157.3MB in the end (delta: 58.7MB). Free memory was 65.3MB in the beginning and 69.8MB in the end (delta: -4.4MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 157.3MB. Free memory was 69.8MB in the beginning and 68.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; VAL [d={0:0}] [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [d={0:0}, m={3:0}] [L1237] 0 pthread_t id; VAL [d={0:0}, id={9:0}, m={3:0}] [L1238] 0 data *z; VAL [d={0:0}, id={9:0}, m={3:0}] [L1239] 0 d = malloc(sizeof(data)) VAL [d={-2:0}, d = malloc(sizeof(data))=105, id={9:0}, m={3:0}, malloc(sizeof(data))={-2:0}] [L1240] 0 z = d VAL [d={-2:0}, id={9:0}, m={3:0}, z={-2:0}] [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, d={-2:0}, d->x=104, id={9:0}, m={3:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) VAL [arg={0:0}, d={-2:0}, d->x=104, id={9:0}, m={3:0}, z={-2:0}] [L1231] EXPR 1 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x = 3=101, m={3:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x = 3=101, id={9:0}, m={3:0}, z={-2:0}, z->y=102] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1232] EXPR 1 d->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=103, m={3:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=103, id={9:0}, m={3:0}, z={-2:0}, z->y=102] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->y = 8 [1232] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: 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, 14 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: 7.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217 mSDsluCounter, 159 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 179 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1412 IncrementalHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 179 mSolverCounterUnsat, 138 mSDtfsCounter, 1412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1203occurred in iteration=9, InterpolantAutomatonStates: 51, 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, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 596 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 505 ConstructedInterpolants, 0 QuantifiedInterpolants, 2077 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 07:30:48,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82bcc8-9322-482a-82a5-4a9808d48f3d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE