./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:46:47,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:46:47,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:46:47,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:46:47,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:46:47,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:46:47,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:46:47,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:46:47,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:46:47,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:46:47,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:46:47,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:46:47,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:46:47,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:46:47,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:46:47,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:46:47,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:46:47,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:46:47,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:46:47,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:46:47,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:46:47,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:46:47,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:46:47,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:46:47,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:46:47,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:46:47,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:46:47,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:46:47,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:46:47,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:46:47,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:46:47,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:46:47,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:46:47,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:46:47,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:46:47,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:46:47,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:46:47,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:46:47,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:46:47,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:46:47,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:46:47,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:46:47,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:46:47,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:46:47,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:46:47,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:46:47,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:46:47,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:46:47,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:46:47,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:46:47,429 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:46:47,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:46:47,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:46:47,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:46:47,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:46:47,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:46:47,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:46:47,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:46:47,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:46:47,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:46:47,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:46:47,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:46:47,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:46:47,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:46:47,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:46:47,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:46:47,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:46:47,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:46:47,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:46:47,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:46:47,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:46:47,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:46:47,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:46:47,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:46:47,433 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:46:47,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:46:47,434 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:46:47,434 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b [2022-12-13 21:46:47,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:46:47,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:46:47,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:46:47,641 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:46:47,641 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:46:47,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2022-12-13 21:46:50,135 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:46:50,316 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:46:50,316 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2022-12-13 21:46:50,325 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/data/cb2d66cfe/cca134934091427782eb8c12e4f692df/FLAGdd400eb25 [2022-12-13 21:46:50,691 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/data/cb2d66cfe/cca134934091427782eb8c12e4f692df [2022-12-13 21:46:50,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:46:50,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:46:50,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:46:50,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:46:50,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:46:50,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:50,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbb2c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50, skipping insertion in model container [2022-12-13 21:46:50,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:50,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:46:50,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:46:50,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i[30176,30189] [2022-12-13 21:46:50,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:46:50,942 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:46:50,965 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i[30176,30189] [2022-12-13 21:46:50,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:46:50,995 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:46:50,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50 WrapperNode [2022-12-13 21:46:50,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:46:50,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:46:50,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:46:50,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:46:51,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,029 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 200 [2022-12-13 21:46:51,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:46:51,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:46:51,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:46:51,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:46:51,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,049 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:46:51,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:46:51,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:46:51,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:46:51,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (1/1) ... [2022-12-13 21:46:51,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:46:51,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:46:51,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:46:51,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb4eeff-88fa-48b9-b43f-dce155ff4601/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:46:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:46:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-13 21:46:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-13 21:46:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:46:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:46:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:46:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:46:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-12-13 21:46:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-12-13 21:46:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:46:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:46:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:46:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:46:51,115 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:46:51,229 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:46:51,231 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:46:51,466 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:46:51,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:46:51,473 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-12-13 21:46:51,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:46:51 BoogieIcfgContainer [2022-12-13 21:46:51,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:46:51,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:46:51,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:46:51,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:46:51,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:46:50" (1/3) ... [2022-12-13 21:46:51,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3072acd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:46:51, skipping insertion in model container [2022-12-13 21:46:51,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:50" (2/3) ... [2022-12-13 21:46:51,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3072acd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:46:51, skipping insertion in model container [2022-12-13 21:46:51,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:46:51" (3/3) ... [2022-12-13 21:46:51,481 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2022-12-13 21:46:51,487 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:46:51,495 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:46:51,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 21:46:51,496 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:46:51,590 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 21:46:51,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 210 transitions, 442 flow [2022-12-13 21:46:51,756 INFO L130 PetriNetUnfolder]: 58/374 cut-off events. [2022-12-13 21:46:51,756 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-12-13 21:46:51,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 374 events. 58/374 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1570 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 197. Up to 8 conditions per place. [2022-12-13 21:46:51,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 210 transitions, 442 flow [2022-12-13 21:46:51,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 210 transitions, 442 flow [2022-12-13 21:46:51,777 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:46:51,788 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 210 transitions, 442 flow [2022-12-13 21:46:51,790 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 210 transitions, 442 flow [2022-12-13 21:46:51,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 210 transitions, 442 flow [2022-12-13 21:46:51,852 INFO L130 PetriNetUnfolder]: 58/374 cut-off events. [2022-12-13 21:46:51,853 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-12-13 21:46:51,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 374 events. 58/374 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1570 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 197. Up to 8 conditions per place. [2022-12-13 21:46:51,862 INFO L119 LiptonReduction]: Number of co-enabled transitions 17328 [2022-12-13 21:46:54,593 INFO L134 LiptonReduction]: Checked pairs total: 30528 [2022-12-13 21:46:54,593 INFO L136 LiptonReduction]: Total number of compositions: 159 [2022-12-13 21:46:54,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:46:54,609 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@321569a0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:46:54,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 21:46:54,613 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2022-12-13 21:46:54,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:46:54,614 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:46:54,614 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 21:46:54,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 21:46:54,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:46:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash -661117708, now seen corresponding path program 1 times [2022-12-13 21:46:54,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:46:54,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239392213] [2022-12-13 21:46:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:46:54,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:46:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:46:54,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:46:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:46:54,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:46:54,769 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:46:54,770 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-12-13 21:46:54,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-13 21:46:54,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-13 21:46:54,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-12-13 21:46:54,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-13 21:46:54,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-13 21:46:54,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:46:54,774 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 21:46:54,777 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 21:46:54,777 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 21:46:54,818 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-13 21:46:54,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 330 transitions, 708 flow [2022-12-13 21:46:54,973 INFO L130 PetriNetUnfolder]: 197/1089 cut-off events. [2022-12-13 21:46:54,973 INFO L131 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-12-13 21:46:54,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1089 events. 197/1089 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6397 event pairs, 1 based on Foata normal form. 0/897 useless extension candidates. Maximal degree in co-relation 673. Up to 32 conditions per place. [2022-12-13 21:46:54,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 279 places, 330 transitions, 708 flow [2022-12-13 21:46:54,991 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 330 transitions, 708 flow [2022-12-13 21:46:54,991 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:46:54,991 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 279 places, 330 transitions, 708 flow [2022-12-13 21:46:54,992 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 279 places, 330 transitions, 708 flow [2022-12-13 21:46:54,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 330 transitions, 708 flow [2022-12-13 21:46:55,131 INFO L130 PetriNetUnfolder]: 197/1089 cut-off events. [2022-12-13 21:46:55,131 INFO L131 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-12-13 21:46:55,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1089 events. 197/1089 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6397 event pairs, 1 based on Foata normal form. 0/897 useless extension candidates. Maximal degree in co-relation 673. Up to 32 conditions per place. [2022-12-13 21:46:55,176 INFO L119 LiptonReduction]: Number of co-enabled transitions 62928 [2022-12-13 21:46:58,288 INFO L134 LiptonReduction]: Checked pairs total: 129365 [2022-12-13 21:46:58,289 INFO L136 LiptonReduction]: Total number of compositions: 240 [2022-12-13 21:46:58,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:46:58,291 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@321569a0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:46:58,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 21:46:58,293 INFO L130 PetriNetUnfolder]: 4/35 cut-off events. [2022-12-13 21:46:58,293 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:46:58,294 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:46:58,294 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:46:58,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-12-13 21:46:58,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:46:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash 37577668, now seen corresponding path program 1 times [2022-12-13 21:46:58,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:46:58,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653100426] [2022-12-13 21:46:58,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:46:58,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:46:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:46:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:46:58,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:46:58,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653100426] [2022-12-13 21:46:58,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653100426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:46:58,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:46:58,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:46:58,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473230226] [2022-12-13 21:46:58,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:46:58,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:46:58,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:46:58,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:46:58,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:46:58,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 570 [2022-12-13 21:46:58,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 144 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 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) [2022-12-13 21:46:58,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:46:58,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 570 [2022-12-13 21:46:58,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand