./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 --- 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-5e519f3 [2022-11-03 02:44:23,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:44:23,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:44:24,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:44:24,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:44:24,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:44:24,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:44:24,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:44:24,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:44:24,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:44:24,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:44:24,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:44:24,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:44:24,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:44:24,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:44:24,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:44:24,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:44:24,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:44:24,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:44:24,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:44:24,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:44:24,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:44:24,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:44:24,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:44:24,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:44:24,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:44:24,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:44:24,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:44:24,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:44:24,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:44:24,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:44:24,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:44:24,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:44:24,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:44:24,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:44:24,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:44:24,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:44:24,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:44:24,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:44:24,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:44:24,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:44:24,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:44:24,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:44:24,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:44:24,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:44:24,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:44:24,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:44:24,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:44:24,139 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:44:24,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:44:24,140 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:44:24,140 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:44:24,140 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:44:24,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:44:24,141 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:44:24,141 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:44:24,142 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:44:24,142 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:44:24,142 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:44:24,143 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:44:24,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:44:24,144 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:44:24,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:44:24,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:44:24,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:44:24,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:44:24,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:44:24,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:44:24,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:44:24,148 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:44:24,149 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:44:24,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:44:24,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:44:24,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:44:24,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:44:24,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:44:24,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:44:24,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:44:24,154 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:44:24,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:44:24,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:44:24,155 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:44:24,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:44:24,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:44:24,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:44:24,156 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_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 [2022-11-03 02:44:24,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:44:24,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:44:24,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:44:24,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:44:24,460 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:44:24,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2022-11-03 02:44:24,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/data/decd210d9/0701b2120e934873ba243ffcdb8d0819/FLAG649d57ad6 [2022-11-03 02:44:24,990 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:44:24,993 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2022-11-03 02:44:25,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/data/decd210d9/0701b2120e934873ba243ffcdb8d0819/FLAG649d57ad6 [2022-11-03 02:44:25,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/data/decd210d9/0701b2120e934873ba243ffcdb8d0819 [2022-11-03 02:44:25,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:44:25,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:44:25,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:44:25,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:44:25,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:44:25,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:25,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d8f229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25, skipping insertion in model container [2022-11-03 02:44:25,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:25,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:44:25,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:44:25,870 WARN L230 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_3caf767a-8a68-498d-871f-68ad107931cb/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-11-03 02:44:25,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:44:25,889 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:44:25,965 WARN L230 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_3caf767a-8a68-498d-871f-68ad107931cb/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-11-03 02:44:25,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:44:25,986 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:44:25,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25 WrapperNode [2022-11-03 02:44:25,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:44:25,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:44:25,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:44:25,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:44:25,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,122 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1305 [2022-11-03 02:44:26,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:44:26,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:44:26,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:44:26,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:44:26,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,218 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:44:26,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:44:26,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:44:26,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:44:26,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (1/1) ... [2022-11-03 02:44:26,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:44:26,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:44:26,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:44:26,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3caf767a-8a68-498d-871f-68ad107931cb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:44:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:44:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:44:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:44:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:44:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 02:44:26,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 02:44:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 02:44:26,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 02:44:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 02:44:26,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 02:44:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:44:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:44:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:44:26,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:44:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:44:26,336 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:44:26,585 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:44:26,590 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:44:28,696 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:44:28,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:44:28,722 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:44:28,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:44:28 BoogieIcfgContainer [2022-11-03 02:44:28,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:44:28,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:44:28,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:44:28,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:44:28,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:44:25" (1/3) ... [2022-11-03 02:44:28,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba223d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:44:28, skipping insertion in model container [2022-11-03 02:44:28,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:25" (2/3) ... [2022-11-03 02:44:28,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba223d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:44:28, skipping insertion in model container [2022-11-03 02:44:28,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:44:28" (3/3) ... [2022-11-03 02:44:28,738 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2022-11-03 02:44:28,752 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:44:28,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:44:28,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 228 error locations. [2022-11-03 02:44:28,764 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:44:29,089 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-03 02:44:29,166 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:44:29,180 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1656 places, 1757 transitions, 3538 flow [2022-11-03 02:44:29,183 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 1656 places, 1757 transitions, 3538 flow [2022-11-03 02:44:29,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1656 places, 1757 transitions, 3538 flow [2022-11-03 02:44:31,122 INFO L130 PetriNetUnfolder]: 111/1754 cut-off events. [2022-11-03 02:44:31,123 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-03 02:44:31,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 1754 events. 111/1754 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7784 event pairs, 0 based on Foata normal form. 0/1415 useless extension candidates. Maximal degree in co-relation 1382. Up to 2 conditions per place. [2022-11-03 02:44:31,626 INFO L118 LiptonReduction]: Number of co-enabled transitions 1285350 [2022-11-03 02:45:33,284 INFO L133 LiptonReduction]: Checked pairs total: 2009761 [2022-11-03 02:45:33,285 INFO L135 LiptonReduction]: Total number of compositions: 2363 [2022-11-03 02:45:33,299 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 384 places, 422 transitions, 868 flow