./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9 --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 a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f --- 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-6b4ec56 [2022-11-20 21:14:05,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:14:05,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:14:05,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:14:05,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:14:05,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:14:05,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:14:05,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:14:05,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:14:05,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:14:05,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:14:05,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:14:05,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:14:05,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:14:05,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:14:05,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:14:05,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:14:05,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:14:05,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:14:05,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:14:05,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:14:05,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:14:05,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:14:05,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:14:05,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:14:05,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:14:05,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:14:05,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:14:05,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:14:05,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:14:05,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:14:05,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:14:05,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:14:05,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:14:05,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:14:05,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:14:05,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:14:05,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:14:05,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:14:05,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:14:05,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:14:05,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-20 21:14:05,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:14:05,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:14:05,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:14:05,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:14:05,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:14:05,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:14:05,286 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:14:05,287 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:14:05,287 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:14:05,287 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:14:05,288 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:14:05,288 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:14:05,288 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:14:05,288 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:14:05,288 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:14:05,289 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:14:05,289 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:14:05,289 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:14:05,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:14:05,290 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:14:05,290 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 21:14:05,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:14:05,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:14:05,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:14:05,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:14:05,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:14:05,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:14:05,291 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 21:14:05,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:14:05,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:14:05,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:14:05,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:14:05,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:14:05,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:14:05,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:14:05,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:14:05,294 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:14:05,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:14:05,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:14:05,295 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:14:05,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:14:05,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:14:05,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:14:05,295 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_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f [2022-11-20 21:14:05,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:14:05,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:14:05,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:14:05,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:14:05,657 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:14:05,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-20 21:14:08,678 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:14:08,916 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:14:08,916 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-20 21:14:08,924 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/data/8bf2fbfa4/6970e8837ba94df89b3ec30115a04126/FLAG1579db2b1 [2022-11-20 21:14:08,942 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/data/8bf2fbfa4/6970e8837ba94df89b3ec30115a04126 [2022-11-20 21:14:08,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:14:08,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:14:08,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:14:08,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:14:08,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:14:08,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:14:08" (1/1) ... [2022-11-20 21:14:08,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f1b2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:08, skipping insertion in model container [2022-11-20 21:14:08,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:14:08" (1/1) ... [2022-11-20 21:14:08,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:14:08,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:14:09,369 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_4864e344-31f7-4b43-9023-d54f186256e3/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-20 21:14:09,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:14:09,399 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:14:09,468 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_4864e344-31f7-4b43-9023-d54f186256e3/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-20 21:14:09,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:14:09,496 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:14:09,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09 WrapperNode [2022-11-20 21:14:09,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:14:09,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:14:09,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:14:09,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:14:09,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,584 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 266 [2022-11-20 21:14:09,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:14:09,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:14:09,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:14:09,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:14:09,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:14:09,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:14:09,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:14:09,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:14:09,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (1/1) ... [2022-11-20 21:14:09,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:14:09,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:14:09,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:14:09,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4864e344-31f7-4b43-9023-d54f186256e3/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:14:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:14:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:14:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:14:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 21:14:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 21:14:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 21:14:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 21:14:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 21:14:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 21:14:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 21:14:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 21:14:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 21:14:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:14:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-20 21:14:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-20 21:14:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 21:14:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 21:14:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 21:14:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:14:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:14:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:14:09,732 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 21:14:09,896 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:14:09,906 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:14:10,699 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:14:11,151 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:14:11,151 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 21:14:11,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:14:11 BoogieIcfgContainer [2022-11-20 21:14:11,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:14:11,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:14:11,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:14:11,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:14:11,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:14:08" (1/3) ... [2022-11-20 21:14:11,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a54b3ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:14:11, skipping insertion in model container [2022-11-20 21:14:11,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:14:09" (2/3) ... [2022-11-20 21:14:11,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a54b3ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:14:11, skipping insertion in model container [2022-11-20 21:14:11,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:14:11" (3/3) ... [2022-11-20 21:14:11,168 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2022-11-20 21:14:11,179 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 21:14:11,190 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:14:11,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2022-11-20 21:14:11,191 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 21:14:11,323 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-20 21:14:11,375 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 21:14:11,396 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 303 places, 301 transitions, 642 flow [2022-11-20 21:14:11,401 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 303 places, 301 transitions, 642 flow [2022-11-20 21:14:11,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 303 places, 301 transitions, 642 flow [2022-11-20 21:14:11,581 INFO L130 PetriNetUnfolder]: 14/296 cut-off events. [2022-11-20 21:14:11,581 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 21:14:11,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 296 events. 14/296 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 419 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 221. Up to 2 conditions per place. [2022-11-20 21:14:11,599 INFO L119 LiptonReduction]: Number of co-enabled transitions 14642 [2022-11-20 21:17:27,729 INFO L134 LiptonReduction]: Checked pairs total: 50140 [2022-11-20 21:17:27,729 INFO L136 LiptonReduction]: Total number of compositions: 295 [2022-11-20 21:17:27,737 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131 places, 124 transitions, 288 flow