./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --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_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/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_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/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_f7452692-bb33-461c-8ee5-0609efde1c60/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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- 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 20:11:29,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:11:29,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:11:29,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:11:29,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:11:29,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:11:29,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:11:29,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:11:29,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:11:29,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:11:29,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:11:29,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:11:29,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:11:29,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:11:29,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:11:29,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:11:29,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:11:29,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:11:29,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:11:29,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:11:29,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:11:29,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:11:29,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:11:29,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:11:29,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:11:29,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:11:29,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:11:29,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:11:29,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:11:29,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:11:29,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:11:29,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:11:29,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:11:29,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:11:29,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:11:29,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:11:29,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:11:29,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:11:29,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:11:29,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:11:29,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:11:29,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-20 20:11:29,179 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:11:29,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:11:29,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:11:29,180 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:11:29,181 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:11:29,181 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:11:29,181 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:11:29,182 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:11:29,182 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:11:29,182 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:11:29,182 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:11:29,186 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:11:29,186 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:11:29,186 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:11:29,186 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:11:29,186 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:11:29,187 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:11:29,187 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:11:29,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:11:29,188 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:11:29,188 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:11:29,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:11:29,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:11:29,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:11:29,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:11:29,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:11:29,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:11:29,189 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 20:11:29,189 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:11:29,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:11:29,190 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:11:29,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:11:29,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:11:29,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:11:29,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:11:29,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:11:29,191 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:11:29,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:11:29,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:11:29,191 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:11:29,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:11:29,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:11:29,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:11:29,192 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_f7452692-bb33-461c-8ee5-0609efde1c60/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2022-11-20 20:11:29,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:11:29,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:11:29,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:11:29,514 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:11:29,518 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:11:29,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-11-20 20:11:32,726 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:11:33,007 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:11:33,009 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-11-20 20:11:33,024 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/data/c8d17ba76/b49185c9a15e4d63ae99423ba1695cf9/FLAGc132505a8 [2022-11-20 20:11:33,046 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/data/c8d17ba76/b49185c9a15e4d63ae99423ba1695cf9 [2022-11-20 20:11:33,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:11:33,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:11:33,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:11:33,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:11:33,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:11:33,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4cc70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33, skipping insertion in model container [2022-11-20 20:11:33,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:11:33,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:11:33,499 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_f7452692-bb33-461c-8ee5-0609efde1c60/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-11-20 20:11:33,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:11:33,567 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:11:33,623 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_f7452692-bb33-461c-8ee5-0609efde1c60/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-11-20 20:11:33,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:11:33,675 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:11:33,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33 WrapperNode [2022-11-20 20:11:33,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:11:33,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:11:33,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:11:33,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:11:33,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,738 INFO L138 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 284 [2022-11-20 20:11:33,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:11:33,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:11:33,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:11:33,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:11:33,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,781 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:11:33,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:11:33,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:11:33,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:11:33,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (1/1) ... [2022-11-20 20:11:33,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:11:33,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:11:33,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:11:33,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7452692-bb33-461c-8ee5-0609efde1c60/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:11:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:11:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-20 20:11:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-20 20:11:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:11:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 20:11:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:11:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:11:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-20 20:11:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-20 20:11:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:11:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:11:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:11:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:11:33,880 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 20:11:34,084 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:11:34,089 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:11:34,738 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:11:34,748 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:11:34,756 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-20 20:11:34,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:11:34 BoogieIcfgContainer [2022-11-20 20:11:34,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:11:34,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:11:34,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:11:34,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:11:34,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:11:33" (1/3) ... [2022-11-20 20:11:34,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78911c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:11:34, skipping insertion in model container [2022-11-20 20:11:34,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:33" (2/3) ... [2022-11-20 20:11:34,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78911c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:11:34, skipping insertion in model container [2022-11-20 20:11:34,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:11:34" (3/3) ... [2022-11-20 20:11:34,774 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2022-11-20 20:11:34,783 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 20:11:34,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:11:34,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-20 20:11:34,796 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 20:11:34,922 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 20:11:34,958 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 20:11:34,974 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 303 transitions, 628 flow [2022-11-20 20:11:34,978 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 303 transitions, 628 flow [2022-11-20 20:11:34,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 303 transitions, 628 flow [2022-11-20 20:11:35,259 INFO L130 PetriNetUnfolder]: 58/543 cut-off events. [2022-11-20 20:11:35,260 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 20:11:35,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 543 events. 58/543 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2783 event pairs, 0 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 301. Up to 8 conditions per place. [2022-11-20 20:11:35,347 INFO L119 LiptonReduction]: Number of co-enabled transitions 41904 [2022-11-20 20:11:45,774 INFO L134 LiptonReduction]: Checked pairs total: 316509 [2022-11-20 20:11:45,775 INFO L136 LiptonReduction]: Total number of compositions: 247 [2022-11-20 20:11:45,785 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 128 places, 149 transitions, 320 flow [2022-11-20 20:11:47,587 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48858 states, 48592 states have (on average 3.3395826473493577) internal successors, (162277), 48857 states have internal predecessors, (162277), 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) [2022-11-20 20:11:47,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:11:47,617 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=FINITE_AUTOMATA, 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;@5462ca74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:11:47,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-20 20:11:47,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 48858 states, 48592 states have (on average 3.3395826473493577) internal successors, (162277), 48857 states have internal predecessors, (162277), 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) [2022-11-20 20:11:47,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 20:11:47,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:11:47,699 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-20 20:11:47,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 20:11:47,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:11:47,705 INFO L85 PathProgramCache]: Analyzing trace with hash 8981712, now seen corresponding path program 1 times [2022-11-20 20:11:47,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:11:47,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384808786] [2022-11-20 20:11:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:11:47,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:11:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 20:11:47,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 20:11:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 20:11:48,006 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 20:11:48,009 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 20:11:48,010 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2022-11-20 20:11:48,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-20 20:11:48,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-20 20:11:48,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-20 20:11:48,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-20 20:11:48,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-20 20:11:48,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-20 20:11:48,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-20 20:11:48,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 24 remaining) [2022-11-20 20:11:48,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-20 20:11:48,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-11-20 20:11:48,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-11-20 20:11:48,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-20 20:11:48,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-20 20:11:48,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-11-20 20:11:48,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-11-20 20:11:48,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-20 20:11:48,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-20 20:11:48,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-20 20:11:48,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-20 20:11:48,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-20 20:11:48,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-20 20:11:48,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-20 20:11:48,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-20 20:11:48,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:11:48,022 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 20:11:48,025 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 20:11:48,025 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 20:11:48,115 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-20 20:11:48,122 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 20:11:48,122 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 503 transitions, 1054 flow [2022-11-20 20:11:48,123 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 503 transitions, 1054 flow [2022-11-20 20:11:48,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 503 transitions, 1054 flow [2022-11-20 20:11:48,936 INFO L130 PetriNetUnfolder]: 197/1602 cut-off events. [2022-11-20 20:11:48,937 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-20 20:11:48,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1699 conditions, 1602 events. 197/1602 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11417 event pairs, 1 based on Foata normal form. 0/1346 useless extension candidates. Maximal degree in co-relation 966. Up to 32 conditions per place. [2022-11-20 20:11:49,245 INFO L119 LiptonReduction]: Number of co-enabled transitions 162960 [2022-11-20 20:12:07,660 INFO L134 LiptonReduction]: Checked pairs total: 1459182 [2022-11-20 20:12:07,660 INFO L136 LiptonReduction]: Total number of compositions: 406 [2022-11-20 20:12:07,662 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 230 places, 275 transitions, 598 flow