./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW --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 a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 --- 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-4e7fbc6 [2022-11-23 15:43:28,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:43:28,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:43:28,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:43:28,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:43:28,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:43:28,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:43:28,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:43:28,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:43:28,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:43:28,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:43:28,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:43:28,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:43:28,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:43:28,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:43:28,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:43:28,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:43:28,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:43:28,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:43:28,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:43:28,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:43:28,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:43:28,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:43:28,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:43:28,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:43:28,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:43:28,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:43:28,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:43:28,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:43:28,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:43:28,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:43:28,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:43:28,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:43:28,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:43:28,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:43:28,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:43:28,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:43:28,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:43:28,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:43:28,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:43:28,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:43:28,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 15:43:28,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:43:28,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:43:28,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:43:28,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:43:28,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:43:28,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:43:28,253 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:43:28,253 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:43:28,253 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:43:28,253 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:43:28,254 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:43:28,254 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:43:28,254 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:43:28,254 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:43:28,255 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:43:28,255 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:43:28,255 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:43:28,255 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:43:28,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:43:28,256 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:43:28,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:43:28,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:43:28,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:43:28,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:43:28,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:43:28,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:43:28,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:43:28,258 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 15:43:28,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:43:28,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:43:28,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:43:28,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:43:28,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:43:28,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:43:28,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:28,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:43:28,260 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:43:28,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:43:28,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:43:28,260 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:43:28,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:43:28,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:43:28,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:43:28,261 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_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 [2022-11-23 15:43:28,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:43:28,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:43:28,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:43:28,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:43:28,542 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:43:28,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i [2022-11-23 15:43:31,555 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:43:31,846 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:43:31,846 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i [2022-11-23 15:43:31,861 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/data/ec4b58975/6dfe8fab55254349bc1dfc5cee1d3404/FLAGd3a76a0a7 [2022-11-23 15:43:31,882 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/data/ec4b58975/6dfe8fab55254349bc1dfc5cee1d3404 [2022-11-23 15:43:31,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:43:31,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:43:31,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:31,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:43:31,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:43:31,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:31" (1/1) ... [2022-11-23 15:43:31,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347329b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:31, skipping insertion in model container [2022-11-23 15:43:31,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:31" (1/1) ... [2022-11-23 15:43:31,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:43:31,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:43:32,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:32,492 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:43:32,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:32,644 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:43:32,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32 WrapperNode [2022-11-23 15:43:32,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:32,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:32,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:43:32,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:43:32,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,728 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2022-11-23 15:43:32,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:32,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:43:32,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:43:32,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:43:32,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,785 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:43:32,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:43:32,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:43:32,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:43:32,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (1/1) ... [2022-11-23 15:43:32,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:32,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:43:32,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:43:32,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:43:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:43:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:43:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:43:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:43:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:43:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 15:43:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 15:43:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:43:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:43:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:43:32,887 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:43:33,065 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:43:33,068 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:43:33,283 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:43:33,292 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:43:33,292 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:43:33,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:33 BoogieIcfgContainer [2022-11-23 15:43:33,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:43:33,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:43:33,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:43:33,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:43:33,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:43:31" (1/3) ... [2022-11-23 15:43:33,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d64fa5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:33, skipping insertion in model container [2022-11-23 15:43:33,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:32" (2/3) ... [2022-11-23 15:43:33,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d64fa5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:33, skipping insertion in model container [2022-11-23 15:43:33,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:33" (3/3) ... [2022-11-23 15:43:33,318 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_15-fldunknown_access.i [2022-11-23 15:43:33,328 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:43:33,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:43:33,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 15:43:33,340 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:43:33,426 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 15:43:33,487 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:43:33,513 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 75 transitions, 155 flow [2022-11-23 15:43:33,519 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 75 transitions, 155 flow [2022-11-23 15:43:33,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 155 flow [2022-11-23 15:43:33,601 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-11-23 15:43:33,601 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 15:43:33,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 1/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-11-23 15:43:33,623 INFO L119 LiptonReduction]: Number of co-enabled transitions 1188 [2022-11-23 15:43:36,127 INFO L134 LiptonReduction]: Checked pairs total: 5499 [2022-11-23 15:43:36,127 INFO L136 LiptonReduction]: Total number of compositions: 44 [2022-11-23 15:43:36,136 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 31 transitions, 67 flow [2022-11-23 15:43:36,164 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 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) [2022-11-23 15:43:36,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:43:36,215 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;@7fef56b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:43:36,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-23 15:43:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 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) [2022-11-23 15:43:36,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:43:36,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:36,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:36,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 15:43:36,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:36,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1159531522, now seen corresponding path program 1 times [2022-11-23 15:43:36,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:36,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669378259] [2022-11-23 15:43:36,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:36,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:36,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:43:36,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:36,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669378259] [2022-11-23 15:43:36,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669378259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:36,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:36,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:43:36,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143323555] [2022-11-23 15:43:36,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:36,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:43:36,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:36,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:43:36,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:43:36,971 INFO L87 Difference]: Start difference. First operand has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 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) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-23 15:43:37,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:37,311 INFO L93 Difference]: Finished difference Result 253 states and 468 transitions. [2022-11-23 15:43:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:43:37,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) Word has length 8 [2022-11-23 15:43:37,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:37,326 INFO L225 Difference]: With dead ends: 253 [2022-11-23 15:43:37,326 INFO L226 Difference]: Without dead ends: 253 [2022-11-23 15:43:37,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:43:37,331 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:37,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 16 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:43:37,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-23 15:43:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 241. [2022-11-23 15:43:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 234 states have (on average 1.9059829059829059) internal successors, (446), 240 states have internal predecessors, (446), 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) [2022-11-23 15:43:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 446 transitions. [2022-11-23 15:43:37,381 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 446 transitions. Word has length 8 [2022-11-23 15:43:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:37,381 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 446 transitions. [2022-11-23 15:43:37,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-23 15:43:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 446 transitions. [2022-11-23 15:43:37,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:43:37,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:37,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:37,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:43:37,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 15:43:37,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:37,384 INFO L85 PathProgramCache]: Analyzing trace with hash 741151503, now seen corresponding path program 1 times [2022-11-23 15:43:37,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:37,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27609781] [2022-11-23 15:43:37,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:37,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:43:37,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:37,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27609781] [2022-11-23 15:43:37,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27609781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:37,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:37,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:43:37,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140701129] [2022-11-23 15:43:37,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:37,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:43:37,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:37,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:43:37,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:43:37,729 INFO L87 Difference]: Start difference. First operand 241 states and 446 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-23 15:43:37,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:37,976 INFO L93 Difference]: Finished difference Result 269 states and 496 transitions. [2022-11-23 15:43:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:43:37,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) Word has length 8 [2022-11-23 15:43:37,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:37,980 INFO L225 Difference]: With dead ends: 269 [2022-11-23 15:43:37,980 INFO L226 Difference]: Without dead ends: 269 [2022-11-23 15:43:37,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:43:37,981 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:37,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 27 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:43:37,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-23 15:43:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 257. [2022-11-23 15:43:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 250 states have (on average 1.896) internal successors, (474), 256 states have internal predecessors, (474), 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) [2022-11-23 15:43:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 474 transitions. [2022-11-23 15:43:38,017 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 474 transitions. Word has length 8 [2022-11-23 15:43:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:38,017 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 474 transitions. [2022-11-23 15:43:38,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-23 15:43:38,018 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 474 transitions. [2022-11-23 15:43:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 15:43:38,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:38,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:38,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:43:38,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 15:43:38,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:38,022 INFO L85 PathProgramCache]: Analyzing trace with hash -482984922, now seen corresponding path program 1 times [2022-11-23 15:43:38,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:38,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340540395] [2022-11-23 15:43:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:38,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:38,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:43:38,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:38,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340540395] [2022-11-23 15:43:38,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340540395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:38,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:38,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:43:38,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414852497] [2022-11-23 15:43:38,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:38,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:43:38,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:38,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:43:38,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:43:38,266 INFO L87 Difference]: Start difference. First operand 257 states and 474 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-23 15:43:38,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:38,500 INFO L93 Difference]: Finished difference Result 306 states and 567 transitions. [2022-11-23 15:43:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:43:38,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) Word has length 14 [2022-11-23 15:43:38,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:38,504 INFO L225 Difference]: With dead ends: 306 [2022-11-23 15:43:38,504 INFO L226 Difference]: Without dead ends: 294 [2022-11-23 15:43:38,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:43:38,505 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:38,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 17 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:43:38,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-11-23 15:43:38,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2022-11-23 15:43:38,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 287 states have (on average 1.89198606271777) internal successors, (543), 293 states have internal predecessors, (543), 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) [2022-11-23 15:43:38,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 543 transitions. [2022-11-23 15:43:38,522 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 543 transitions. Word has length 14 [2022-11-23 15:43:38,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:38,523 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 543 transitions. [2022-11-23 15:43:38,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-23 15:43:38,523 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 543 transitions. [2022-11-23 15:43:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 15:43:38,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:38,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:38,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:43:38,525 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 15:43:38,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:38,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1453554740, now seen corresponding path program 1 times [2022-11-23 15:43:38,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:38,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121070472] [2022-11-23 15:43:38,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:38,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:43:38,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:38,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121070472] [2022-11-23 15:43:38,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121070472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:38,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:38,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:43:38,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048093624] [2022-11-23 15:43:38,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:38,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:43:38,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:38,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:43:38,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:43:38,737 INFO L87 Difference]: Start difference. First operand 294 states and 543 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-23 15:43:38,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:38,901 INFO L93 Difference]: Finished difference Result 342 states and 632 transitions. [2022-11-23 15:43:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:43:38,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) Word has length 14 [2022-11-23 15:43:38,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:38,904 INFO L225 Difference]: With dead ends: 342 [2022-11-23 15:43:38,904 INFO L226 Difference]: Without dead ends: 330 [2022-11-23 15:43:38,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:43:38,905 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 24 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:38,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:43:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-11-23 15:43:38,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2022-11-23 15:43:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 323 states have (on average 1.8761609907120742) internal successors, (606), 329 states have internal predecessors, (606), 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) [2022-11-23 15:43:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 606 transitions. [2022-11-23 15:43:38,919 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 606 transitions. Word has length 14 [2022-11-23 15:43:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:38,919 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 606 transitions. [2022-11-23 15:43:38,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-23 15:43:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 606 transitions. [2022-11-23 15:43:38,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:43:38,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:38,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:38,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:43:38,922 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 15:43:38,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash 978133048, now seen corresponding path program 1 times [2022-11-23 15:43:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:38,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325088539] [2022-11-23 15:43:38,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:38,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:43:38,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:43:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:43:38,979 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:43:38,980 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:43:38,981 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-11-23 15:43:38,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-11-23 15:43:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-23 15:43:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-11-23 15:43:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-11-23 15:43:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-11-23 15:43:38,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-11-23 15:43:38,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:43:38,987 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-23 15:43:38,994 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:43:38,994 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:43:39,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:43:39 BasicIcfg [2022-11-23 15:43:39,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:43:39,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:43:39,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:43:39,023 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:43:39,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:33" (3/4) ... [2022-11-23 15:43:39,026 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:43:39,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:43:39,027 INFO L158 Benchmark]: Toolchain (without parser) took 7137.98ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 129.0MB in the beginning and 131.3MB in the end (delta: -2.3MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2022-11-23 15:43:39,027 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:43:39,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 755.91ms. Allocated memory is still 169.9MB. Free memory was 128.9MB in the beginning and 101.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 15:43:39,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.51ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:43:39,029 INFO L158 Benchmark]: Boogie Preprocessor took 66.77ms. Allocated memory is still 169.9MB. Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:43:39,029 INFO L158 Benchmark]: RCFGBuilder took 496.32ms. Allocated memory is still 169.9MB. Free memory was 97.6MB in the beginning and 131.6MB in the end (delta: -34.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-23 15:43:39,030 INFO L158 Benchmark]: TraceAbstraction took 5710.24ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 131.6MB in the beginning and 132.3MB in the end (delta: -735.4kB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2022-11-23 15:43:39,030 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 205.5MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:43:39,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 755.91ms. Allocated memory is still 169.9MB. Free memory was 128.9MB in the beginning and 101.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.51ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.77ms. Allocated memory is still 169.9MB. Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.32ms. Allocated memory is still 169.9MB. Free memory was 97.6MB in the beginning and 131.6MB in the end (delta: -34.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5710.24ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 131.6MB in the beginning and 132.3MB in the end (delta: -735.4kB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 205.5MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 78 PlacesBefore, 35 PlacesAfterwards, 75 TransitionsBefore, 31 TransitionsAfterwards, 1188 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 5499 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1384, independent: 1079, independent conditional: 0, independent unconditional: 1079, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 695, independent: 600, independent conditional: 0, independent unconditional: 600, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 695, independent: 556, independent conditional: 0, independent unconditional: 556, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 139, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 500, independent: 166, independent conditional: 0, independent unconditional: 166, dependent: 334, dependent conditional: 0, dependent unconditional: 334, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1384, independent: 479, independent conditional: 0, independent unconditional: 479, dependent: 210, dependent conditional: 0, dependent unconditional: 210, unknown: 695, unknown conditional: 0, unknown unconditional: 695] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 66, Negative conditional cache size: 0, Negative unconditional cache size: 66, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 932]: Data race detected Data race detected The following path leads to a data race: [L918-L921] 0 struct { int x; int y; } data; [L927] 0 int *i,j = __VERIFIER_nondet_int(); [L927] 0 int *i,j = __VERIFIER_nondet_int(); [L928] 0 pthread_t id; [L929] COND TRUE 0 \read(j) [L929] 0 i = &data.x [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [#in~arg={0:0}, data={1:0}, i={1:0}, id={5:0}, j=1, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L932] EXPR 0 \read(*i) VAL [#in~arg={0:0}, \read(*i)=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L932] 0 (*i)++ VAL [#in~arg={0:0}, \read(*i)=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] EXPR 1 data.x VAL [#in~arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L932] 0 (*i)++ VAL [#in~arg={0:0}, (*i)++=9, (*i)++=0, \read(*i)=0, arg={0:0}, data={1:0}, data.x=0, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [#in~arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L932] 0 (*i)++ VAL [#in~arg={0:0}, (*i)++=0, (*i)++=9, \read(*i)=0, arg={0:0}, data={1:0}, data.x=0, i={1:0}, id={5:0}, j=1] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: (*i)++ [932] * C: (*i)++ [932] * C: (*i)++ [932] * C: data.x++ [923] * C: (*i)++ [932] and C: (*i)++ [932] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 768 IncrementalHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 73 mSDtfsCounter, 768 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 15:43:39,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d4eaf33-bca0-47ab-b419-e7415eaf9aa8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE