./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur --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 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --- 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-38b53e6 [2022-11-26 00:02:35,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:02:35,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:02:35,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:02:35,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:02:35,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:02:35,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:02:35,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:02:35,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:02:35,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:02:35,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:02:35,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:02:35,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:02:35,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:02:35,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:02:35,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:02:35,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:02:35,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:02:35,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:02:35,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:02:35,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:02:35,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:02:35,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:02:35,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:02:35,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:02:35,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:02:35,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:02:35,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:02:35,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:02:35,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:02:35,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:02:35,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:02:35,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:02:35,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:02:35,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:02:35,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:02:35,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:02:35,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:02:35,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:02:35,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:02:35,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:02:35,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:02:35,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:02:35,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:02:35,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:02:35,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:02:35,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:02:35,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:02:35,215 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:02:35,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:02:35,215 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:02:35,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:02:35,216 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:02:35,216 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:02:35,216 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:02:35,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:02:35,217 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:02:35,217 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:02:35,217 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:02:35,217 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:02:35,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:02:35,218 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:02:35,219 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:02:35,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:02:35,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:02:35,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:02:35,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:02:35,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:02:35,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:02:35,220 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:02:35,221 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:02:35,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:02:35,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:02:35,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:02:35,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:02:35,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:02:35,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:35,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:02:35,223 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:02:35,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:02:35,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:02:35,223 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:02:35,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:02:35,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:02:35,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:02:35,224 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_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad [2022-11-26 00:02:35,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:02:35,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:02:35,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:02:35,485 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:02:35,486 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:02:35,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-11-26 00:02:38,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:02:38,785 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:02:38,788 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-11-26 00:02:38,808 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/data/f2aed15ea/10795c3ffb1b4d048614db8c3a8dc0f3/FLAG47bc5d23a [2022-11-26 00:02:38,824 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/data/f2aed15ea/10795c3ffb1b4d048614db8c3a8dc0f3 [2022-11-26 00:02:38,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:02:38,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:02:38,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:38,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:02:38,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:02:38,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:38" (1/1) ... [2022-11-26 00:02:38,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbbf08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:38, skipping insertion in model container [2022-11-26 00:02:38,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:38" (1/1) ... [2022-11-26 00:02:38,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:02:38,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:02:39,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:39,511 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:02:39,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:39,672 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:02:39,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39 WrapperNode [2022-11-26 00:02:39,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:39,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:39,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:02:39,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:02:39,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,743 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2022-11-26 00:02:39,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:39,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:02:39,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:02:39,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:02:39,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:02:39,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:02:39,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:02:39,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:02:39,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2022-11-26 00:02:39,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:39,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:02:39,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:02:39,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:02:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:02:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:02:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:02:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:02:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:02:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:02:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:02:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:02:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:02:39,876 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:02:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:02:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:02:39,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:02:39,879 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:02:40,099 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:02:40,102 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:02:40,623 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:02:40,633 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:02:40,633 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:02:40,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:40 BoogieIcfgContainer [2022-11-26 00:02:40,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:02:40,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:02:40,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:02:40,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:02:40,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:38" (1/3) ... [2022-11-26 00:02:40,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7848adec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:40, skipping insertion in model container [2022-11-26 00:02:40,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (2/3) ... [2022-11-26 00:02:40,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7848adec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:40, skipping insertion in model container [2022-11-26 00:02:40,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:40" (3/3) ... [2022-11-26 00:02:40,645 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2022-11-26 00:02:40,654 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:02:40,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:02:40,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-26 00:02:40,665 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:02:40,780 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:02:40,814 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:02:40,828 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 180 transitions, 365 flow [2022-11-26 00:02:40,831 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 180 transitions, 365 flow [2022-11-26 00:02:40,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 180 transitions, 365 flow [2022-11-26 00:02:40,905 INFO L130 PetriNetUnfolder]: 0/179 cut-off events. [2022-11-26 00:02:40,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:02:40,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-26 00:02:40,915 INFO L119 LiptonReduction]: Number of co-enabled transitions 2650 [2022-11-26 00:03:27,590 WARN L233 SmtUtils]: Spent 13.49s on a formula simplification. DAG size of input: 193 DAG size of output: 191 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:03:33,976 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 187 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:03:44,867 WARN L233 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 245 DAG size of output: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:04:24,799 WARN L233 SmtUtils]: Spent 36.60s on a formula simplification. DAG size of input: 252 DAG size of output: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:04:32,040 WARN L233 SmtUtils]: Spent 7.22s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:04:32,117 INFO L134 LiptonReduction]: Checked pairs total: 22544 [2022-11-26 00:04:32,117 INFO L136 LiptonReduction]: Total number of compositions: 172 [2022-11-26 00:04:32,125 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions, 111 flow [2022-11-26 00:04:32,162 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 391 states, 365 states have (on average 1.9945205479452055) internal successors, (728), 390 states have internal predecessors, (728), 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) [2022-11-26 00:04:32,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:04:32,186 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;@29876399, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:04:32,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-26 00:04:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 365 states have (on average 1.9945205479452055) internal successors, (728), 390 states have internal predecessors, (728), 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) [2022-11-26 00:04:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:04:32,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:32,195 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:04:32,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:04:32,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:32,201 INFO L85 PathProgramCache]: Analyzing trace with hash 609, now seen corresponding path program 1 times [2022-11-26 00:04:32,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:32,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201837434] [2022-11-26 00:04:32,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:32,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:32,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:32,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201837434] [2022-11-26 00:04:32,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201837434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:32,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:32,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:04:32,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749262475] [2022-11-26 00:04:32,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:32,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:04:32,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:32,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:04:32,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:04:32,365 INFO L87 Difference]: Start difference. First operand has 391 states, 365 states have (on average 1.9945205479452055) internal successors, (728), 390 states have internal predecessors, (728), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-26 00:04:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:32,455 INFO L93 Difference]: Finished difference Result 330 states and 615 transitions. [2022-11-26 00:04:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:04:32,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-26 00:04:32,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:32,468 INFO L225 Difference]: With dead ends: 330 [2022-11-26 00:04:32,468 INFO L226 Difference]: Without dead ends: 330 [2022-11-26 00:04:32,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:04:32,472 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:32,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:32,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-11-26 00:04:32,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2022-11-26 00:04:32,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 321 states have (on average 1.9158878504672898) internal successors, (615), 329 states have internal predecessors, (615), 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) [2022-11-26 00:04:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 615 transitions. [2022-11-26 00:04:32,526 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 615 transitions. Word has length 1 [2022-11-26 00:04:32,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:32,526 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 615 transitions. [2022-11-26 00:04:32,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-26 00:04:32,527 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 615 transitions. [2022-11-26 00:04:32,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:04:32,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:32,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:32,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:04:32,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:04:32,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:32,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1667350985, now seen corresponding path program 1 times [2022-11-26 00:04:32,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:32,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685519155] [2022-11-26 00:04:32,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:32,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:33,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:33,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685519155] [2022-11-26 00:04:33,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685519155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:33,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:33,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:04:33,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279138201] [2022-11-26 00:04:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:33,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:04:33,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:33,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:04:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:04:33,268 INFO L87 Difference]: Start difference. First operand 330 states and 615 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-11-26 00:04:33,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:33,645 INFO L93 Difference]: Finished difference Result 362 states and 673 transitions. [2022-11-26 00:04:33,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:04:33,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2022-11-26 00:04:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:33,647 INFO L225 Difference]: With dead ends: 362 [2022-11-26 00:04:33,648 INFO L226 Difference]: Without dead ends: 362 [2022-11-26 00:04:33,648 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 [2022-11-26 00:04:33,649 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:33,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 34 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:04:33,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-26 00:04:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 350. [2022-11-26 00:04:33,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 341 states have (on average 1.9090909090909092) internal successors, (651), 349 states have internal predecessors, (651), 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) [2022-11-26 00:04:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 651 transitions. [2022-11-26 00:04:33,684 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 651 transitions. Word has length 9 [2022-11-26 00:04:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:33,685 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 651 transitions. [2022-11-26 00:04:33,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-11-26 00:04:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 651 transitions. [2022-11-26 00:04:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:04:33,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:33,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:33,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:04:33,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:04:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1440551400, now seen corresponding path program 1 times [2022-11-26 00:04:33,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:33,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305346761] [2022-11-26 00:04:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:33,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:34,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:34,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305346761] [2022-11-26 00:04:34,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305346761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:34,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:34,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:04:34,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213171117] [2022-11-26 00:04:34,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:34,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:04:34,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:04:34,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:04:34,125 INFO L87 Difference]: Start difference. First operand 350 states and 651 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-26 00:04:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:34,631 INFO L93 Difference]: Finished difference Result 466 states and 877 transitions. [2022-11-26 00:04:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:04:34,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-11-26 00:04:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:34,635 INFO L225 Difference]: With dead ends: 466 [2022-11-26 00:04:34,635 INFO L226 Difference]: Without dead ends: 450 [2022-11-26 00:04:34,635 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 [2022-11-26 00:04:34,636 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 64 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:34,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 31 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:04:34,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-11-26 00:04:34,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2022-11-26 00:04:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 441 states have (on average 1.9206349206349207) internal successors, (847), 449 states have internal predecessors, (847), 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) [2022-11-26 00:04:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 847 transitions. [2022-11-26 00:04:34,653 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 847 transitions. Word has length 10 [2022-11-26 00:04:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:34,653 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 847 transitions. [2022-11-26 00:04:34,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-26 00:04:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 847 transitions. [2022-11-26 00:04:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:04:34,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:34,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:34,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:04:34,665 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:04:34,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:34,665 INFO L85 PathProgramCache]: Analyzing trace with hash -232073428, now seen corresponding path program 1 times [2022-11-26 00:04:34,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:34,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905126250] [2022-11-26 00:04:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:34,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:34,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:34,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:34,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905126250] [2022-11-26 00:04:34,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905126250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:34,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:34,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:04:34,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036894875] [2022-11-26 00:04:34,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:34,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:04:34,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:04:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:04:34,789 INFO L87 Difference]: Start difference. First operand 450 states and 847 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-26 00:04:34,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:34,868 INFO L93 Difference]: Finished difference Result 436 states and 804 transitions. [2022-11-26 00:04:34,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:04:34,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-26 00:04:34,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:34,871 INFO L225 Difference]: With dead ends: 436 [2022-11-26 00:04:34,871 INFO L226 Difference]: Without dead ends: 436 [2022-11-26 00:04:34,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:04:34,872 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 34 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:34,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 54 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-26 00:04:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2022-11-26 00:04:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 426 states have (on average 1.8873239436619718) internal successors, (804), 435 states have internal predecessors, (804), 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) [2022-11-26 00:04:34,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 804 transitions. [2022-11-26 00:04:34,893 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 804 transitions. Word has length 13 [2022-11-26 00:04:34,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:34,893 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 804 transitions. [2022-11-26 00:04:34,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-26 00:04:34,895 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 804 transitions. [2022-11-26 00:04:34,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:04:34,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:34,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:34,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:04:34,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:04:34,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1873739604, now seen corresponding path program 2 times [2022-11-26 00:04:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:34,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064434969] [2022-11-26 00:04:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:34,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:04:34,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:04:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:04:34,996 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:04:34,997 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:04:34,998 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2022-11-26 00:04:34,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2022-11-26 00:04:35,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2022-11-26 00:04:35,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2022-11-26 00:04:35,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2022-11-26 00:04:35,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2022-11-26 00:04:35,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2022-11-26 00:04:35,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2022-11-26 00:04:35,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2022-11-26 00:04:35,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2022-11-26 00:04:35,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2022-11-26 00:04:35,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2022-11-26 00:04:35,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2022-11-26 00:04:35,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2022-11-26 00:04:35,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2022-11-26 00:04:35,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2022-11-26 00:04:35,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2022-11-26 00:04:35,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2022-11-26 00:04:35,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2022-11-26 00:04:35,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2022-11-26 00:04:35,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2022-11-26 00:04:35,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:04:35,005 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-11-26 00:04:35,012 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:04:35,012 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:04:35,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:35 BasicIcfg [2022-11-26 00:04:35,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:04:35,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:04:35,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:04:35,076 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:04:35,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:40" (3/4) ... [2022-11-26 00:04:35,079 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:04:35,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:04:35,081 INFO L158 Benchmark]: Toolchain (without parser) took 116249.94ms. Allocated memory was 159.4MB in the beginning and 245.4MB in the end (delta: 86.0MB). Free memory was 123.9MB in the beginning and 161.4MB in the end (delta: -37.5MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2022-11-26 00:04:35,083 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:04:35,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.64ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 85.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-26 00:04:35,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.06ms. Allocated memory is still 159.4MB. Free memory was 85.5MB in the beginning and 82.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:04:35,085 INFO L158 Benchmark]: Boogie Preprocessor took 39.06ms. Allocated memory is still 159.4MB. Free memory was 82.5MB in the beginning and 79.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:35,085 INFO L158 Benchmark]: RCFGBuilder took 851.29ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 79.9MB in the beginning and 165.0MB in the end (delta: -85.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-26 00:04:35,085 INFO L158 Benchmark]: TraceAbstraction took 114437.07ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 165.0MB in the beginning and 161.4MB in the end (delta: 3.6MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-11-26 00:04:35,086 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 245.4MB. Free memory is still 161.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:04:35,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.64ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 85.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.06ms. Allocated memory is still 159.4MB. Free memory was 85.5MB in the beginning and 82.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.06ms. Allocated memory is still 159.4MB. Free memory was 82.5MB in the beginning and 79.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 851.29ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 79.9MB in the beginning and 165.0MB in the end (delta: -85.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 114437.07ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 165.0MB in the beginning and 161.4MB in the end (delta: 3.6MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 245.4MB. Free memory is still 161.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.3s, 184 PlacesBefore, 57 PlacesAfterwards, 180 TransitionsBefore, 53 TransitionsAfterwards, 2650 CoEnabledTransitionPairs, 16 FixpointIterations, 119 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 172 TotalNumberOfCompositions, 22544 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4918, independent: 3613, independent conditional: 0, independent unconditional: 3613, dependent: 1210, dependent conditional: 0, dependent unconditional: 1210, unknown: 95, unknown conditional: 0, unknown unconditional: 95] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1778, independent: 1640, independent conditional: 0, independent unconditional: 1640, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1778, independent: 1524, independent conditional: 0, independent unconditional: 1524, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 254, independent: 116, independent conditional: 0, independent unconditional: 116, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11277, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 560, dependent conditional: 0, dependent unconditional: 560, unknown: 10617, unknown conditional: 0, unknown unconditional: 10617] ], Cache Queries: [ total: 4918, independent: 1973, independent conditional: 0, independent unconditional: 1973, dependent: 1077, dependent conditional: 0, dependent unconditional: 1077, unknown: 1868, unknown conditional: 0, unknown unconditional: 1868] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68, Unknown cache size: 4, Unknown conditional cache size: 0, Unknown unconditional cache size: 4 - 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: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-3:0}, A_mutex={1:0}, arg={0:0}, B={-2:0}, B_mutex={2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; [L1251] EXPR 0 A->datum [L1251] 0 data = &A->datum [L1253] 0 *data = 42 VAL [A={-3:0}, A_mutex={1:0}, arg={0:0}, B={-2:0}, B_mutex={2:0}, data={-3:0}, t1={9:0}] [L1237] EXPR 1 A->datum VAL [A={-3:0}, A->datum=42, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-2:0}, B_mutex={2:0}] [L1237] 1 A->datum++ VAL [A={-3:0}, A->datum=42, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-2:0}, B_mutex={2:0}] [L1237] 1 A->datum++ VAL [A={-3:0}, A->datum=42, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-2:0}, B_mutex={2:0}] 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: A = new(3) [1246] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: *data = 42 [1253] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: B = new(5) [1247] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: 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: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: 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, 236 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 114.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 111.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 659 IncrementalHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 114 mSDtfsCounter, 659 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 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! [2022-11-26 00:04:35,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc85a710-20e2-4f09-98af-f91adc3a4138/bin/utaipan-ByfvJB40ur/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