./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 531fb1e21d8f5a9631a3764359a014fcdd0042558e9afceaf1b553fa03cda562 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:56:11,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:56:11,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:56:11,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:56:11,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:56:11,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:56:11,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:56:11,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:56:11,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:56:11,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:56:11,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:56:11,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:56:11,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:56:11,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:56:11,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:56:11,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:56:11,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:56:11,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:56:11,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:56:11,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:56:11,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:56:11,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:56:11,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:56:11,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:56:11,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:56:11,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:56:11,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:56:11,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:56:11,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:56:11,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:56:11,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:56:11,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:56:11,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:56:11,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:56:11,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:56:11,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:56:11,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:56:11,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:56:11,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:56:11,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:56:11,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:56:11,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 03:56:11,897 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:56:11,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:56:11,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:56:11,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:56:11,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:56:11,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:56:11,903 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:56:11,903 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:56:11,903 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:56:11,903 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:56:11,904 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:56:11,905 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:56:11,905 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:56:11,905 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:56:11,905 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:56:11,906 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:56:11,906 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:56:11,906 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:56:11,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:56:11,907 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:56:11,907 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:56:11,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:56:11,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:56:11,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:56:11,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:56:11,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:56:11,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:56:11,909 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 03:56:11,909 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:56:11,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:56:11,909 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:56:11,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:56:11,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:56:11,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:56:11,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:56:11,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:56:11,911 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:56:11,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:56:11,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:56:11,912 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:56:11,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:56:11,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:56:11,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:56:11,912 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_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 531fb1e21d8f5a9631a3764359a014fcdd0042558e9afceaf1b553fa03cda562 [2022-11-03 03:56:12,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:56:12,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:56:12,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:56:12,208 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:56:12,209 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:56:12,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i [2022-11-03 03:56:12,289 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/data/dce1f149d/c9d0c149f639415b9b8de5c69dfb01a6/FLAG48a0ff833 [2022-11-03 03:56:12,861 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:56:12,862 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i [2022-11-03 03:56:12,879 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/data/dce1f149d/c9d0c149f639415b9b8de5c69dfb01a6/FLAG48a0ff833 [2022-11-03 03:56:13,308 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/data/dce1f149d/c9d0c149f639415b9b8de5c69dfb01a6 [2022-11-03 03:56:13,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:56:13,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:56:13,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:56:13,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:56:13,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:56:13,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:13" (1/1) ... [2022-11-03 03:56:13,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49031c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:13, skipping insertion in model container [2022-11-03 03:56:13,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:13" (1/1) ... [2022-11-03 03:56:13,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:56:13,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:56:14,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:56:14,211 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:56:14,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:56:14,356 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:56:14,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14 WrapperNode [2022-11-03 03:56:14,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:56:14,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:56:14,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:56:14,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:56:14,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,457 INFO L138 Inliner]: procedures = 371, calls = 40, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 228 [2022-11-03 03:56:14,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:56:14,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:56:14,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:56:14,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:56:14,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,495 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:56:14,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:56:14,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:56:14,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:56:14,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (1/1) ... [2022-11-03 03:56:14,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:56:14,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:56:14,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:56:14,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac83a8-1416-4472-900d-352a1b6e5fd6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:56:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:56:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:56:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:56:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:56:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:56:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 03:56:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:56:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:56:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:56:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 03:56:14,580 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 03:56:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:56:14,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:56:14,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:56:14,582 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:56:14,784 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:56:14,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:56:15,465 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:56:15,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:56:15,475 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:56:15,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:15 BoogieIcfgContainer [2022-11-03 03:56:15,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:56:15,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:56:15,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:56:15,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:56:15,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:56:13" (1/3) ... [2022-11-03 03:56:15,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545079df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:15, skipping insertion in model container [2022-11-03 03:56:15,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:14" (2/3) ... [2022-11-03 03:56:15,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545079df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:15, skipping insertion in model container [2022-11-03 03:56:15,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:15" (3/3) ... [2022-11-03 03:56:15,502 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_09-arraylist.i [2022-11-03 03:56:15,510 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:56:15,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:56:15,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-03 03:56:15,537 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:56:15,734 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 03:56:15,803 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:56:15,817 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 276 transitions, 557 flow [2022-11-03 03:56:15,821 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 276 transitions, 557 flow [2022-11-03 03:56:15,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 276 transitions, 557 flow [2022-11-03 03:56:16,004 INFO L130 PetriNetUnfolder]: 2/275 cut-off events. [2022-11-03 03:56:16,004 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 03:56:16,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 275 events. 2/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2022-11-03 03:56:16,022 INFO L118 LiptonReduction]: Number of co-enabled transitions 6512 [2022-11-03 03:56:48,916 WARN L234 SmtUtils]: Spent 10.27s on a formula simplification. DAG size of input: 135 DAG size of output: 133 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:57:03,437 WARN L234 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 135 DAG size of output: 133 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:57:14,334 WARN L234 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 123 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:57:23,188 WARN L234 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 123 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:57:48,835 WARN L234 SmtUtils]: Spent 23.74s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:58:10,865 WARN L234 SmtUtils]: Spent 22.03s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:58:34,641 WARN L234 SmtUtils]: Spent 23.77s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:58:56,149 WARN L234 SmtUtils]: Spent 21.51s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:00:41,801 WARN L234 SmtUtils]: Spent 1.74m on a formula simplification. DAG size of input: 207 DAG size of output: 198 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:01:25,913 WARN L234 SmtUtils]: Spent 44.11s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:03:15,424 WARN L234 SmtUtils]: Spent 1.83m on a formula simplification. DAG size of input: 207 DAG size of output: 198 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:03:58,474 WARN L234 SmtUtils]: Spent 43.05s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:04:15,702 WARN L234 SmtUtils]: Spent 17.17s on a formula simplification. DAG size of input: 223 DAG size of output: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:04:39,495 WARN L234 SmtUtils]: Spent 20.14s on a formula simplification. DAG size of input: 226 DAG size of output: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:06:18,783 WARN L234 SmtUtils]: Spent 1.59m on a formula simplification that was a NOOP. DAG size: 356 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:07:43,487 WARN L234 SmtUtils]: Spent 1.41m on a formula simplification that was a NOOP. DAG size: 346 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:09:26,173 WARN L234 SmtUtils]: Spent 1.71m on a formula simplification that was a NOOP. DAG size: 359 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:11:47,572 WARN L234 SmtUtils]: Spent 2.36m on a formula simplification that was a NOOP. DAG size: 349 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:11:47,579 INFO L133 LiptonReduction]: Checked pairs total: 47279 [2022-11-03 04:11:47,580 INFO L135 LiptonReduction]: Total number of compositions: 271 [2022-11-03 04:11:47,591 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 77 transitions, 159 flow [2022-11-03 04:11:47,723 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1055 states, 1019 states have (on average 1.9941118743866535) internal successors, (2032), 1054 states have internal predecessors, (2032), 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) [2022-11-03 04:11:47,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:11:47,768 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;@7ba1e059, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:11:47,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-03 04:11:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 1055 states, 1019 states have (on average 1.9941118743866535) internal successors, (2032), 1054 states have internal predecessors, (2032), 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) [2022-11-03 04:11:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 04:11:47,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:47,782 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 04:11:47,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:11:47,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:47,793 INFO L85 PathProgramCache]: Analyzing trace with hash 949, now seen corresponding path program 1 times [2022-11-03 04:11:47,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:47,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814386992] [2022-11-03 04:11:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:47,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:11:47,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:47,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814386992] [2022-11-03 04:11:47,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814386992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:47,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:47,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 04:11:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100582343] [2022-11-03 04:11:47,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:47,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:11:47,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:47,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:11:47,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:11:47,996 INFO L87 Difference]: Start difference. First operand has 1055 states, 1019 states have (on average 1.9941118743866535) internal successors, (2032), 1054 states have internal predecessors, (2032), 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) [2022-11-03 04:11:48,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:48,698 INFO L93 Difference]: Finished difference Result 1046 states and 2023 transitions. [2022-11-03 04:11:48,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:11:48,701 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 [2022-11-03 04:11:48,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:48,725 INFO L225 Difference]: With dead ends: 1046 [2022-11-03 04:11:48,726 INFO L226 Difference]: Without dead ends: 1046 [2022-11-03 04:11:48,727 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 [2022-11-03 04:11:48,731 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:48,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 04:11:48,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-11-03 04:11:48,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2022-11-03 04:11:48,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1019 states have (on average 1.985279685966634) internal successors, (2023), 1045 states have internal predecessors, (2023), 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) [2022-11-03 04:11:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 2023 transitions. [2022-11-03 04:11:48,863 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 2023 transitions. Word has length 1 [2022-11-03 04:11:48,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:48,863 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 2023 transitions. [2022-11-03 04:11:48,864 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) [2022-11-03 04:11:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 2023 transitions. [2022-11-03 04:11:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 04:11:48,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:48,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:48,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:11:48,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:11:48,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:48,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1950174666, now seen corresponding path program 1 times [2022-11-03 04:11:48,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:48,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698222849] [2022-11-03 04:11:48,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:48,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms