./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF --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 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:28:29,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:28:29,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:28:29,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:28:29,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:28:29,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:28:29,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:28:29,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:28:29,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:28:29,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:28:29,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:28:29,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:28:29,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:28:29,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:28:29,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:28:29,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:28:29,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:28:29,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:28:29,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:28:29,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:28:29,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:28:29,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:28:29,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:28:29,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:28:29,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:28:29,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:28:29,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:28:29,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:28:29,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:28:29,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:28:29,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:28:29,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:28:29,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:28:29,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:28:29,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:28:29,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:28:29,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:28:29,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:28:29,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:28:29,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:28:29,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:28:29,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-13 02:28:29,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:28:29,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:28:29,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:28:29,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:28:29,524 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:28:29,524 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:28:29,524 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:28:29,524 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:28:29,524 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:28:29,525 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:28:29,526 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:28:29,526 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:28:29,526 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:28:29,526 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:28:29,527 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:28:29,527 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:28:29,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:28:29,528 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:28:29,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:28:29,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:28:29,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:28:29,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:28:29,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:28:29,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:28:29,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:28:29,529 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-13 02:28:29,529 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:28:29,529 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:28:29,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:28:29,531 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:28:29,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:28:29,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:28:29,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:28:29,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:29,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:28:29,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:28:29,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:28:29,533 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:28:29,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:28:29,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:28:29,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:28:29,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:28:29,534 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed [2021-11-13 02:28:29,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:28:29,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:28:29,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:28:29,880 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:28:29,881 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:28:29,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2021-11-13 02:28:29,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data/c543b22b3/24caee674d1948c4a0a2c89fbcc4a586/FLAGb882ea2ee [2021-11-13 02:28:30,652 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:28:30,653 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2021-11-13 02:28:30,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data/c543b22b3/24caee674d1948c4a0a2c89fbcc4a586/FLAGb882ea2ee [2021-11-13 02:28:30,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data/c543b22b3/24caee674d1948c4a0a2c89fbcc4a586 [2021-11-13 02:28:30,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:28:30,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:28:30,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:30,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:28:30,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:28:30,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:30" (1/1) ... [2021-11-13 02:28:30,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6373d593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:30, skipping insertion in model container [2021-11-13 02:28:30,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:30" (1/1) ... [2021-11-13 02:28:30,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:28:30,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:28:31,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:31,569 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:28:31,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:31,751 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:28:31,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31 WrapperNode [2021-11-13 02:28:31,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:31,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:31,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:28:31,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:28:31,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:31,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:28:31,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:28:31,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:28:31,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:28:31,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:28:31,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:28:31,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:28:31,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (1/1) ... [2021-11-13 02:28:31,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:31,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:28:31,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:28:31,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:28:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:28:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:28:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 02:28:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 02:28:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-13 02:28:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:28:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-13 02:28:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-13 02:28:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 02:28:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:28:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:28:32,007 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 02:28:32,400 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:28:32,400 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:28:32,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:32 BoogieIcfgContainer [2021-11-13 02:28:32,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:28:32,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:28:32,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:28:32,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:28:32,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:28:30" (1/3) ... [2021-11-13 02:28:32,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679cd1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:32, skipping insertion in model container [2021-11-13 02:28:32,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:31" (2/3) ... [2021-11-13 02:28:32,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679cd1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:32, skipping insertion in model container [2021-11-13 02:28:32,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:32" (3/3) ... [2021-11-13 02:28:32,411 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2021-11-13 02:28:32,416 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 02:28:32,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:28:32,417 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-13 02:28:32,417 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 02:28:32,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,447 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,447 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,473 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,473 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,473 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,473 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,474 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,474 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,474 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,474 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,475 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,475 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,475 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,478 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,478 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,478 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,478 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,479 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,479 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,479 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,483 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,483 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,483 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,483 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,484 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,484 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,484 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,487 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,488 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,488 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:32,492 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 02:28:32,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:28:32,571 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:28:32,571 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-13 02:28:32,592 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-13 02:28:32,609 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 115 transitions, 235 flow [2021-11-13 02:28:32,613 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 115 transitions, 235 flow [2021-11-13 02:28:32,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 115 transitions, 235 flow [2021-11-13 02:28:32,696 INFO L129 PetriNetUnfolder]: 0/114 cut-off events. [2021-11-13 02:28:32,697 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 02:28:32,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 114 events. 0/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-11-13 02:28:32,702 INFO L116 LiptonReduction]: Number of co-enabled transitions 1920 [2021-11-13 02:28:39,006 INFO L131 LiptonReduction]: Checked pairs total: 11272 [2021-11-13 02:28:39,007 INFO L133 LiptonReduction]: Total number of compositions: 98 [2021-11-13 02:28:39,015 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 41 transitions, 87 flow [2021-11-13 02:28:39,042 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 345 states, 323 states have (on average 2.0061919504643964) internal successors, (648), 344 states have internal predecessors, (648), 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) [2021-11-13 02:28:39,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 345 states, 323 states have (on average 2.0061919504643964) internal successors, (648), 344 states have internal predecessors, (648), 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) [2021-11-13 02:28:39,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-13 02:28:39,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:39,052 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-13 02:28:39,052 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:39,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash 383, now seen corresponding path program 1 times [2021-11-13 02:28:39,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:39,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186749294] [2021-11-13 02:28:39,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:39,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:39,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:39,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:39,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186749294] [2021-11-13 02:28:39,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186749294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:39,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:39,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-11-13 02:28:39,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657469937] [2021-11-13 02:28:39,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:39,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:28:39,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:39,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:28:39,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:28:39,213 INFO L87 Difference]: Start difference. First operand has 345 states, 323 states have (on average 2.0061919504643964) internal successors, (648), 344 states have internal predecessors, (648), 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) [2021-11-13 02:28:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:39,267 INFO L93 Difference]: Finished difference Result 289 states and 542 transitions. [2021-11-13 02:28:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:28:39,270 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 [2021-11-13 02:28:39,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:39,282 INFO L225 Difference]: With dead ends: 289 [2021-11-13 02:28:39,283 INFO L226 Difference]: Without dead ends: 289 [2021-11-13 02:28:39,284 INFO L932 BasicCegarLoop]: 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 [2021-11-13 02:28:39,287 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.84ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:39,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 13 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 26.84ms Time] [2021-11-13 02:28:39,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-13 02:28:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-11-13 02:28:39,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 281 states have (on average 1.9288256227758007) internal successors, (542), 288 states have internal predecessors, (542), 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) [2021-11-13 02:28:39,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 542 transitions. [2021-11-13 02:28:39,349 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 542 transitions. Word has length 1 [2021-11-13 02:28:39,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:39,350 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 542 transitions. [2021-11-13 02:28:39,350 INFO L471 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) [2021-11-13 02:28:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 542 transitions. [2021-11-13 02:28:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 02:28:39,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:39,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:39,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 02:28:39,352 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:39,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:39,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1216600558, now seen corresponding path program 1 times [2021-11-13 02:28:39,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:39,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156593606] [2021-11-13 02:28:39,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:39,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:39,570 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:39,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156593606] [2021-11-13 02:28:39,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156593606] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:39,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:39,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 02:28:39,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548837628] [2021-11-13 02:28:39,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:39,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:39,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:39,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:39,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:39,574 INFO L87 Difference]: Start difference. First operand 289 states and 542 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) [2021-11-13 02:28:39,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:39,826 INFO L93 Difference]: Finished difference Result 383 states and 723 transitions. [2021-11-13 02:28:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:28:39,826 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 [2021-11-13 02:28:39,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:39,831 INFO L225 Difference]: With dead ends: 383 [2021-11-13 02:28:39,831 INFO L226 Difference]: Without dead ends: 383 [2021-11-13 02:28:39,831 INFO L932 BasicCegarLoop]: 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 [2021-11-13 02:28:39,833 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.66ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 203.21ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:39,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 24 Invalid, 184 Unknown, 0 Unchecked, 5.66ms Time], IncrementalHoareTripleChecker [21 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 203.21ms Time] [2021-11-13 02:28:39,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-11-13 02:28:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 351. [2021-11-13 02:28:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 343 states have (on average 1.9475218658892128) internal successors, (668), 350 states have internal predecessors, (668), 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) [2021-11-13 02:28:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 668 transitions. [2021-11-13 02:28:39,859 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 668 transitions. Word has length 9 [2021-11-13 02:28:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:39,860 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 668 transitions. [2021-11-13 02:28:39,860 INFO L471 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) [2021-11-13 02:28:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 668 transitions. [2021-11-13 02:28:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 02:28:39,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:39,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:39,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 02:28:39,862 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:39,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash -463826740, now seen corresponding path program 1 times [2021-11-13 02:28:39,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:39,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040119481] [2021-11-13 02:28:39,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:39,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:40,075 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:40,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040119481] [2021-11-13 02:28:40,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040119481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:40,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:40,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 02:28:40,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494099357] [2021-11-13 02:28:40,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:40,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:40,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:40,081 INFO L87 Difference]: Start difference. First operand 351 states and 668 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) [2021-11-13 02:28:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:40,460 INFO L93 Difference]: Finished difference Result 643 states and 1208 transitions. [2021-11-13 02:28:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:28:40,461 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 [2021-11-13 02:28:40,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:40,466 INFO L225 Difference]: With dead ends: 643 [2021-11-13 02:28:40,467 INFO L226 Difference]: Without dead ends: 643 [2021-11-13 02:28:40,467 INFO L932 BasicCegarLoop]: 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 [2021-11-13 02:28:40,468 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 54 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 281.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.09ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 353.32ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:40,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 25 Invalid, 299 Unknown, 0 Unchecked, 4.09ms Time], IncrementalHoareTripleChecker [40 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 353.32ms Time] [2021-11-13 02:28:40,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2021-11-13 02:28:40,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 395. [2021-11-13 02:28:40,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 387 states have (on average 1.9431524547803618) internal successors, (752), 394 states have internal predecessors, (752), 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) [2021-11-13 02:28:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 752 transitions. [2021-11-13 02:28:40,495 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 752 transitions. Word has length 9 [2021-11-13 02:28:40,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:40,496 INFO L470 AbstractCegarLoop]: Abstraction has 395 states and 752 transitions. [2021-11-13 02:28:40,496 INFO L471 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) [2021-11-13 02:28:40,496 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 752 transitions. [2021-11-13 02:28:40,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 02:28:40,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:40,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:40,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 02:28:40,498 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:40,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:40,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1839526763, now seen corresponding path program 1 times [2021-11-13 02:28:40,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:40,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212383026] [2021-11-13 02:28:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:40,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:40,547 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:40,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212383026] [2021-11-13 02:28:40,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212383026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:40,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:40,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 02:28:40,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883227506] [2021-11-13 02:28:40,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:40,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:28:40,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:40,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:28:40,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:28:40,550 INFO L87 Difference]: Start difference. First operand 395 states and 752 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-11-13 02:28:40,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:40,575 INFO L93 Difference]: Finished difference Result 188 states and 316 transitions. [2021-11-13 02:28:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:28:40,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-11-13 02:28:40,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:40,578 INFO L225 Difference]: With dead ends: 188 [2021-11-13 02:28:40,578 INFO L226 Difference]: Without dead ends: 188 [2021-11-13 02:28:40,578 INFO L932 BasicCegarLoop]: 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 [2021-11-13 02:28:40,580 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.54ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.38ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:40,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 32 Invalid, 21 Unknown, 0 Unchecked, 0.54ms Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 21.38ms Time] [2021-11-13 02:28:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-13 02:28:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2021-11-13 02:28:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 182 states have (on average 1.7362637362637363) internal successors, (316), 187 states have internal predecessors, (316), 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) [2021-11-13 02:28:40,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 316 transitions. [2021-11-13 02:28:40,590 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 316 transitions. Word has length 12 [2021-11-13 02:28:40,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:40,590 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 316 transitions. [2021-11-13 02:28:40,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-11-13 02:28:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 316 transitions. [2021-11-13 02:28:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 02:28:40,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:40,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:40,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 02:28:40,592 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:40,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:40,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1909902961, now seen corresponding path program 1 times [2021-11-13 02:28:40,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:40,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436104710] [2021-11-13 02:28:40,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:40,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:40,723 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:40,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436104710] [2021-11-13 02:28:40,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436104710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:40,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:40,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 02:28:40,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748841824] [2021-11-13 02:28:40,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:40,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:40,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:40,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:40,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:40,733 INFO L87 Difference]: Start difference. First operand 188 states and 316 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-13 02:28:40,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:40,836 INFO L93 Difference]: Finished difference Result 214 states and 363 transitions. [2021-11-13 02:28:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:28:40,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2021-11-13 02:28:40,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:40,839 INFO L225 Difference]: With dead ends: 214 [2021-11-13 02:28:40,839 INFO L226 Difference]: Without dead ends: 201 [2021-11-13 02:28:40,839 INFO L932 BasicCegarLoop]: 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 [2021-11-13 02:28:40,841 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.87ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:40,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 25 Invalid, 107 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [8 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 94.87ms Time] [2021-11-13 02:28:40,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-13 02:28:40,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 196. [2021-11-13 02:28:40,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.7172774869109948) internal successors, (328), 195 states have internal predecessors, (328), 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) [2021-11-13 02:28:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 328 transitions. [2021-11-13 02:28:40,850 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 328 transitions. Word has length 15 [2021-11-13 02:28:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:40,850 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 328 transitions. [2021-11-13 02:28:40,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-13 02:28:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 328 transitions. [2021-11-13 02:28:40,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 02:28:40,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:40,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:40,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 02:28:40,852 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:40,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:40,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1288440727, now seen corresponding path program 1 times [2021-11-13 02:28:40,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:40,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532832930] [2021-11-13 02:28:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:40,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:40,951 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:40,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532832930] [2021-11-13 02:28:40,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532832930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:40,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:40,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 02:28:40,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177939903] [2021-11-13 02:28:40,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:40,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:40,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:40,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:40,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:40,954 INFO L87 Difference]: Start difference. First operand 196 states and 328 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-11-13 02:28:41,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:41,116 INFO L93 Difference]: Finished difference Result 255 states and 428 transitions. [2021-11-13 02:28:41,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:28:41,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2021-11-13 02:28:41,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:41,122 INFO L225 Difference]: With dead ends: 255 [2021-11-13 02:28:41,123 INFO L226 Difference]: Without dead ends: 222 [2021-11-13 02:28:41,123 INFO L932 BasicCegarLoop]: 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 [2021-11-13 02:28:41,124 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 32 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 151.39ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:41,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 27 Invalid, 187 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [8 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 151.39ms Time] [2021-11-13 02:28:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-13 02:28:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 214. [2021-11-13 02:28:41,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.8086124401913874) internal successors, (378), 213 states have internal predecessors, (378), 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) [2021-11-13 02:28:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 378 transitions. [2021-11-13 02:28:41,134 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 378 transitions. Word has length 16 [2021-11-13 02:28:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:41,134 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 378 transitions. [2021-11-13 02:28:41,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-11-13 02:28:41,135 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 378 transitions. [2021-11-13 02:28:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:28:41,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:41,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:41,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 02:28:41,137 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash 191447716, now seen corresponding path program 1 times [2021-11-13 02:28:41,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:41,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395079332] [2021-11-13 02:28:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:41,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:41,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:41,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395079332] [2021-11-13 02:28:41,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395079332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:41,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:41,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 02:28:41,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250064535] [2021-11-13 02:28:41,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:41,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 02:28:41,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:41,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 02:28:41,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:28:41,482 INFO L87 Difference]: Start difference. First operand 214 states and 378 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2021-11-13 02:28:41,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:41,746 INFO L93 Difference]: Finished difference Result 207 states and 359 transitions. [2021-11-13 02:28:41,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:28:41,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2021-11-13 02:28:41,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:41,749 INFO L225 Difference]: With dead ends: 207 [2021-11-13 02:28:41,749 INFO L226 Difference]: Without dead ends: 207 [2021-11-13 02:28:41,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:28:41,750 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 46 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 210.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.88ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 248.96ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:41,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 20 Invalid, 303 Unknown, 0 Unchecked, 2.88ms Time], IncrementalHoareTripleChecker [23 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 248.96ms Time] [2021-11-13 02:28:41,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-13 02:28:41,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 176. [2021-11-13 02:28:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 172 states have (on average 1.7674418604651163) internal successors, (304), 175 states have internal predecessors, (304), 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) [2021-11-13 02:28:41,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 304 transitions. [2021-11-13 02:28:41,762 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 304 transitions. Word has length 19 [2021-11-13 02:28:41,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:41,763 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 304 transitions. [2021-11-13 02:28:41,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2021-11-13 02:28:41,763 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 304 transitions. [2021-11-13 02:28:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:28:41,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:41,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:41,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 02:28:41,768 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:41,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash -391026568, now seen corresponding path program 1 times [2021-11-13 02:28:41,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:41,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822177317] [2021-11-13 02:28:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:41,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:28:42,014 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:28:42,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822177317] [2021-11-13 02:28:42,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822177317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:42,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:42,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 02:28:42,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454045649] [2021-11-13 02:28:42,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:42,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 02:28:42,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:28:42,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 02:28:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:28:42,018 INFO L87 Difference]: Start difference. First operand 176 states and 304 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2021-11-13 02:28:42,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:42,195 INFO L93 Difference]: Finished difference Result 171 states and 295 transitions. [2021-11-13 02:28:42,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:28:42,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2021-11-13 02:28:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:42,198 INFO L225 Difference]: With dead ends: 171 [2021-11-13 02:28:42,198 INFO L226 Difference]: Without dead ends: 167 [2021-11-13 02:28:42,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:28:42,200 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 26 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.36ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.07ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:42,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 7 Invalid, 137 Unknown, 0 Unchecked, 1.36ms Time], IncrementalHoareTripleChecker [33 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 109.07ms Time] [2021-11-13 02:28:42,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-13 02:28:42,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 151. [2021-11-13 02:28:42,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 148 states have (on average 1.7567567567567568) internal successors, (260), 150 states have internal predecessors, (260), 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) [2021-11-13 02:28:42,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 260 transitions. [2021-11-13 02:28:42,206 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 260 transitions. Word has length 19 [2021-11-13 02:28:42,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:42,207 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 260 transitions. [2021-11-13 02:28:42,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2021-11-13 02:28:42,207 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 260 transitions. [2021-11-13 02:28:42,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 02:28:42,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:42,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:42,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 02:28:42,209 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:28:42,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:42,209 INFO L85 PathProgramCache]: Analyzing trace with hash -718982683, now seen corresponding path program 1 times [2021-11-13 02:28:42,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:28:42,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578762225] [2021-11-13 02:28:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:42,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:28:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 02:28:42,245 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 02:28:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 02:28:42,332 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 02:28:42,333 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 02:28:42,334 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2021-11-13 02:28:42,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2021-11-13 02:28:42,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2021-11-13 02:28:42,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2021-11-13 02:28:42,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2021-11-13 02:28:42,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2021-11-13 02:28:42,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (8 of 15 remaining) [2021-11-13 02:28:42,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2021-11-13 02:28:42,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2021-11-13 02:28:42,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2021-11-13 02:28:42,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2021-11-13 02:28:42,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2021-11-13 02:28:42,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2021-11-13 02:28:42,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2021-11-13 02:28:42,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2021-11-13 02:28:42,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 02:28:42,347 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:42,354 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 02:28:42,354 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:28:42,406 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.DataRaceFoundResult.getLongDescription(DataRaceFoundResult.java:136) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 02:28:42,423 INFO L158 Benchmark]: Toolchain (without parser) took 11568.95ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 77.0MB in the beginning and 99.3MB in the end (delta: -22.3MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2021-11-13 02:28:42,423 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory was 96.7MB in the beginning and 96.6MB in the end (delta: 67.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:28:42,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 897.27ms. Allocated memory is still 121.6MB. Free memory was 76.8MB in the beginning and 67.7MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 02:28:42,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.63ms. Allocated memory is still 121.6MB. Free memory was 67.7MB in the beginning and 65.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:28:42,426 INFO L158 Benchmark]: Boogie Preprocessor took 61.76ms. Allocated memory is still 121.6MB. Free memory was 65.2MB in the beginning and 63.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:28:42,427 INFO L158 Benchmark]: RCFGBuilder took 490.18ms. Allocated memory is still 121.6MB. Free memory was 63.5MB in the beginning and 48.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 02:28:42,427 INFO L158 Benchmark]: TraceAbstraction took 10017.94ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 48.5MB in the beginning and 99.3MB in the end (delta: -50.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2021-11-13 02:28:42,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory was 96.7MB in the beginning and 96.6MB in the end (delta: 67.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 897.27ms. Allocated memory is still 121.6MB. Free memory was 76.8MB in the beginning and 67.7MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.63ms. Allocated memory is still 121.6MB. Free memory was 67.7MB in the beginning and 65.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.76ms. Allocated memory is still 121.6MB. Free memory was 65.2MB in the beginning and 63.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.18ms. Allocated memory is still 121.6MB. Free memory was 63.5MB in the beginning and 48.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10017.94ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 48.5MB in the beginning and 99.3MB in the end (delta: -50.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 119 PlacesBefore, 45 PlacesAfterwards, 115 TransitionsBefore, 41 TransitionsAfterwards, 1920 CoEnabledTransitionPairs, 8 FixpointIterations, 60 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 98 TotalNumberOfCompositions, 11272 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2800, positive: 2273, positive conditional: 0, positive unconditional: 2273, negative: 527, negative conditional: 0, negative unconditional: 527, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1307, positive: 1204, positive conditional: 0, positive unconditional: 1204, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1307, positive: 1107, positive conditional: 0, positive unconditional: 1107, negative: 200, negative conditional: 0, negative unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 200, positive: 97, positive conditional: 0, positive unconditional: 97, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 452, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 301, negative conditional: 0, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2800, positive: 1069, positive conditional: 0, positive unconditional: 1069, negative: 424, negative conditional: 0, negative unconditional: 424, unknown: 1307, unknown conditional: 0, unknown unconditional: 1307] , Statistics on independence cache: Total cache size (in pairs): 223, Positive cache size: 168, Positive conditional cache size: 0, Positive unconditional cache size: 168, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55 - 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 02:28:42,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF --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 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:28:44,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:28:45,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:28:45,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:28:45,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:28:45,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:28:45,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:28:45,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:28:45,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:28:45,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:28:45,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:28:45,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:28:45,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:28:45,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:28:45,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:28:45,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:28:45,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:28:45,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:28:45,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:28:45,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:28:45,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:28:45,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:28:45,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:28:45,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:28:45,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:28:45,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:28:45,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:28:45,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:28:45,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:28:45,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:28:45,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:28:45,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:28:45,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:28:45,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:28:45,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:28:45,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:28:45,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:28:45,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:28:45,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:28:45,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:28:45,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:28:45,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2021-11-13 02:28:45,192 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:28:45,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:28:45,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:28:45,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:28:45,194 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:28:45,194 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:28:45,194 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:28:45,194 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:28:45,195 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:28:45,195 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:28:45,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:28:45,197 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:28:45,198 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:28:45,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:28:45,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:28:45,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:28:45,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:28:45,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:28:45,199 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-13 02:28:45,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:28:45,199 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:28:45,199 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:28:45,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:28:45,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:28:45,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:28:45,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:28:45,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:28:45,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:28:45,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:28:45,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:45,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:28:45,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:28:45,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:28:45,202 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:28:45,202 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:28:45,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:28:45,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:28:45,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:28:45,203 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed [2021-11-13 02:28:45,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:28:45,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:28:45,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:28:45,675 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:28:45,675 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:28:45,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2021-11-13 02:28:45,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data/2aa22cf93/a7ff09fea0054a1eb1baeadfa80b09bd/FLAG9c6f3c023 [2021-11-13 02:28:46,452 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:28:46,454 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2021-11-13 02:28:46,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data/2aa22cf93/a7ff09fea0054a1eb1baeadfa80b09bd/FLAG9c6f3c023 [2021-11-13 02:28:46,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/data/2aa22cf93/a7ff09fea0054a1eb1baeadfa80b09bd [2021-11-13 02:28:46,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:28:46,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:28:46,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:46,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:28:46,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:28:46,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:46" (1/1) ... [2021-11-13 02:28:46,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c0a921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:46, skipping insertion in model container [2021-11-13 02:28:46,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:46" (1/1) ... [2021-11-13 02:28:46,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:28:46,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:28:47,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:47,393 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:28:47,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:47,551 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:28:47,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47 WrapperNode [2021-11-13 02:28:47,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:47,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:47,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:28:47,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:28:47,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:47,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:28:47,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:28:47,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:28:47,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:28:47,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:28:47,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:28:47,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:28:47,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2021-11-13 02:28:47,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:47,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:28:47,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:28:47,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:28:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:28:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:28:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:28:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:28:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:28:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:28:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-13 02:28:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:28:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-13 02:28:47,745 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-13 02:28:47,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:28:47,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:28:47,747 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 02:28:48,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:28:48,273 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:28:48,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:48 BoogieIcfgContainer [2021-11-13 02:28:48,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:28:48,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:28:48,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:28:48,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:28:48,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:28:46" (1/3) ... [2021-11-13 02:28:48,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33933548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:48, skipping insertion in model container [2021-11-13 02:28:48,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (2/3) ... [2021-11-13 02:28:48,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33933548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:48, skipping insertion in model container [2021-11-13 02:28:48,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:48" (3/3) ... [2021-11-13 02:28:48,284 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2021-11-13 02:28:48,289 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 02:28:48,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:28:48,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-13 02:28:48,290 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 02:28:48,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,318 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,319 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,319 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,319 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,320 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,320 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,320 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,330 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,330 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,330 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,334 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,334 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:28:48,338 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 02:28:48,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:28:48,392 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:28:48,393 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-13 02:28:48,406 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-13 02:28:48,420 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 116 transitions, 237 flow [2021-11-13 02:28:48,423 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 116 transitions, 237 flow [2021-11-13 02:28:48,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 116 transitions, 237 flow [2021-11-13 02:28:48,472 INFO L129 PetriNetUnfolder]: 0/115 cut-off events. [2021-11-13 02:28:48,472 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 02:28:48,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 115 events. 0/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-11-13 02:28:48,477 INFO L116 LiptonReduction]: Number of co-enabled transitions 1920 [2021-11-13 02:29:02,615 INFO L131 LiptonReduction]: Checked pairs total: 11283 [2021-11-13 02:29:02,615 INFO L133 LiptonReduction]: Total number of compositions: 97 [2021-11-13 02:29:02,625 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 41 transitions, 87 flow [2021-11-13 02:29:02,656 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 345 states, 323 states have (on average 2.0061919504643964) internal successors, (648), 344 states have internal predecessors, (648), 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) [2021-11-13 02:29:02,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 345 states, 323 states have (on average 2.0061919504643964) internal successors, (648), 344 states have internal predecessors, (648), 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) [2021-11-13 02:29:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-13 02:29:02,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:02,665 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-13 02:29:02,666 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:02,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:02,671 INFO L85 PathProgramCache]: Analyzing trace with hash 384, now seen corresponding path program 1 times [2021-11-13 02:29:02,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:02,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114589127] [2021-11-13 02:29:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:02,684 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:02,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:02,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:02,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:29:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:02,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:29:02,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:02,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:02,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:02,795 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:02,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114589127] [2021-11-13 02:29:02,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114589127] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:02,804 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:02,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-11-13 02:29:02,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277266168] [2021-11-13 02:29:02,806 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:02,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:29:02,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:02,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:29:02,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:29:02,840 INFO L87 Difference]: Start difference. First operand has 345 states, 323 states have (on average 2.0061919504643964) internal successors, (648), 344 states have internal predecessors, (648), 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) [2021-11-13 02:29:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:02,951 INFO L93 Difference]: Finished difference Result 289 states and 542 transitions. [2021-11-13 02:29:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:29:02,954 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 [2021-11-13 02:29:02,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:02,966 INFO L225 Difference]: With dead ends: 289 [2021-11-13 02:29:02,966 INFO L226 Difference]: Without dead ends: 289 [2021-11-13 02:29:02,967 INFO L932 BasicCegarLoop]: 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 [2021-11-13 02:29:02,971 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.77ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:02,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 15 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 84.77ms Time] [2021-11-13 02:29:03,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-13 02:29:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-11-13 02:29:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 281 states have (on average 1.9288256227758007) internal successors, (542), 288 states have internal predecessors, (542), 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) [2021-11-13 02:29:03,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 542 transitions. [2021-11-13 02:29:03,080 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 542 transitions. Word has length 1 [2021-11-13 02:29:03,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:03,080 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 542 transitions. [2021-11-13 02:29:03,081 INFO L471 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) [2021-11-13 02:29:03,081 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 542 transitions. [2021-11-13 02:29:03,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 02:29:03,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:03,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:03,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-13 02:29:03,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:03,283 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:03,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:03,284 INFO L85 PathProgramCache]: Analyzing trace with hash -157356556, now seen corresponding path program 1 times [2021-11-13 02:29:03,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:03,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071714575] [2021-11-13 02:29:03,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:03,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:03,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:03,287 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:03,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:29:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:03,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:29:03,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:03,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:29:03,551 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:29:03,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2021-11-13 02:29:03,711 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:29:03,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 47 [2021-11-13 02:29:03,922 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:29:03,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 82 [2021-11-13 02:29:04,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:04,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:04,312 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:04,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071714575] [2021-11-13 02:29:04,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071714575] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:04,313 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:04,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 02:29:04,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280218666] [2021-11-13 02:29:04,313 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:04,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:29:04,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:04,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:29:04,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:29:04,315 INFO L87 Difference]: Start difference. First operand 289 states and 542 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 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) [2021-11-13 02:29:05,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:05,220 INFO L93 Difference]: Finished difference Result 608 states and 1143 transitions. [2021-11-13 02:29:05,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:29:05,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 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 9 [2021-11-13 02:29:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:05,230 INFO L225 Difference]: With dead ends: 608 [2021-11-13 02:29:05,230 INFO L226 Difference]: Without dead ends: 608 [2021-11-13 02:29:05,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:29:05,232 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 49 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 637.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.20ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 128 IncrementalHoareTripleChecker+Unchecked, 752.13ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:05,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 18 Invalid, 399 Unknown, 0 Unchecked, 7.20ms Time], IncrementalHoareTripleChecker [35 Valid, 236 Invalid, 0 Unknown, 128 Unchecked, 752.13ms Time] [2021-11-13 02:29:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2021-11-13 02:29:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 348. [2021-11-13 02:29:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 340 states have (on average 1.9352941176470588) internal successors, (658), 347 states have internal predecessors, (658), 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) [2021-11-13 02:29:05,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 658 transitions. [2021-11-13 02:29:05,281 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 658 transitions. Word has length 9 [2021-11-13 02:29:05,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:05,281 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 658 transitions. [2021-11-13 02:29:05,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 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) [2021-11-13 02:29:05,282 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 658 transitions. [2021-11-13 02:29:05,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 02:29:05,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:05,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:05,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:05,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:05,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:05,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash -2089137785, now seen corresponding path program 1 times [2021-11-13 02:29:05,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:05,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043631897] [2021-11-13 02:29:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:05,501 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:05,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:05,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:05,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:29:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:05,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:29:05,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:05,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:29:05,690 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:29:05,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 02:29:05,800 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:29:05,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 60 [2021-11-13 02:29:05,962 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:29:05,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 97 [2021-11-13 02:29:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:06,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:06,289 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:06,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043631897] [2021-11-13 02:29:06,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043631897] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:06,289 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:06,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 02:29:06,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486771651] [2021-11-13 02:29:06,290 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:06,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:29:06,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:06,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:29:06,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:29:06,291 INFO L87 Difference]: Start difference. First operand 348 states and 658 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 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) [2021-11-13 02:29:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:06,886 INFO L93 Difference]: Finished difference Result 414 states and 781 transitions. [2021-11-13 02:29:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:29:06,888 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 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 9 [2021-11-13 02:29:06,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:06,891 INFO L225 Difference]: With dead ends: 414 [2021-11-13 02:29:06,891 INFO L226 Difference]: Without dead ends: 414 [2021-11-13 02:29:06,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:29:06,893 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 29 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 417.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.83ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 488.62ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:06,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 278 Unknown, 0 Unchecked, 2.83ms Time], IncrementalHoareTripleChecker [11 Valid, 215 Invalid, 0 Unknown, 52 Unchecked, 488.62ms Time] [2021-11-13 02:29:06,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-13 02:29:06,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 395. [2021-11-13 02:29:06,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 387 states have (on average 1.9431524547803618) internal successors, (752), 394 states have internal predecessors, (752), 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) [2021-11-13 02:29:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 752 transitions. [2021-11-13 02:29:06,923 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 752 transitions. Word has length 9 [2021-11-13 02:29:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:06,923 INFO L470 AbstractCegarLoop]: Abstraction has 395 states and 752 transitions. [2021-11-13 02:29:06,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 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) [2021-11-13 02:29:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 752 transitions. [2021-11-13 02:29:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 02:29:06,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:06,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:06,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:07,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:07,139 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:07,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:07,139 INFO L85 PathProgramCache]: Analyzing trace with hash -245483072, now seen corresponding path program 1 times [2021-11-13 02:29:07,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:07,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767826443] [2021-11-13 02:29:07,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:07,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:07,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:07,141 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:07,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:29:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:07,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:29:07,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:07,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:29:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:07,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:07,290 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:07,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767826443] [2021-11-13 02:29:07,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767826443] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:07,290 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:07,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:29:07,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49886684] [2021-11-13 02:29:07,291 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:07,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:29:07,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:07,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:29:07,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:29:07,293 INFO L87 Difference]: Start difference. First operand 395 states and 752 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-11-13 02:29:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:07,359 INFO L93 Difference]: Finished difference Result 188 states and 316 transitions. [2021-11-13 02:29:07,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:29:07,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-11-13 02:29:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:07,361 INFO L225 Difference]: With dead ends: 188 [2021-11-13 02:29:07,361 INFO L226 Difference]: Without dead ends: 188 [2021-11-13 02:29:07,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:29:07,363 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.59ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.79ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:07,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 30 Invalid, 23 Unknown, 0 Unchecked, 0.59ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 62.79ms Time] [2021-11-13 02:29:07,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-13 02:29:07,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2021-11-13 02:29:07,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 182 states have (on average 1.7362637362637363) internal successors, (316), 187 states have internal predecessors, (316), 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) [2021-11-13 02:29:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 316 transitions. [2021-11-13 02:29:07,374 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 316 transitions. Word has length 12 [2021-11-13 02:29:07,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:07,374 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 316 transitions. [2021-11-13 02:29:07,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-11-13 02:29:07,375 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 316 transitions. [2021-11-13 02:29:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 02:29:07,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:07,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:07,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:07,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:07,588 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:07,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:07,589 INFO L85 PathProgramCache]: Analyzing trace with hash -67927635, now seen corresponding path program 1 times [2021-11-13 02:29:07,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:07,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777071171] [2021-11-13 02:29:07,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:07,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:07,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:07,590 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:07,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:29:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:07,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:29:07,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:07,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:29:07,747 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:29:07,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 02:29:07,806 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:29:07,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 59 [2021-11-13 02:29:07,900 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:29:07,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 87 [2021-11-13 02:29:07,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:07,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:08,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:08,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777071171] [2021-11-13 02:29:08,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777071171] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:08,081 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:08,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 02:29:08,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376584070] [2021-11-13 02:29:08,082 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:08,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:29:08,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:08,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:29:08,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:29:08,083 INFO L87 Difference]: Start difference. First operand 188 states and 316 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-13 02:29:08,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:08,321 INFO L93 Difference]: Finished difference Result 209 states and 354 transitions. [2021-11-13 02:29:08,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:29:08,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2021-11-13 02:29:08,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:08,323 INFO L225 Difference]: With dead ends: 209 [2021-11-13 02:29:08,323 INFO L226 Difference]: Without dead ends: 196 [2021-11-13 02:29:08,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:29:08,324 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 196.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.37ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.65ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:08,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 106 Unknown, 0 Unchecked, 1.37ms Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 229.65ms Time] [2021-11-13 02:29:08,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-13 02:29:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-11-13 02:29:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.7172774869109948) internal successors, (328), 195 states have internal predecessors, (328), 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) [2021-11-13 02:29:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 328 transitions. [2021-11-13 02:29:08,333 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 328 transitions. Word has length 15 [2021-11-13 02:29:08,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:08,334 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 328 transitions. [2021-11-13 02:29:08,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-13 02:29:08,334 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 328 transitions. [2021-11-13 02:29:08,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 02:29:08,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:08,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:08,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 02:29:08,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:08,548 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:08,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:08,549 INFO L85 PathProgramCache]: Analyzing trace with hash -111670120, now seen corresponding path program 1 times [2021-11-13 02:29:08,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:08,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441509114] [2021-11-13 02:29:08,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:08,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:08,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:08,550 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:08,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:29:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:08,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:29:08,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:08,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:29:08,718 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:29:08,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-13 02:29:08,793 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:29:08,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 45 [2021-11-13 02:29:08,907 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:29:08,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 68 [2021-11-13 02:29:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:09,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:09,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:09,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441509114] [2021-11-13 02:29:09,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441509114] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:09,175 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:09,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 02:29:09,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853833850] [2021-11-13 02:29:09,176 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:09,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:29:09,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:09,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:29:09,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:29:09,177 INFO L87 Difference]: Start difference. First operand 196 states and 328 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-11-13 02:29:09,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:09,696 INFO L93 Difference]: Finished difference Result 255 states and 428 transitions. [2021-11-13 02:29:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:29:09,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 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 16 [2021-11-13 02:29:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:09,698 INFO L225 Difference]: With dead ends: 255 [2021-11-13 02:29:09,698 INFO L226 Difference]: Without dead ends: 222 [2021-11-13 02:29:09,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:29:09,700 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 32 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 352.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.60ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 410.75ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:09,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 14 Invalid, 279 Unknown, 0 Unchecked, 2.60ms Time], IncrementalHoareTripleChecker [8 Valid, 180 Invalid, 0 Unknown, 91 Unchecked, 410.75ms Time] [2021-11-13 02:29:09,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-13 02:29:09,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 214. [2021-11-13 02:29:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.8086124401913874) internal successors, (378), 213 states have internal predecessors, (378), 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) [2021-11-13 02:29:09,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 378 transitions. [2021-11-13 02:29:09,711 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 378 transitions. Word has length 16 [2021-11-13 02:29:09,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:09,711 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 378 transitions. [2021-11-13 02:29:09,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-11-13 02:29:09,712 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 378 transitions. [2021-11-13 02:29:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:29:09,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:09,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:09,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-13 02:29:09,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:09,928 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:09,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1910810771, now seen corresponding path program 1 times [2021-11-13 02:29:09,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:09,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517148054] [2021-11-13 02:29:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:09,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:09,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:09,929 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:09,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:29:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:10,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:29:10,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:10,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 608 treesize of output 576 [2021-11-13 02:29:10,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:29:10,283 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:29:10,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-13 02:29:10,360 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:29:10,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 43 [2021-11-13 02:29:10,524 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:29:10,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 74 [2021-11-13 02:29:10,778 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-13 02:29:10,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 110 [2021-11-13 02:29:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:10,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:29,865 WARN L227 SmtUtils]: Spent 8.75s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:29:34,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:34,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:34,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517148054] [2021-11-13 02:29:34,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517148054] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:34,549 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:34,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 02:29:34,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191165056] [2021-11-13 02:29:34,550 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:34,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 02:29:34,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:34,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 02:29:34,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=62, Unknown=6, NotChecked=0, Total=110 [2021-11-13 02:29:34,551 INFO L87 Difference]: Start difference. First operand 214 states and 378 transitions. Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2021-11-13 02:29:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:35,240 INFO L93 Difference]: Finished difference Result 304 states and 502 transitions. [2021-11-13 02:29:35,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:29:35,241 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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 19 [2021-11-13 02:29:35,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:35,244 INFO L225 Difference]: With dead ends: 304 [2021-11-13 02:29:35,244 INFO L226 Difference]: Without dead ends: 304 [2021-11-13 02:29:35,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=42, Invalid=62, Unknown=6, NotChecked=0, Total=110 [2021-11-13 02:29:35,245 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 64 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 485.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.59ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 176 IncrementalHoareTripleChecker+Unchecked, 558.92ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:35,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 9 Invalid, 378 Unknown, 0 Unchecked, 3.59ms Time], IncrementalHoareTripleChecker [16 Valid, 186 Invalid, 0 Unknown, 176 Unchecked, 558.92ms Time] [2021-11-13 02:29:35,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-13 02:29:35,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 211. [2021-11-13 02:29:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.8058252427184467) internal successors, (372), 210 states have internal predecessors, (372), 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) [2021-11-13 02:29:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 372 transitions. [2021-11-13 02:29:35,258 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 372 transitions. Word has length 19 [2021-11-13 02:29:35,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:35,258 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 372 transitions. [2021-11-13 02:29:35,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2021-11-13 02:29:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 372 transitions. [2021-11-13 02:29:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:29:35,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:35,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:35,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:35,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:35,479 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:35,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1910917721, now seen corresponding path program 2 times [2021-11-13 02:29:35,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:35,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676210711] [2021-11-13 02:29:35,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:29:35,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:35,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:35,483 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:35,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:29:35,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:29:35,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:29:35,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:29:35,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:35,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 247 [2021-11-13 02:29:35,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:29:35,832 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:29:35,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-13 02:29:35,938 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:29:35,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 46 [2021-11-13 02:29:36,126 INFO L354 Elim1Store]: treesize reduction 107, result has 24.6 percent of original size [2021-11-13 02:29:36,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 66 [2021-11-13 02:29:36,289 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:29:36,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 82 [2021-11-13 02:29:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:36,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:38,577 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_263| (_ BitVec 1))) (= (_ bv0 1) (bvneg (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_263|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) |c_ULTIMATE.start_main_~z~0#1.offset|))))) (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_263| (_ BitVec 1))) (= (_ bv0 1) (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_263|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32))))) (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_263| (_ BitVec 1))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_263|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~z~0#1.offset|)))))))) is different from false [2021-11-13 02:29:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:41,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:41,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676210711] [2021-11-13 02:29:41,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676210711] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:41,072 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:41,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:29:41,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187698283] [2021-11-13 02:29:41,072 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:41,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:29:41,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:41,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:29:41,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=71, Unknown=1, NotChecked=18, Total=132 [2021-11-13 02:29:41,074 INFO L87 Difference]: Start difference. First operand 211 states and 372 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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) [2021-11-13 02:29:45,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:45,233 INFO L93 Difference]: Finished difference Result 277 states and 484 transitions. [2021-11-13 02:29:45,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:29:45,234 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 19 [2021-11-13 02:29:45,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:45,237 INFO L225 Difference]: With dead ends: 277 [2021-11-13 02:29:45,237 INFO L226 Difference]: Without dead ends: 277 [2021-11-13 02:29:45,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 4 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=52, Invalid=83, Unknown=1, NotChecked=20, Total=156 [2021-11-13 02:29:45,239 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 35 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 271.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.17ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 140 IncrementalHoareTripleChecker+Unchecked, 315.19ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:45,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 9 Invalid, 275 Unknown, 0 Unchecked, 2.17ms Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 140 Unchecked, 315.19ms Time] [2021-11-13 02:29:45,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-13 02:29:45,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 214. [2021-11-13 02:29:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.8086124401913874) internal successors, (378), 213 states have internal predecessors, (378), 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) [2021-11-13 02:29:45,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 378 transitions. [2021-11-13 02:29:45,251 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 378 transitions. Word has length 19 [2021-11-13 02:29:45,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:45,251 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 378 transitions. [2021-11-13 02:29:45,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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) [2021-11-13 02:29:45,252 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 378 transitions. [2021-11-13 02:29:45,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:29:45,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:45,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:45,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:45,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:45,471 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:29:45,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:45,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2050040517, now seen corresponding path program 3 times [2021-11-13 02:29:45,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:45,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096064496] [2021-11-13 02:29:45,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 02:29:45,472 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:45,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:45,474 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:45,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:29:45,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-13 02:29:45,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:29:45,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:29:45,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:45,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2021-11-13 02:29:45,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:29:45,796 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:29:45,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-13 02:29:45,935 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:29:45,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2021-11-13 02:29:46,146 INFO L354 Elim1Store]: treesize reduction 107, result has 24.6 percent of original size [2021-11-13 02:29:46,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 84 [2021-11-13 02:29:46,356 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:29:46,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 96 [2021-11-13 02:29:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:46,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:02,854 WARN L227 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:30:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:30:07,305 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:07,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096064496] [2021-11-13 02:30:07,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096064496] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:07,306 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:07,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:30:07,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14834445] [2021-11-13 02:30:07,306 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:07,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:30:07,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:07,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:30:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=82, Unknown=5, NotChecked=0, Total=132 [2021-11-13 02:30:07,308 INFO L87 Difference]: Start difference. First operand 214 states and 378 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2021-11-13 02:30:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:07,898 INFO L93 Difference]: Finished difference Result 291 states and 500 transitions. [2021-11-13 02:30:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:30:07,899 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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 19 [2021-11-13 02:30:07,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:07,902 INFO L225 Difference]: With dead ends: 291 [2021-11-13 02:30:07,902 INFO L226 Difference]: Without dead ends: 291 [2021-11-13 02:30:07,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=45, Invalid=82, Unknown=5, NotChecked=0, Total=132 [2021-11-13 02:30:07,903 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 38 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 397.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.93ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 454.58ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:07,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 9 Invalid, 210 Unknown, 0 Unchecked, 1.93ms Time], IncrementalHoareTripleChecker [6 Valid, 167 Invalid, 0 Unknown, 37 Unchecked, 454.58ms Time] [2021-11-13 02:30:07,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-13 02:30:07,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 215. [2021-11-13 02:30:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.8095238095238095) internal successors, (380), 214 states have internal predecessors, (380), 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) [2021-11-13 02:30:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 380 transitions. [2021-11-13 02:30:07,915 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 380 transitions. Word has length 19 [2021-11-13 02:30:07,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:07,916 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 380 transitions. [2021-11-13 02:30:07,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2021-11-13 02:30:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 380 transitions. [2021-11-13 02:30:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:30:07,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:07,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:07,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:08,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:08,137 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:30:08,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:08,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1988266197, now seen corresponding path program 4 times [2021-11-13 02:30:08,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:08,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918218749] [2021-11-13 02:30:08,139 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 02:30:08,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:08,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:08,140 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:08,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 02:30:08,253 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 02:30:08,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:30:08,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:30:08,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:08,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 635 treesize of output 619 [2021-11-13 02:30:08,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:30:08,486 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:30:08,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2021-11-13 02:30:08,603 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:30:08,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 50 [2021-11-13 02:30:08,839 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:30:08,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 80 [2021-11-13 02:30:09,117 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-13 02:30:09,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 113 [2021-11-13 02:30:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:30:09,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:33,470 WARN L227 SmtUtils]: Spent 14.03s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:30:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:30:44,349 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:44,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918218749] [2021-11-13 02:30:44,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918218749] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:44,349 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:44,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:30:44,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898327346] [2021-11-13 02:30:44,350 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:44,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:30:44,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:44,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:30:44,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=74, Unknown=7, NotChecked=0, Total=132 [2021-11-13 02:30:44,351 INFO L87 Difference]: Start difference. First operand 215 states and 380 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2021-11-13 02:30:44,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:44,723 INFO L93 Difference]: Finished difference Result 321 states and 558 transitions. [2021-11-13 02:30:44,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:30:44,723 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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 19 [2021-11-13 02:30:44,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:44,726 INFO L225 Difference]: With dead ends: 321 [2021-11-13 02:30:44,727 INFO L226 Difference]: Without dead ends: 321 [2021-11-13 02:30:44,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 35.2s TimeCoverageRelationStatistics Valid=51, Invalid=74, Unknown=7, NotChecked=0, Total=132 [2021-11-13 02:30:44,728 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 24 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 215.15ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:44,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 9 Invalid, 157 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 64 Unchecked, 215.15ms Time] [2021-11-13 02:30:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-13 02:30:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 216. [2021-11-13 02:30:44,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.8104265402843602) internal successors, (382), 215 states have internal predecessors, (382), 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) [2021-11-13 02:30:44,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 382 transitions. [2021-11-13 02:30:44,740 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 382 transitions. Word has length 19 [2021-11-13 02:30:44,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:44,741 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 382 transitions. [2021-11-13 02:30:44,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2021-11-13 02:30:44,741 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 382 transitions. [2021-11-13 02:30:44,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:30:44,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:44,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:44,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:44,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:44,964 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:30:44,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:44,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1988373147, now seen corresponding path program 5 times [2021-11-13 02:30:44,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:44,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372687049] [2021-11-13 02:30:44,966 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 02:30:44,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:44,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:44,967 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:45,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 02:30:45,098 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:30:45,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:30:45,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:30:45,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:45,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2021-11-13 02:30:45,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:30:45,249 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:30:45,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-13 02:30:45,352 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:30:45,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 53 [2021-11-13 02:30:45,585 INFO L354 Elim1Store]: treesize reduction 107, result has 24.6 percent of original size [2021-11-13 02:30:45,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 81 [2021-11-13 02:30:45,772 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:30:45,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 88 [2021-11-13 02:30:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:30:45,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:48,028 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_t_funThread1of1ForFork0_#t~nondet31_269| (_ BitVec 1)) (~x~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_269|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~z~0#1.offset|)))))) (forall ((|v_t_funThread1of1ForFork0_#t~nondet31_269| (_ BitVec 1)) (~x~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_269|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) |c_ULTIMATE.start_main_~z~0#1.offset|)))) (forall ((|v_t_funThread1of1ForFork0_#t~nondet31_269| (_ BitVec 1)) (~x~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_269|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32))))))) is different from false [2021-11-13 02:30:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:30:50,551 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:50,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372687049] [2021-11-13 02:30:50,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372687049] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:50,551 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:50,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:30:50,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782903064] [2021-11-13 02:30:50,552 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:50,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:30:50,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:30:50,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=71, Unknown=1, NotChecked=18, Total=132 [2021-11-13 02:30:50,553 INFO L87 Difference]: Start difference. First operand 216 states and 382 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2021-11-13 02:30:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:54,442 INFO L93 Difference]: Finished difference Result 290 states and 499 transitions. [2021-11-13 02:30:54,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:30:54,443 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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 19 [2021-11-13 02:30:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:54,446 INFO L225 Difference]: With dead ends: 290 [2021-11-13 02:30:54,446 INFO L226 Difference]: Without dead ends: 290 [2021-11-13 02:30:54,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 4 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=52, Invalid=83, Unknown=1, NotChecked=20, Total=156 [2021-11-13 02:30:54,448 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 45 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 286.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.65ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 223 IncrementalHoareTripleChecker+Unchecked, 329.40ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:54,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 9 Invalid, 361 Unknown, 0 Unchecked, 1.65ms Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 223 Unchecked, 329.40ms Time] [2021-11-13 02:30:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-13 02:30:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 217. [2021-11-13 02:30:54,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.8113207547169812) internal successors, (384), 216 states have internal predecessors, (384), 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) [2021-11-13 02:30:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 384 transitions. [2021-11-13 02:30:54,459 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 384 transitions. Word has length 19 [2021-11-13 02:30:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:54,460 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 384 transitions. [2021-11-13 02:30:54,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2021-11-13 02:30:54,460 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 384 transitions. [2021-11-13 02:30:54,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:30:54,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:54,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:54,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:54,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:54,676 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:30:54,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:54,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1215546473, now seen corresponding path program 6 times [2021-11-13 02:30:54,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:54,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512844287] [2021-11-13 02:30:54,678 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-13 02:30:54,678 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:54,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:54,679 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:54,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 02:30:54,819 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-13 02:30:54,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:30:54,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:30:54,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:54,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 129 [2021-11-13 02:30:54,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:30:54,962 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:30:54,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-13 02:30:55,085 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:30:55,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2021-11-13 02:30:55,274 INFO L354 Elim1Store]: treesize reduction 107, result has 24.6 percent of original size [2021-11-13 02:30:55,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 91 [2021-11-13 02:30:55,492 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:30:55,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 99 [2021-11-13 02:30:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:30:55,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:57,846 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_271| (_ BitVec 1))) (= (_ bv0 1) (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_271|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)))))) (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_271| (_ BitVec 1))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_271|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~z~0#1.offset|))))))) (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_271| (_ BitVec 1))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_271|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) |c_ULTIMATE.start_main_~z~0#1.offset|))))))) is different from false [2021-11-13 02:31:00,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:31:00,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:00,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512844287] [2021-11-13 02:31:00,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512844287] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:31:00,186 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:31:00,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:31:00,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064038475] [2021-11-13 02:31:00,186 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:00,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:31:00,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:00,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:31:00,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=71, Unknown=1, NotChecked=18, Total=132 [2021-11-13 02:31:00,188 INFO L87 Difference]: Start difference. First operand 217 states and 384 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 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) [2021-11-13 02:31:00,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:00,681 INFO L93 Difference]: Finished difference Result 285 states and 489 transitions. [2021-11-13 02:31:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:31:00,682 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 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 19 [2021-11-13 02:31:00,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:00,685 INFO L225 Difference]: With dead ends: 285 [2021-11-13 02:31:00,685 INFO L226 Difference]: Without dead ends: 285 [2021-11-13 02:31:00,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 3 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=42, Invalid=71, Unknown=1, NotChecked=18, Total=132 [2021-11-13 02:31:00,686 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 39 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 322.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 370.87ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:00,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 9 Invalid, 276 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 91 Unchecked, 370.87ms Time] [2021-11-13 02:31:00,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-11-13 02:31:00,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 215. [2021-11-13 02:31:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.8095238095238095) internal successors, (380), 214 states have internal predecessors, (380), 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) [2021-11-13 02:31:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 380 transitions. [2021-11-13 02:31:00,698 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 380 transitions. Word has length 19 [2021-11-13 02:31:00,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:00,698 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 380 transitions. [2021-11-13 02:31:00,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 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) [2021-11-13 02:31:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 380 transitions. [2021-11-13 02:31:00,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:31:00,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:00,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:00,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-13 02:31:00,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:00,917 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:31:00,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:00,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1153772153, now seen corresponding path program 7 times [2021-11-13 02:31:00,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:00,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573382635] [2021-11-13 02:31:00,918 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-13 02:31:00,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:00,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:00,920 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:00,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 02:31:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:01,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:31:01,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:01,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 639 treesize of output 635 [2021-11-13 02:31:01,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:31:01,283 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:31:01,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-13 02:31:01,380 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:31:01,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 39 [2021-11-13 02:31:01,564 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:31:01,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 67 [2021-11-13 02:31:01,741 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-13 02:31:01,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 97 [2021-11-13 02:31:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:31:01,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:26,098 WARN L227 SmtUtils]: Spent 14.03s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:31:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:31:30,743 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:30,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573382635] [2021-11-13 02:31:30,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573382635] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:31:30,744 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:31:30,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 02:31:30,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796946919] [2021-11-13 02:31:30,744 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:30,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 02:31:30,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:30,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 02:31:30,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=62, Unknown=6, NotChecked=0, Total=110 [2021-11-13 02:31:30,746 INFO L87 Difference]: Start difference. First operand 215 states and 380 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-11-13 02:31:30,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:30,938 INFO L93 Difference]: Finished difference Result 220 states and 385 transitions. [2021-11-13 02:31:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:31:30,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 19 [2021-11-13 02:31:30,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:30,940 INFO L225 Difference]: With dead ends: 220 [2021-11-13 02:31:30,940 INFO L226 Difference]: Without dead ends: 220 [2021-11-13 02:31:30,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=42, Invalid=62, Unknown=6, NotChecked=0, Total=110 [2021-11-13 02:31:30,942 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.34ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 73.53ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:30,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 72 Unknown, 0 Unchecked, 0.34ms Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 44 Unchecked, 73.53ms Time] [2021-11-13 02:31:30,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-13 02:31:30,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2021-11-13 02:31:30,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.8095238095238095) internal successors, (380), 214 states have internal predecessors, (380), 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) [2021-11-13 02:31:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 380 transitions. [2021-11-13 02:31:30,951 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 380 transitions. Word has length 19 [2021-11-13 02:31:30,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:30,951 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 380 transitions. [2021-11-13 02:31:30,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-11-13 02:31:30,952 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 380 transitions. [2021-11-13 02:31:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:31:30,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:30,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:30,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:31,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:31,169 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:31:31,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:31,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1153879103, now seen corresponding path program 8 times [2021-11-13 02:31:31,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:31,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52554075] [2021-11-13 02:31:31,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:31:31,170 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:31,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:31,170 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:31,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 02:31:31,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:31:31,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:31:31,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:31:31,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:31,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 81 [2021-11-13 02:31:31,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:31:31,399 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:31:31,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-13 02:31:31,463 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:31:31,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 38 [2021-11-13 02:31:31,589 INFO L354 Elim1Store]: treesize reduction 107, result has 24.6 percent of original size [2021-11-13 02:31:31,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 62 [2021-11-13 02:31:31,760 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:31:31,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 89 [2021-11-13 02:31:31,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:31:31,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:34,092 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_275| (_ BitVec 1))) (= (_ bv0 1) (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_275|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~z~0#1.offset|))))) (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_275| (_ BitVec 1))) (= (_ bv0 1) (bvneg (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_275|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32))))))) (forall ((~x~0.offset (_ BitVec 32)) (|v_t_funThread1of1ForFork0_#t~nondet31_275| (_ BitVec 1))) (= (_ bv0 1) (bvneg (bvneg (select (store (select (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) ~x~0.offset |v_t_funThread1of1ForFork0_#t~nondet31_275|)) |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |c_ULTIMATE.start_main_~z~0#1.offset| (_ bv3 32)) (_ bv0 1)) |c_ULTIMATE.start_main_~z~0#1.offset|)))))) is different from false [2021-11-13 02:31:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:31:34,411 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:34,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52554075] [2021-11-13 02:31:34,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52554075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:31:34,411 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:31:34,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 02:31:34,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199010756] [2021-11-13 02:31:34,411 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:34,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 02:31:34,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:34,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 02:31:34,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=58, Unknown=1, NotChecked=16, Total=110 [2021-11-13 02:31:34,413 INFO L87 Difference]: Start difference. First operand 215 states and 380 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-11-13 02:31:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:35,109 INFO L93 Difference]: Finished difference Result 208 states and 361 transitions. [2021-11-13 02:31:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:31:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 19 [2021-11-13 02:31:35,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:35,112 INFO L225 Difference]: With dead ends: 208 [2021-11-13 02:31:35,112 INFO L226 Difference]: Without dead ends: 208 [2021-11-13 02:31:35,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=45, Invalid=68, Unknown=1, NotChecked=18, Total=132 [2021-11-13 02:31:35,113 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 52 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 530.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.00ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 614.42ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:35,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 4 Invalid, 365 Unknown, 0 Unchecked, 2.00ms Time], IncrementalHoareTripleChecker [31 Valid, 285 Invalid, 0 Unknown, 49 Unchecked, 614.42ms Time] [2021-11-13 02:31:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-13 02:31:35,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 176. [2021-11-13 02:31:35,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 172 states have (on average 1.7674418604651163) internal successors, (304), 175 states have internal predecessors, (304), 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) [2021-11-13 02:31:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 304 transitions. [2021-11-13 02:31:35,121 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 304 transitions. Word has length 19 [2021-11-13 02:31:35,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:35,122 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 304 transitions. [2021-11-13 02:31:35,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-11-13 02:31:35,122 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 304 transitions. [2021-11-13 02:31:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:31:35,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:35,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:35,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:35,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:35,336 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:31:35,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:35,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1518898579, now seen corresponding path program 1 times [2021-11-13 02:31:35,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:35,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509797365] [2021-11-13 02:31:35,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:35,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:35,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:35,338 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:35,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 02:31:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:35,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:31:35,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:35,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 106 [2021-11-13 02:31:35,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:31:35,601 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:31:35,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 02:31:35,664 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:31:35,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 56 [2021-11-13 02:31:35,832 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:31:35,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 100 [2021-11-13 02:31:36,079 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-13 02:31:36,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 129 treesize of output 149 [2021-11-13 02:31:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:31:36,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:38,332 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)) (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset)))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))) c_~x~0.base) c_~x~0.offset))) (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)) (bvneg (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))) c_~x~0.base) (bvadd c_~x~0.offset (_ bv1 32))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))) c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset))))))) (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))) is different from false [2021-11-13 02:31:54,458 WARN L227 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:32:08,975 WARN L227 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 63 DAG size of output: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:32:26,667 WARN L227 SmtUtils]: Spent 7.99s on a formula simplification. DAG size of input: 59 DAG size of output: 50 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:32:26,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:32:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:32:26,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:26,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509797365] [2021-11-13 02:32:26,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509797365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:26,737 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:26,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:32:26,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878999195] [2021-11-13 02:32:26,737 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:26,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:32:26,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:32:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=76, Unknown=13, NotChecked=20, Total=156 [2021-11-13 02:32:26,739 INFO L87 Difference]: Start difference. First operand 176 states and 304 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-11-13 02:32:31,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:31,208 INFO L93 Difference]: Finished difference Result 212 states and 368 transitions. [2021-11-13 02:32:31,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:32:31,209 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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 19 [2021-11-13 02:32:31,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:31,211 INFO L225 Difference]: With dead ends: 212 [2021-11-13 02:32:31,211 INFO L226 Difference]: Without dead ends: 208 [2021-11-13 02:32:31,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 54.7s TimeCoverageRelationStatistics Valid=72, Invalid=101, Unknown=13, NotChecked=24, Total=210 [2021-11-13 02:32:31,213 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 176.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 206.39ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:31,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 194 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 83 Unchecked, 206.39ms Time] [2021-11-13 02:32:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-13 02:32:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 178. [2021-11-13 02:32:31,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 174 states have (on average 1.7701149425287357) internal successors, (308), 177 states have internal predecessors, (308), 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) [2021-11-13 02:32:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 308 transitions. [2021-11-13 02:32:31,220 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 308 transitions. Word has length 19 [2021-11-13 02:32:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:31,221 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 308 transitions. [2021-11-13 02:32:31,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-11-13 02:32:31,221 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 308 transitions. [2021-11-13 02:32:31,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:32:31,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:31,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:32:31,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:31,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:31,436 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:32:31,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1518909739, now seen corresponding path program 2 times [2021-11-13 02:32:31,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:31,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760932293] [2021-11-13 02:32:31,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:32:31,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:31,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:31,440 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:31,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 02:32:31,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:32:31,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:32:31,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:32:31,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:31,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 81 [2021-11-13 02:32:31,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:32:31,679 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:32:31,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-13 02:32:31,756 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:32:31,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 58 [2021-11-13 02:32:31,900 INFO L354 Elim1Store]: treesize reduction 107, result has 24.6 percent of original size [2021-11-13 02:32:31,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 101 [2021-11-13 02:32:32,182 INFO L354 Elim1Store]: treesize reduction 160, result has 22.0 percent of original size [2021-11-13 02:32:32,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 138 treesize of output 158 [2021-11-13 02:32:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:32:32,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:45,520 WARN L227 SmtUtils]: Spent 7.72s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:33:11,498 WARN L227 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 58 DAG size of output: 28 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 02:33:11,498 INFO L354 Elim1Store]: treesize reduction 181, result has 19.6 percent of original size [2021-11-13 02:33:11,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 71 treesize of output 71 [2021-11-13 02:33:11,524 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:33:11,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 65 [2021-11-13 02:33:11,552 INFO L354 Elim1Store]: treesize reduction 110, result has 0.9 percent of original size [2021-11-13 02:33:11,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 71 treesize of output 1 [2021-11-13 02:33:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:33:11,588 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:11,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760932293] [2021-11-13 02:33:11,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760932293] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:11,588 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:11,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:33:11,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356795279] [2021-11-13 02:33:11,590 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:11,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:33:11,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:11,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:33:11,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=103, Unknown=8, NotChecked=0, Total=156 [2021-11-13 02:33:11,592 INFO L87 Difference]: Start difference. First operand 178 states and 308 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-11-13 02:33:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:11,801 INFO L93 Difference]: Finished difference Result 188 states and 323 transitions. [2021-11-13 02:33:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:33:11,802 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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 19 [2021-11-13 02:33:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:11,803 INFO L225 Difference]: With dead ends: 188 [2021-11-13 02:33:11,803 INFO L226 Difference]: Without dead ends: 185 [2021-11-13 02:33:11,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=56, Invalid=118, Unknown=8, NotChecked=0, Total=182 [2021-11-13 02:33:11,805 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.78ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 210 IncrementalHoareTripleChecker+Unchecked, 123.17ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:11,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 13 Invalid, 272 Unknown, 0 Unchecked, 0.78ms Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 210 Unchecked, 123.17ms Time] [2021-11-13 02:33:11,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-13 02:33:11,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 178. [2021-11-13 02:33:11,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 174 states have (on average 1.7586206896551724) internal successors, (306), 177 states have internal predecessors, (306), 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) [2021-11-13 02:33:11,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 306 transitions. [2021-11-13 02:33:11,811 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 306 transitions. Word has length 19 [2021-11-13 02:33:11,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:11,812 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 306 transitions. [2021-11-13 02:33:11,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-11-13 02:33:11,812 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 306 transitions. [2021-11-13 02:33:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:33:11,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:11,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:33:11,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:12,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:12,026 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:33:12,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1519226869, now seen corresponding path program 3 times [2021-11-13 02:33:12,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:12,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883184121] [2021-11-13 02:33:12,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 02:33:12,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:12,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:12,028 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:12,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 02:33:12,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-13 02:33:12,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:33:12,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:33:12,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:12,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 81 [2021-11-13 02:33:12,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:33:12,266 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:33:12,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-13 02:33:12,360 INFO L354 Elim1Store]: treesize reduction 58, result has 28.4 percent of original size [2021-11-13 02:33:12,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 66 [2021-11-13 02:33:12,543 INFO L354 Elim1Store]: treesize reduction 101, result has 24.6 percent of original size [2021-11-13 02:33:12,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 112 [2021-11-13 02:33:12,883 INFO L354 Elim1Store]: treesize reduction 160, result has 22.0 percent of original size [2021-11-13 02:33:12,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 162 [2021-11-13 02:33:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:33:13,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:26,127 INFO L354 Elim1Store]: treesize reduction 82, result has 26.8 percent of original size [2021-11-13 02:33:26,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 60 [2021-11-13 02:33:26,137 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:33:26,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-13 02:33:26,151 INFO L354 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2021-11-13 02:33:26,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 1 [2021-11-13 02:33:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:33:26,190 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:26,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883184121] [2021-11-13 02:33:26,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883184121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:26,190 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:26,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:33:26,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572093653] [2021-11-13 02:33:26,190 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:26,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:33:26,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:26,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:33:26,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=109, Unknown=3, NotChecked=0, Total=156 [2021-11-13 02:33:26,192 INFO L87 Difference]: Start difference. First operand 178 states and 306 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-11-13 02:33:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:26,467 INFO L93 Difference]: Finished difference Result 182 states and 312 transitions. [2021-11-13 02:33:26,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 02:33:26,468 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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 19 [2021-11-13 02:33:26,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:26,469 INFO L225 Difference]: With dead ends: 182 [2021-11-13 02:33:26,469 INFO L226 Difference]: Without dead ends: 181 [2021-11-13 02:33:26,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=53, Invalid=126, Unknown=3, NotChecked=0, Total=182 [2021-11-13 02:33:26,470 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 184.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 215.06ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:26,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 17 Invalid, 217 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 87 Unchecked, 215.06ms Time] [2021-11-13 02:33:26,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-13 02:33:26,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2021-11-13 02:33:26,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 168 states have (on average 1.7678571428571428) internal successors, (297), 171 states have internal predecessors, (297), 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) [2021-11-13 02:33:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 297 transitions. [2021-11-13 02:33:26,477 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 297 transitions. Word has length 19 [2021-11-13 02:33:26,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:26,477 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 297 transitions. [2021-11-13 02:33:26,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-11-13 02:33:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 297 transitions. [2021-11-13 02:33:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:33:26,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:26,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:33:26,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:26,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:26,692 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:33:26,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:26,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1720623543, now seen corresponding path program 4 times [2021-11-13 02:33:26,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:26,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228135848] [2021-11-13 02:33:26,692 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 02:33:26,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:26,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:26,693 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:26,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-13 02:33:26,776 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 02:33:26,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:33:26,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:33:26,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:26,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 270 [2021-11-13 02:33:26,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:33:26,931 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:33:26,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-13 02:33:27,000 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:33:27,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 76 [2021-11-13 02:33:27,123 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:33:27,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 106 treesize of output 120 [2021-11-13 02:33:27,454 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-13 02:33:27,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 144 treesize of output 164 [2021-11-13 02:33:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:33:27,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:02,266 WARN L227 SmtUtils]: Spent 8.01s on a formula simplification. DAG size of input: 54 DAG size of output: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:34:14,835 WARN L227 SmtUtils]: Spent 7.38s on a formula simplification. DAG size of input: 51 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:34:14,889 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:34:14,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:34:14,931 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:14,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228135848] [2021-11-13 02:34:14,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228135848] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:34:14,931 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:34:14,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:34:14,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216194581] [2021-11-13 02:34:14,932 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:14,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:34:14,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:14,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:34:14,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=94, Unknown=10, NotChecked=0, Total=156 [2021-11-13 02:34:14,933 INFO L87 Difference]: Start difference. First operand 172 states and 297 transitions. Second operand has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-11-13 02:34:15,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:15,224 INFO L93 Difference]: Finished difference Result 188 states and 325 transitions. [2021-11-13 02:34:15,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:34:15,224 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 19 [2021-11-13 02:34:15,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:15,226 INFO L225 Difference]: With dead ends: 188 [2021-11-13 02:34:15,226 INFO L226 Difference]: Without dead ends: 188 [2021-11-13 02:34:15,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 47.4s TimeCoverageRelationStatistics Valid=65, Invalid=107, Unknown=10, NotChecked=0, Total=182 [2021-11-13 02:34:15,227 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 161.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.88ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 298 IncrementalHoareTripleChecker+Unchecked, 186.94ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:15,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 9 Invalid, 398 Unknown, 0 Unchecked, 0.88ms Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 298 Unchecked, 186.94ms Time] [2021-11-13 02:34:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-13 02:34:15,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 167. [2021-11-13 02:34:15,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 163 states have (on average 1.7607361963190185) internal successors, (287), 166 states have internal predecessors, (287), 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) [2021-11-13 02:34:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 287 transitions. [2021-11-13 02:34:15,234 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 287 transitions. Word has length 19 [2021-11-13 02:34:15,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:15,234 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 287 transitions. [2021-11-13 02:34:15,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-11-13 02:34:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 287 transitions. [2021-11-13 02:34:15,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:34:15,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:15,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:34:15,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:15,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:15,452 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:34:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash -502802363, now seen corresponding path program 1 times [2021-11-13 02:34:15,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:15,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624531191] [2021-11-13 02:34:15,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:15,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:15,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:15,453 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:15,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 02:34:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:15,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:34:15,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:15,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2021-11-13 02:34:15,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:34:15,691 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:34:15,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 02:34:15,793 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:34:15,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 54 [2021-11-13 02:34:15,954 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:34:15,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 87 [2021-11-13 02:34:16,242 INFO L354 Elim1Store]: treesize reduction 184, result has 20.3 percent of original size [2021-11-13 02:34:16,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 110 treesize of output 130 [2021-11-13 02:34:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:34:16,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:18,506 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))) (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd c_~x~0.offset (_ bv1 32)))))))))) (_ bv0 1))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))) (bvneg (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) c_~x~0.offset))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset)))))) (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))))) is different from false [2021-11-13 02:34:20,541 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse0 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset)))))) (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse1 (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse1 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd c_~x~0.offset (_ bv1 32))))))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (let ((.cse3 (bvadd (_ bv3 32) c_~x~0.offset))) (select (select (let ((.cse2 (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) .cse3 |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse2 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) .cse3))))) (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse4 (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse4 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) c_~x~0.offset))))) (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))))))) is different from false [2021-11-13 02:34:22,588 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (let ((.cse1 (bvadd (_ bv2 32) c_~x~0.offset))) (select (select (let ((.cse0 (store |c_#race| c_~x~0.base (store (store (select |c_#race| c_~x~0.base) .cse1 |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse0 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) .cse1)))))) (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse2 (store |c_#race| c_~x~0.base (store (store (select |c_#race| c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse2 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) c_~x~0.offset))))) (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse3 (store |c_#race| c_~x~0.base (store (store (select |c_#race| c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse3 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd c_~x~0.offset (_ bv1 32))))))))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (let ((.cse5 (bvadd (_ bv3 32) c_~x~0.offset))) (select (select (let ((.cse4 (store |c_#race| c_~x~0.base (store (store (select |c_#race| c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) .cse5 |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse4 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) .cse5)))))) (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))))))) is different from false [2021-11-13 02:34:30,684 WARN L227 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 77 DAG size of output: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:34:30,716 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:34:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:34:30,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:30,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624531191] [2021-11-13 02:34:30,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624531191] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:34:30,755 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:34:30,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:34:30,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972515462] [2021-11-13 02:34:30,756 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:30,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:34:30,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:30,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:34:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=60, Unknown=3, NotChecked=54, Total=156 [2021-11-13 02:34:30,757 INFO L87 Difference]: Start difference. First operand 167 states and 287 transitions. Second operand has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-11-13 02:34:43,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:43,035 INFO L93 Difference]: Finished difference Result 190 states and 329 transitions. [2021-11-13 02:34:43,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:34:43,036 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 20 [2021-11-13 02:34:43,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:43,037 INFO L225 Difference]: With dead ends: 190 [2021-11-13 02:34:43,037 INFO L226 Difference]: Without dead ends: 190 [2021-11-13 02:34:43,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 26.5s TimeCoverageRelationStatistics Valid=71, Invalid=92, Unknown=5, NotChecked=72, Total=240 [2021-11-13 02:34:43,038 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.75ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 214 IncrementalHoareTripleChecker+Unchecked, 157.60ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:43,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 308 Unknown, 0 Unchecked, 0.75ms Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 214 Unchecked, 157.60ms Time] [2021-11-13 02:34:43,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-13 02:34:43,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 170. [2021-11-13 02:34:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 166 states have (on average 1.7650602409638554) internal successors, (293), 169 states have internal predecessors, (293), 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) [2021-11-13 02:34:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 293 transitions. [2021-11-13 02:34:43,044 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 293 transitions. Word has length 20 [2021-11-13 02:34:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:43,044 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 293 transitions. [2021-11-13 02:34:43,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-11-13 02:34:43,044 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 293 transitions. [2021-11-13 02:34:43,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:34:43,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:43,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:34:43,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:43,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:43,245 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:34:43,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:43,246 INFO L85 PathProgramCache]: Analyzing trace with hash -502898153, now seen corresponding path program 2 times [2021-11-13 02:34:43,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:43,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500121954] [2021-11-13 02:34:43,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:34:43,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:43,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:43,247 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:43,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-13 02:34:43,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:34:43,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:34:43,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:34:43,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:43,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 80 [2021-11-13 02:34:43,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:34:43,522 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:34:43,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-13 02:34:43,620 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:34:43,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 58 [2021-11-13 02:34:43,821 INFO L354 Elim1Store]: treesize reduction 119, result has 22.7 percent of original size [2021-11-13 02:34:43,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 106 [2021-11-13 02:34:44,161 INFO L354 Elim1Store]: treesize reduction 172, result has 21.5 percent of original size [2021-11-13 02:34:44,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 129 treesize of output 149 [2021-11-13 02:34:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:34:44,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:46,553 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd c_~x~0.offset (_ bv1 32))))))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (store (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv2 32) c_~x~0.offset)))))) (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (select (store (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) c_~x~0.offset)) (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) is different from false [2021-11-13 02:34:56,724 WARN L227 SmtUtils]: Spent 8.06s on a formula simplification. DAG size of input: 59 DAG size of output: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:35:04,840 WARN L227 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:35:04,955 INFO L354 Elim1Store]: treesize reduction 202, result has 17.6 percent of original size [2021-11-13 02:35:04,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 79 treesize of output 76 [2021-11-13 02:35:04,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2021-11-13 02:35:04,979 INFO L354 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-11-13 02:35:04,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 1 [2021-11-13 02:35:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:35:05,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:35:05,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500121954] [2021-11-13 02:35:05,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500121954] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:35:05,026 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:35:05,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:35:05,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45355219] [2021-11-13 02:35:05,026 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:35:05,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:35:05,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:35:05,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:35:05,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=94, Unknown=1, NotChecked=20, Total=156 [2021-11-13 02:35:05,028 INFO L87 Difference]: Start difference. First operand 170 states and 293 transitions. Second operand has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-11-13 02:35:13,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:35:13,321 INFO L93 Difference]: Finished difference Result 204 states and 354 transitions. [2021-11-13 02:35:13,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:35:13,322 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 20 [2021-11-13 02:35:13,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:35:13,323 INFO L225 Difference]: With dead ends: 204 [2021-11-13 02:35:13,323 INFO L226 Difference]: Without dead ends: 204 [2021-11-13 02:35:13,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=62, Invalid=121, Unknown=3, NotChecked=24, Total=210 [2021-11-13 02:35:13,324 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 195.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 225.59ms IncrementalHoareTripleChecker+Time [2021-11-13 02:35:13,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 12 Invalid, 207 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 106 Unchecked, 225.59ms Time] [2021-11-13 02:35:13,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-13 02:35:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 173. [2021-11-13 02:35:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 169 states have (on average 1.7692307692307692) internal successors, (299), 172 states have internal predecessors, (299), 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) [2021-11-13 02:35:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 299 transitions. [2021-11-13 02:35:13,330 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 299 transitions. Word has length 20 [2021-11-13 02:35:13,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:35:13,331 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 299 transitions. [2021-11-13 02:35:13,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-11-13 02:35:13,331 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 299 transitions. [2021-11-13 02:35:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:35:13,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:35:13,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:35:13,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-11-13 02:35:13,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:35:13,568 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:35:13,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:35:13,568 INFO L85 PathProgramCache]: Analyzing trace with hash -505838813, now seen corresponding path program 3 times [2021-11-13 02:35:13,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:35:13,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921065932] [2021-11-13 02:35:13,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 02:35:13,569 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:35:13,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:35:13,570 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:35:13,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-13 02:35:13,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-13 02:35:13,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:35:13,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:35:13,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:35:13,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 57 [2021-11-13 02:35:13,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:35:13,771 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:35:13,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 02:35:13,846 INFO L354 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2021-11-13 02:35:13,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 60 [2021-11-13 02:35:13,976 INFO L354 Elim1Store]: treesize reduction 111, result has 24.0 percent of original size [2021-11-13 02:35:13,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 85 [2021-11-13 02:35:14,201 INFO L354 Elim1Store]: treesize reduction 172, result has 21.5 percent of original size [2021-11-13 02:35:14,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 98 treesize of output 118 [2021-11-13 02:35:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:35:14,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:35:16,504 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) c_~x~0.offset))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (store (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd c_~x~0.offset (_ bv1 32)))))))))))))) is different from false [2021-11-13 02:35:28,610 WARN L227 SmtUtils]: Spent 10.07s on a formula simplification. DAG size of input: 41 DAG size of output: 27 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 02:35:28,611 INFO L354 Elim1Store]: treesize reduction 81, result has 34.7 percent of original size [2021-11-13 02:35:28,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 75 [2021-11-13 02:35:28,621 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:35:28,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 69 [2021-11-13 02:35:28,634 INFO L354 Elim1Store]: treesize reduction 49, result has 2.0 percent of original size [2021-11-13 02:35:28,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 1 [2021-11-13 02:35:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:35:28,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:35:28,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921065932] [2021-11-13 02:35:28,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921065932] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:35:28,673 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:35:28,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:35:28,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869631040] [2021-11-13 02:35:28,674 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:35:28,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:35:28,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:35:28,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:35:28,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=94, Unknown=1, NotChecked=20, Total=156 [2021-11-13 02:35:28,675 INFO L87 Difference]: Start difference. First operand 173 states and 299 transitions. Second operand has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-11-13 02:35:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:35:37,065 INFO L93 Difference]: Finished difference Result 190 states and 329 transitions. [2021-11-13 02:35:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 02:35:37,066 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 20 [2021-11-13 02:35:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:35:37,067 INFO L225 Difference]: With dead ends: 190 [2021-11-13 02:35:37,067 INFO L226 Difference]: Without dead ends: 190 [2021-11-13 02:35:37,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=58, Invalid=125, Unknown=3, NotChecked=24, Total=210 [2021-11-13 02:35:37,068 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 269.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.40ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 244 IncrementalHoareTripleChecker+Unchecked, 310.11ms IncrementalHoareTripleChecker+Time [2021-11-13 02:35:37,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 17 Invalid, 395 Unknown, 0 Unchecked, 1.40ms Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 244 Unchecked, 310.11ms Time] [2021-11-13 02:35:37,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-13 02:35:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 173. [2021-11-13 02:35:37,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 169 states have (on average 1.7692307692307692) internal successors, (299), 172 states have internal predecessors, (299), 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) [2021-11-13 02:35:37,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 299 transitions. [2021-11-13 02:35:37,080 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 299 transitions. Word has length 20 [2021-11-13 02:35:37,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:35:37,082 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 299 transitions. [2021-11-13 02:35:37,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-11-13 02:35:37,083 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 299 transitions. [2021-11-13 02:35:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:35:37,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:35:37,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:35:37,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-13 02:35:37,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:35:37,298 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:35:37,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:35:37,299 INFO L85 PathProgramCache]: Analyzing trace with hash 158781327, now seen corresponding path program 4 times [2021-11-13 02:35:37,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:35:37,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635499754] [2021-11-13 02:35:37,299 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 02:35:37,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:35:37,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:35:37,300 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:35:37,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-13 02:35:37,405 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 02:35:37,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:35:37,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:35:37,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:35:37,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 285 [2021-11-13 02:35:37,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:35:37,536 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:35:37,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-13 02:35:37,641 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:35:37,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 64 [2021-11-13 02:35:37,843 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:35:37,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 102 [2021-11-13 02:35:38,044 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-13 02:35:38,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 139 treesize of output 147 [2021-11-13 02:35:38,392 INFO L354 Elim1Store]: treesize reduction 255, result has 18.3 percent of original size [2021-11-13 02:35:38,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 156 treesize of output 182 [2021-11-13 02:35:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:35:38,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:35:40,897 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))) (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) c_~x~0.offset)))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset)))) (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd c_~x~0.offset (_ bv1 32))))))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset)))))))) (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))))))) is different from false [2021-11-13 02:36:25,809 WARN L227 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 52 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:36:25,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:36:25,964 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:36:25,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635499754] [2021-11-13 02:36:25,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635499754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:36:25,965 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:36:25,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:36:25,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825586908] [2021-11-13 02:36:25,965 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:36:25,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:36:25,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:36:25,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:36:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=109, Unknown=15, NotChecked=24, Total=210 [2021-11-13 02:36:25,967 INFO L87 Difference]: Start difference. First operand 173 states and 299 transitions. Second operand has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:36:34,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:36:34,754 INFO L93 Difference]: Finished difference Result 198 states and 345 transitions. [2021-11-13 02:36:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:36:34,754 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 20 [2021-11-13 02:36:34,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:36:34,756 INFO L225 Difference]: With dead ends: 198 [2021-11-13 02:36:34,756 INFO L226 Difference]: Without dead ends: 198 [2021-11-13 02:36:34,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 55.7s TimeCoverageRelationStatistics Valid=90, Invalid=137, Unknown=17, NotChecked=28, Total=272 [2021-11-13 02:36:34,757 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 338.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.39ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 206 IncrementalHoareTripleChecker+Unchecked, 387.53ms IncrementalHoareTripleChecker+Time [2021-11-13 02:36:34,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 353 Unknown, 0 Unchecked, 1.39ms Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 206 Unchecked, 387.53ms Time] [2021-11-13 02:36:34,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-13 02:36:34,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 176. [2021-11-13 02:36:34,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 172 states have (on average 1.7732558139534884) internal successors, (305), 175 states have internal predecessors, (305), 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) [2021-11-13 02:36:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 305 transitions. [2021-11-13 02:36:34,764 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 305 transitions. Word has length 20 [2021-11-13 02:36:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:36:34,765 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 305 transitions. [2021-11-13 02:36:34,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:36:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 305 transitions. [2021-11-13 02:36:34,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:36:34,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:36:34,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:36:34,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-11-13 02:36:34,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:36:34,995 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:36:34,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:36:34,996 INFO L85 PathProgramCache]: Analyzing trace with hash 158435367, now seen corresponding path program 5 times [2021-11-13 02:36:34,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:36:34,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471479646] [2021-11-13 02:36:34,996 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 02:36:34,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:36:34,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:36:34,997 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:36:34,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-13 02:36:35,083 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:36:35,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:36:35,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:36:35,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:36:35,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 482 treesize of output 466 [2021-11-13 02:36:35,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:36:35,274 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:36:35,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-13 02:36:35,359 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:36:35,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 58 [2021-11-13 02:36:35,455 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-13 02:36:35,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 76 [2021-11-13 02:36:35,603 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:36:35,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 102 [2021-11-13 02:36:35,918 INFO L354 Elim1Store]: treesize reduction 255, result has 18.3 percent of original size [2021-11-13 02:36:35,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 122 treesize of output 148 [2021-11-13 02:36:36,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:36:36,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:36:58,965 WARN L227 SmtUtils]: Spent 17.57s on a formula simplification. DAG size of input: 74 DAG size of output: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:37:14,142 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#race| c_~x~0.base (store (store (select |c_#race| c_~x~0.base) (bvadd c_~x~0.offset (_ bv1 32)) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse2 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)))))) (store .cse1 c_~x~0.base (store (select .cse1 c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse0 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) c_~x~0.offset))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (let ((.cse6 (bvadd c_~x~0.offset (_ bv1 32)))) (select (select (let ((.cse3 (let ((.cse4 (let ((.cse5 (store |c_#race| c_~x~0.base (store (store (select |c_#race| c_~x~0.base) .cse6 |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse5 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)))))) (store .cse4 c_~x~0.base (store (select .cse4 c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse3 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) .cse6))))))))))))))))))) is different from false [2021-11-13 02:37:14,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:37:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:37:14,449 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:37:14,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471479646] [2021-11-13 02:37:14,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471479646] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:37:14,449 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:37:14,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:37:14,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124117740] [2021-11-13 02:37:14,450 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:37:14,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:37:14,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:37:14,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:37:14,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=120, Unknown=8, NotChecked=24, Total=210 [2021-11-13 02:37:14,451 INFO L87 Difference]: Start difference. First operand 176 states and 305 transitions. Second operand has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:37:21,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:37:21,616 INFO L93 Difference]: Finished difference Result 202 states and 353 transitions. [2021-11-13 02:37:21,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 02:37:21,617 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 20 [2021-11-13 02:37:21,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:37:21,620 INFO L225 Difference]: With dead ends: 202 [2021-11-13 02:37:21,620 INFO L226 Difference]: Without dead ends: 202 [2021-11-13 02:37:21,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 44.6s TimeCoverageRelationStatistics Valid=77, Invalid=158, Unknown=9, NotChecked=28, Total=272 [2021-11-13 02:37:21,622 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 599.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.64ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 163 IncrementalHoareTripleChecker+Unchecked, 669.59ms IncrementalHoareTripleChecker+Time [2021-11-13 02:37:21,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 10 Invalid, 352 Unknown, 0 Unchecked, 1.64ms Time], IncrementalHoareTripleChecker [9 Valid, 180 Invalid, 0 Unknown, 163 Unchecked, 669.59ms Time] [2021-11-13 02:37:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-13 02:37:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 176. [2021-11-13 02:37:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 172 states have (on average 1.7732558139534884) internal successors, (305), 175 states have internal predecessors, (305), 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) [2021-11-13 02:37:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 305 transitions. [2021-11-13 02:37:21,630 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 305 transitions. Word has length 20 [2021-11-13 02:37:21,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:37:21,630 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 305 transitions. [2021-11-13 02:37:21,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:37:21,631 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 305 transitions. [2021-11-13 02:37:21,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:37:21,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:21,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:21,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-13 02:37:21,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:37:21,849 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:37:21,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:21,849 INFO L85 PathProgramCache]: Analyzing trace with hash 158339577, now seen corresponding path program 6 times [2021-11-13 02:37:21,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:37:21,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218024606] [2021-11-13 02:37:21,850 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-13 02:37:21,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:37:21,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:37:21,851 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:37:21,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-13 02:37:21,951 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-13 02:37:21,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:37:21,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:37:21,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:37:21,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 286 [2021-11-13 02:37:22,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:37:22,089 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:37:22,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 02:37:22,194 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:37:22,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 58 [2021-11-13 02:37:22,300 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-13 02:37:22,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 81 [2021-11-13 02:37:22,520 INFO L354 Elim1Store]: treesize reduction 176, result has 20.4 percent of original size [2021-11-13 02:37:22,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 95 treesize of output 115 [2021-11-13 02:37:22,849 INFO L354 Elim1Store]: treesize reduction 247, result has 18.8 percent of original size [2021-11-13 02:37:22,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 147 treesize of output 173 [2021-11-13 02:37:23,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:37:23,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:37:25,376 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))) (bvneg (bvneg (bvneg (bvneg (select (store (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) c_~x~0.offset)))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd c_~x~0.offset (_ bv1 32))))))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))) (bvneg (bvneg (bvneg (bvneg (select (store (select (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv2 32) c_~x~0.offset)))))))))) is different from false [2021-11-13 02:38:03,452 WARN L227 SmtUtils]: Spent 22.30s on a formula simplification. DAG size of input: 78 DAG size of output: 45 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 02:38:03,452 INFO L354 Elim1Store]: treesize reduction 329, result has 22.4 percent of original size [2021-11-13 02:38:03,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 124 [2021-11-13 02:38:03,470 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:38:03,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 114 [2021-11-13 02:38:03,484 INFO L354 Elim1Store]: treesize reduction 104, result has 1.0 percent of original size [2021-11-13 02:38:03,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 138 treesize of output 116 [2021-11-13 02:38:03,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:03,601 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:03,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218024606] [2021-11-13 02:38:03,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218024606] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:03,601 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:03,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:38:03,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811189054] [2021-11-13 02:38:03,601 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:03,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:38:03,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:03,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:38:03,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=126, Unknown=6, NotChecked=24, Total=210 [2021-11-13 02:38:03,603 INFO L87 Difference]: Start difference. First operand 176 states and 305 transitions. Second operand has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:38:08,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:08,237 INFO L93 Difference]: Finished difference Result 205 states and 353 transitions. [2021-11-13 02:38:08,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 02:38:08,238 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 20 [2021-11-13 02:38:08,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:08,239 INFO L225 Difference]: With dead ends: 205 [2021-11-13 02:38:08,239 INFO L226 Difference]: Without dead ends: 202 [2021-11-13 02:38:08,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=83, Invalid=185, Unknown=8, NotChecked=30, Total=306 [2021-11-13 02:38:08,240 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 308.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.30ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 322 IncrementalHoareTripleChecker+Unchecked, 354.05ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:08,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 12 Invalid, 469 Unknown, 0 Unchecked, 1.30ms Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 0 Unknown, 322 Unchecked, 354.05ms Time] [2021-11-13 02:38:08,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-13 02:38:08,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 179. [2021-11-13 02:38:08,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 175 states have (on average 1.7771428571428571) internal successors, (311), 178 states have internal predecessors, (311), 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) [2021-11-13 02:38:08,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 311 transitions. [2021-11-13 02:38:08,247 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 311 transitions. Word has length 20 [2021-11-13 02:38:08,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:08,248 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 311 transitions. [2021-11-13 02:38:08,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:38:08,248 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 311 transitions. [2021-11-13 02:38:08,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:38:08,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:08,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:08,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:08,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:08,456 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:38:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:08,456 INFO L85 PathProgramCache]: Analyzing trace with hash 148604337, now seen corresponding path program 7 times [2021-11-13 02:38:08,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:08,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222369763] [2021-11-13 02:38:08,457 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-13 02:38:08,457 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:08,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:08,458 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:08,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-13 02:38:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:08,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:38:08,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:08,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2021-11-13 02:38:08,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:38:08,678 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:38:08,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-13 02:38:08,731 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-13 02:38:08,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 52 [2021-11-13 02:38:08,825 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:38:08,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 73 [2021-11-13 02:38:09,024 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:38:09,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 110 [2021-11-13 02:38:09,314 INFO L354 Elim1Store]: treesize reduction 255, result has 18.3 percent of original size [2021-11-13 02:38:09,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 134 treesize of output 160 [2021-11-13 02:38:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:09,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:12,225 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))) (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))))) (store .cse1 c_~x~0.base (store (store (select .cse1 c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse0 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) c_~x~0.offset))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))) (bvneg (bvneg (bvneg (bvneg (let ((.cse4 (bvadd (_ bv3 32) c_~x~0.offset))) (select (select (let ((.cse2 (let ((.cse3 (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))))) (store .cse3 c_~x~0.base (store (store (select .cse3 c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) .cse4 |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse2 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) .cse4))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse5 (let ((.cse6 (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))))) (store .cse6 c_~x~0.base (store (store (select .cse6 c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse5 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd c_~x~0.offset (_ bv1 32)))))))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (let ((.cse9 (bvadd (_ bv2 32) c_~x~0.offset))) (select (select (let ((.cse7 (let ((.cse8 (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))))) (store .cse8 c_~x~0.base (store (store (select .cse8 c_~x~0.base) .cse9 |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse7 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) .cse9))))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))))) is different from false [2021-11-13 02:38:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:25,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:25,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222369763] [2021-11-13 02:38:25,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222369763] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:25,527 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:25,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:38:25,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705140323] [2021-11-13 02:38:25,528 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:25,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:38:25,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:38:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=124, Unknown=3, NotChecked=24, Total=210 [2021-11-13 02:38:25,528 INFO L87 Difference]: Start difference. First operand 179 states and 311 transitions. Second operand has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:38:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:35,574 INFO L93 Difference]: Finished difference Result 222 states and 384 transitions. [2021-11-13 02:38:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 02:38:35,576 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 20 [2021-11-13 02:38:35,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:35,578 INFO L225 Difference]: With dead ends: 222 [2021-11-13 02:38:35,578 INFO L226 Difference]: Without dead ends: 221 [2021-11-13 02:38:35,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=4, NotChecked=32, Total=342 [2021-11-13 02:38:35,579 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 18 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1116.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.08ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 173 IncrementalHoareTripleChecker+Unchecked, 1229.50ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:35,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 9 Invalid, 440 Unknown, 0 Unchecked, 3.08ms Time], IncrementalHoareTripleChecker [13 Valid, 254 Invalid, 0 Unknown, 173 Unchecked, 1229.50ms Time] [2021-11-13 02:38:35,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-13 02:38:35,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 186. [2021-11-13 02:38:35,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 182 states have (on average 1.7857142857142858) internal successors, (325), 185 states have internal predecessors, (325), 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) [2021-11-13 02:38:35,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 325 transitions. [2021-11-13 02:38:35,597 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 325 transitions. Word has length 20 [2021-11-13 02:38:35,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:35,597 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 325 transitions. [2021-11-13 02:38:35,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:38:35,598 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 325 transitions. [2021-11-13 02:38:35,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:38:35,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:35,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:35,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:35,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:35,815 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:38:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:35,815 INFO L85 PathProgramCache]: Analyzing trace with hash 148508547, now seen corresponding path program 8 times [2021-11-13 02:38:35,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:35,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199118409] [2021-11-13 02:38:35,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:38:35,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:35,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:35,817 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:35,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-13 02:38:35,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:38:35,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:38:35,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:38:35,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:35,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2021-11-13 02:38:35,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:38:36,015 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:38:36,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 02:38:36,076 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-13 02:38:36,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 58 [2021-11-13 02:38:36,172 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:38:36,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 82 [2021-11-13 02:38:36,373 INFO L354 Elim1Store]: treesize reduction 176, result has 20.4 percent of original size [2021-11-13 02:38:36,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 121 [2021-11-13 02:38:36,722 INFO L354 Elim1Store]: treesize reduction 247, result has 18.8 percent of original size [2021-11-13 02:38:36,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 136 treesize of output 162 [2021-11-13 02:38:37,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:37,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:39,822 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (let ((.cse2 (bvadd (_ bv2 32) c_~x~0.offset))) (select (store (select (let ((.cse0 (let ((.cse1 (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))))) (store .cse1 c_~x~0.base (store (select .cse1 c_~x~0.base) .cse2 |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse0 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) .cse2))))))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|))))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (select (let ((.cse3 (let ((.cse4 (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))))) (store .cse4 c_~x~0.base (store (select .cse4 c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse3 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd c_~x~0.offset (_ bv1 32)))))))))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (select (let ((.cse5 (let ((.cse6 (store |c_#race| |c_ULTIMATE.start_main_~z~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1))))) (store .cse6 c_~x~0.base (store (select .cse6 c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|))))) (store .cse5 |c_ULTIMATE.start_main_~z~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~z~0#1.base|) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) c_~x~0.offset)))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))))) is different from false [2021-11-13 02:39:12,613 WARN L227 SmtUtils]: Spent 22.29s on a formula simplification. DAG size of input: 80 DAG size of output: 45 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 02:39:12,614 INFO L354 Elim1Store]: treesize reduction 314, result has 23.2 percent of original size [2021-11-13 02:39:12,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 197 treesize of output 126 [2021-11-13 02:39:12,628 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:39:12,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2021-11-13 02:39:12,641 INFO L354 Elim1Store]: treesize reduction 104, result has 1.0 percent of original size [2021-11-13 02:39:12,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 120 [2021-11-13 02:39:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:12,836 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:12,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199118409] [2021-11-13 02:39:12,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199118409] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:12,836 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:39:12,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:39:12,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421506295] [2021-11-13 02:39:12,837 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:12,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:39:12,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:12,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:39:12,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=4, NotChecked=24, Total=210 [2021-11-13 02:39:12,838 INFO L87 Difference]: Start difference. First operand 186 states and 325 transitions. Second operand has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:39:19,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:19,334 INFO L93 Difference]: Finished difference Result 197 states and 347 transitions. [2021-11-13 02:39:19,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 02:39:19,335 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 20 [2021-11-13 02:39:19,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:19,336 INFO L225 Difference]: With dead ends: 197 [2021-11-13 02:39:19,336 INFO L226 Difference]: Without dead ends: 197 [2021-11-13 02:39:19,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=65, Invalid=172, Unknown=7, NotChecked=28, Total=272 [2021-11-13 02:39:19,337 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 277.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.77ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 151 IncrementalHoareTripleChecker+Unchecked, 316.11ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:19,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 11 Invalid, 259 Unknown, 0 Unchecked, 0.77ms Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 151 Unchecked, 316.11ms Time] [2021-11-13 02:39:19,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-13 02:39:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 191. [2021-11-13 02:39:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 187 states have (on average 1.7914438502673797) internal successors, (335), 190 states have internal predecessors, (335), 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) [2021-11-13 02:39:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 335 transitions. [2021-11-13 02:39:19,344 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 335 transitions. Word has length 20 [2021-11-13 02:39:19,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:19,345 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 335 transitions. [2021-11-13 02:39:19,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:39:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 335 transitions. [2021-11-13 02:39:19,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:39:19,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:19,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:19,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:19,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:19,564 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:39:19,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:19,565 INFO L85 PathProgramCache]: Analyzing trace with hash 145567887, now seen corresponding path program 9 times [2021-11-13 02:39:19,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:19,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415106656] [2021-11-13 02:39:19,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 02:39:19,565 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:19,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:19,566 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:19,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-13 02:39:19,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-13 02:39:19,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:39:19,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:19,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:19,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 127 [2021-11-13 02:39:19,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:39:19,785 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:39:19,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 02:39:19,859 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-13 02:39:19,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 58 [2021-11-13 02:39:19,976 INFO L354 Elim1Store]: treesize reduction 109, result has 23.2 percent of original size [2021-11-13 02:39:19,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 90 [2021-11-13 02:39:20,229 INFO L354 Elim1Store]: treesize reduction 172, result has 20.7 percent of original size [2021-11-13 02:39:20,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 136 [2021-11-13 02:39:20,553 INFO L354 Elim1Store]: treesize reduction 247, result has 18.8 percent of original size [2021-11-13 02:39:20,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 156 treesize of output 182 [2021-11-13 02:39:20,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:20,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:27,340 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (let ((.cse1 (bvadd c_~x~0.offset (_ bv1 32)))) (select (store (store (select (let ((.cse0 (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) .cse1 |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse0 |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select .cse0 |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) .cse1)))))))))))))) (forall ((|ULTIMATE.start_main_~z~0#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg |c_t_funThread1of1ForFork0_#t~nondet31|)))))))) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (store (select (let ((.cse2 (store |c_#race| c_~x~0.base (store (select |c_#race| c_~x~0.base) (bvadd c_~x~0.offset (_ bv1 32)) |c_t_funThread1of1ForFork0_#t~nondet31|)))) (store .cse2 |c_ULTIMATE.start_main_~z~0#1.base| (store (store (select .cse2 |c_ULTIMATE.start_main_~z~0#1.base|) |ULTIMATE.start_main_~z~0#1.offset| (_ bv0 1)) (bvadd |ULTIMATE.start_main_~z~0#1.offset| (_ bv1 32)) (_ bv0 1)))) c_~x~0.base) (bvadd (_ bv2 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) (bvadd (_ bv3 32) c_~x~0.offset) |c_t_funThread1of1ForFork0_#t~nondet31|) c_~x~0.offset)))))))))))) is different from false [2021-11-13 02:39:31,545 INFO L354 Elim1Store]: treesize reduction 168, result has 30.0 percent of original size [2021-11-13 02:39:31,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 81 treesize of output 114 [2021-11-13 02:39:31,558 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:39:31,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 108 [2021-11-13 02:39:31,569 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-13 02:39:31,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 209 [2021-11-13 02:39:31,694 INFO L354 Elim1Store]: treesize reduction 78, result has 1.3 percent of original size [2021-11-13 02:39:31,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 77 treesize of output 1 [2021-11-13 02:39:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:31,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:31,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415106656] [2021-11-13 02:39:31,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415106656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:31,735 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:39:31,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:39:31,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553567236] [2021-11-13 02:39:31,736 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:31,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:39:31,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:31,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:39:31,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=131, Unknown=2, NotChecked=24, Total=210 [2021-11-13 02:39:31,737 INFO L87 Difference]: Start difference. First operand 191 states and 335 transitions. Second operand has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:39:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:31,834 INFO L93 Difference]: Finished difference Result 198 states and 349 transitions. [2021-11-13 02:39:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 02:39:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 20 [2021-11-13 02:39:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:31,835 INFO L225 Difference]: With dead ends: 198 [2021-11-13 02:39:31,836 INFO L226 Difference]: Without dead ends: 198 [2021-11-13 02:39:31,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=53, Invalid=131, Unknown=2, NotChecked=24, Total=210 [2021-11-13 02:39:31,837 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 130 IncrementalHoareTripleChecker+Unchecked, 76.19ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:31,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 159 Unknown, 0 Unchecked, 0.32ms Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 130 Unchecked, 76.19ms Time] [2021-11-13 02:39:31,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-13 02:39:31,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 191. [2021-11-13 02:39:31,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 187 states have (on average 1.7914438502673797) internal successors, (335), 190 states have internal predecessors, (335), 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) [2021-11-13 02:39:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 335 transitions. [2021-11-13 02:39:31,843 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 335 transitions. Word has length 20 [2021-11-13 02:39:31,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:31,843 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 335 transitions. [2021-11-13 02:39:31,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:39:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 335 transitions. [2021-11-13 02:39:31,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:39:31,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:31,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:31,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-11-13 02:39:32,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:32,060 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:39:32,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:32,060 INFO L85 PathProgramCache]: Analyzing trace with hash -128547753, now seen corresponding path program 10 times [2021-11-13 02:39:32,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:32,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22383394] [2021-11-13 02:39:32,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 02:39:32,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:32,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:32,062 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:32,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-13 02:39:32,145 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 02:39:32,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:39:32,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:32,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:32,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 192 [2021-11-13 02:39:32,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:39:32,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-13 02:39:32,299 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:39:32,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2021-11-13 02:39:32,412 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:39:32,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 73 [2021-11-13 02:39:32,606 INFO L354 Elim1Store]: treesize reduction 176, result has 20.4 percent of original size [2021-11-13 02:39:32,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 114 [2021-11-13 02:39:32,917 INFO L354 Elim1Store]: treesize reduction 247, result has 18.8 percent of original size [2021-11-13 02:39:32,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 122 treesize of output 148 [2021-11-13 02:39:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:33,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:01,226 WARN L227 SmtUtils]: Spent 22.30s on a formula simplification. DAG size of input: 80 DAG size of output: 45 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 02:40:01,227 INFO L354 Elim1Store]: treesize reduction 306, result has 23.5 percent of original size [2021-11-13 02:40:01,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 163 treesize of output 121 [2021-11-13 02:40:01,239 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:40:01,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 111 [2021-11-13 02:40:01,252 INFO L354 Elim1Store]: treesize reduction 104, result has 1.0 percent of original size [2021-11-13 02:40:01,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 133 treesize of output 111 [2021-11-13 02:40:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:40:01,368 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:01,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22383394] [2021-11-13 02:40:01,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22383394] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:01,369 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:01,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:40:01,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724318] [2021-11-13 02:40:01,369 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:01,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:40:01,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:01,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:40:01,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-13 02:40:01,370 INFO L87 Difference]: Start difference. First operand 191 states and 335 transitions. Second operand has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:40:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:33,083 INFO L93 Difference]: Finished difference Result 242 states and 421 transitions. [2021-11-13 02:40:33,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 02:40:33,084 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 20 [2021-11-13 02:40:33,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:33,086 INFO L225 Difference]: With dead ends: 242 [2021-11-13 02:40:33,086 INFO L226 Difference]: Without dead ends: 237 [2021-11-13 02:40:33,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 36.8s TimeCoverageRelationStatistics Valid=175, Invalid=322, Unknown=9, NotChecked=0, Total=506 [2021-11-13 02:40:33,087 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 32 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 681.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.69ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 177 IncrementalHoareTripleChecker+Unchecked, 782.01ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:33,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 4 Invalid, 500 Unknown, 0 Unchecked, 1.69ms Time], IncrementalHoareTripleChecker [32 Valid, 291 Invalid, 0 Unknown, 177 Unchecked, 782.01ms Time] [2021-11-13 02:40:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-13 02:40:33,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 173. [2021-11-13 02:40:33,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 169 states have (on average 1.7692307692307692) internal successors, (299), 172 states have internal predecessors, (299), 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) [2021-11-13 02:40:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 299 transitions. [2021-11-13 02:40:33,093 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 299 transitions. Word has length 20 [2021-11-13 02:40:33,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:33,094 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 299 transitions. [2021-11-13 02:40:33,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2021-11-13 02:40:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 299 transitions. [2021-11-13 02:40:33,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 02:40:33,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:33,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:40:33,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-11-13 02:40:33,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:33,328 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:40:33,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:33,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1299403118, now seen corresponding path program 1 times [2021-11-13 02:40:33,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:33,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139781142] [2021-11-13 02:40:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:33,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:33,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:33,331 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:33,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-13 02:40:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:33,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:40:33,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:33,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2021-11-13 02:40:33,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:40:33,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-11-13 02:40:33,630 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:40:33,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2021-11-13 02:40:33,732 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-13 02:40:33,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 73 [2021-11-13 02:40:33,920 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-13 02:40:33,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 105 [2021-11-13 02:40:34,214 INFO L354 Elim1Store]: treesize reduction 269, result has 18.0 percent of original size [2021-11-13 02:40:34,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 128 treesize of output 154 [2021-11-13 02:40:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:40:34,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:50,359 WARN L227 SmtUtils]: Spent 13.87s on a formula simplification. DAG size of input: 77 DAG size of output: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:40:51,025 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:40:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:40:51,083 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:51,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139781142] [2021-11-13 02:40:51,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139781142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:51,083 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:51,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:40:51,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529139527] [2021-11-13 02:40:51,084 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:51,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:40:51,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:51,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:40:51,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-13 02:40:51,085 INFO L87 Difference]: Start difference. First operand 173 states and 299 transitions. Second operand has 15 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2021-11-13 02:41:05,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:05,170 INFO L93 Difference]: Finished difference Result 215 states and 369 transitions. [2021-11-13 02:41:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 02:41:05,172 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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 21 [2021-11-13 02:41:05,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:05,174 INFO L225 Difference]: With dead ends: 215 [2021-11-13 02:41:05,174 INFO L226 Difference]: Without dead ends: 209 [2021-11-13 02:41:05,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=171, Invalid=288, Unknown=3, NotChecked=0, Total=462 [2021-11-13 02:41:05,175 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 30 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 997.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.78ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 1131.07ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:05,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 4 Invalid, 406 Unknown, 0 Unchecked, 1.78ms Time], IncrementalHoareTripleChecker [30 Valid, 286 Invalid, 0 Unknown, 90 Unchecked, 1131.07ms Time] [2021-11-13 02:41:05,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-13 02:41:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 151. [2021-11-13 02:41:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 148 states have (on average 1.7567567567567568) internal successors, (260), 150 states have internal predecessors, (260), 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) [2021-11-13 02:41:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 260 transitions. [2021-11-13 02:41:05,181 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 260 transitions. Word has length 21 [2021-11-13 02:41:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:05,181 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 260 transitions. [2021-11-13 02:41:05,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2021-11-13 02:41:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 260 transitions. [2021-11-13 02:41:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 02:41:05,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:05,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:05,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:05,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:05,402 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-11-13 02:41:05,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:05,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1864784877, now seen corresponding path program 1 times [2021-11-13 02:41:05,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:05,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602995497] [2021-11-13 02:41:05,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:05,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:05,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:05,403 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:05,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-13 02:41:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 02:41:05,496 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 02:41:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 02:41:05,601 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-13 02:41:05,602 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 02:41:05,603 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2021-11-13 02:41:05,605 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2021-11-13 02:41:05,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2021-11-13 02:41:05,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2021-11-13 02:41:05,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2021-11-13 02:41:05,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2021-11-13 02:41:05,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (8 of 15 remaining) [2021-11-13 02:41:05,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2021-11-13 02:41:05,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2021-11-13 02:41:05,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2021-11-13 02:41:05,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2021-11-13 02:41:05,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2021-11-13 02:41:05,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2021-11-13 02:41:05,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2021-11-13 02:41:05,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2021-11-13 02:41:05,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:05,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:05,838 INFO L732 BasicCegarLoop]: Path program histogram: [10, 8, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:05,843 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 02:41:05,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:41:05,876 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.DataRaceFoundResult.getLongDescription(DataRaceFoundResult.java:136) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 02:41:05,879 INFO L158 Benchmark]: Toolchain (without parser) took 739215.16ms. Allocated memory was 56.6MB in the beginning and 130.0MB in the end (delta: 73.4MB). Free memory was 32.5MB in the beginning and 33.7MB in the end (delta: -1.2MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2021-11-13 02:41:05,879 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:41:05,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 886.92ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 32.3MB in the beginning and 45.6MB in the end (delta: -13.3MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2021-11-13 02:41:05,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.68ms. Allocated memory is still 75.5MB. Free memory was 45.6MB in the beginning and 42.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 02:41:05,880 INFO L158 Benchmark]: Boogie Preprocessor took 56.66ms. Allocated memory is still 75.5MB. Free memory was 42.8MB in the beginning and 40.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:41:05,880 INFO L158 Benchmark]: RCFGBuilder took 606.72ms. Allocated memory is still 75.5MB. Free memory was 40.7MB in the beginning and 48.7MB in the end (delta: -8.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-13 02:41:05,881 INFO L158 Benchmark]: TraceAbstraction took 737601.25ms. Allocated memory was 75.5MB in the beginning and 130.0MB in the end (delta: 54.5MB). Free memory was 48.0MB in the beginning and 33.7MB in the end (delta: 14.3MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2021-11-13 02:41:05,882 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 56.6MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 886.92ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 32.3MB in the beginning and 45.6MB in the end (delta: -13.3MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.68ms. Allocated memory is still 75.5MB. Free memory was 45.6MB in the beginning and 42.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.66ms. Allocated memory is still 75.5MB. Free memory was 42.8MB in the beginning and 40.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.72ms. Allocated memory is still 75.5MB. Free memory was 40.7MB in the beginning and 48.7MB in the end (delta: -8.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * TraceAbstraction took 737601.25ms. Allocated memory was 75.5MB in the beginning and 130.0MB in the end (delta: 54.5MB). Free memory was 48.0MB in the beginning and 33.7MB in the end (delta: 14.3MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.2s, 120 PlacesBefore, 45 PlacesAfterwards, 116 TransitionsBefore, 41 TransitionsAfterwards, 1920 CoEnabledTransitionPairs, 8 FixpointIterations, 58 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 97 TotalNumberOfCompositions, 11283 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2747, positive: 2221, positive conditional: 0, positive unconditional: 2221, negative: 526, negative conditional: 0, negative unconditional: 526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1310, positive: 1212, positive conditional: 0, positive unconditional: 1212, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1310, positive: 1110, positive conditional: 0, positive unconditional: 1110, negative: 200, negative conditional: 0, negative unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 200, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 770, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 613, negative conditional: 0, negative unconditional: 613, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2747, positive: 1009, positive conditional: 0, positive unconditional: 1009, negative: 428, negative conditional: 0, negative unconditional: 428, unknown: 1310, unknown conditional: 0, unknown unconditional: 1310] , Statistics on independence cache: Total cache size (in pairs): 201, Positive cache size: 133, Positive conditional cache size: 0, Positive unconditional cache size: 133, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68 - 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 02:41:06,090 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-13 02:41:06,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f7e52fb-6efc-4b31-a440-154f76bd6ef8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null