./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh --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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:01:42,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:01:42,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:01:42,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:01:42,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:01:42,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:01:42,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:01:42,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:01:42,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:01:42,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:01:42,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:01:42,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:01:42,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:01:42,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:01:42,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:01:42,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:01:42,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:01:42,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:01:42,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:01:42,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:01:42,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:01:42,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:01:42,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:01:42,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:01:42,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:01:42,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:01:42,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:01:42,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:01:42,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:01:42,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:01:42,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:01:42,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:01:42,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:01:42,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:01:42,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:01:42,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:01:42,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:01:42,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:01:42,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:01:42,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:01:42,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:01:42,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 15:01:42,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:01:42,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:01:42,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:01:42,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:01:42,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:01:42,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:01:42,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:01:42,333 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:01:42,334 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:01:42,334 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:01:42,334 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:01:42,334 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:01:42,334 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:01:42,334 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:01:42,335 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:01:42,335 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:01:42,335 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:01:42,335 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:01:42,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:01:42,336 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:01:42,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:01:42,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:01:42,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:01:42,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:01:42,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:01:42,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:01:42,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:01:42,337 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 15:01:42,337 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:01:42,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:01:42,338 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:01:42,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:01:42,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:01:42,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:01:42,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:01:42,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:01:42,339 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:01:42,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:01:42,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:01:42,339 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:01:42,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:01:42,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:01:42,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:01:42,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 [2022-12-14 15:01:42,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:01:42,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:01:42,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:01:42,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:01:42,536 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:01:42,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/stack-1.i [2022-12-14 15:01:45,033 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:01:45,255 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:01:45,256 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/sv-benchmarks/c/pthread/stack-1.i [2022-12-14 15:01:45,268 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/data/e8cdc6e50/fe192fe4c8114837b1ea721b762e27ce/FLAG8614a942d [2022-12-14 15:01:45,280 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/data/e8cdc6e50/fe192fe4c8114837b1ea721b762e27ce [2022-12-14 15:01:45,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:01:45,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:01:45,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:01:45,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:01:45,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:01:45,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77513c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45, skipping insertion in model container [2022-12-14 15:01:45,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:01:45,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:01:45,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/sv-benchmarks/c/pthread/stack-1.i[41520,41533] [2022-12-14 15:01:45,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:01:45,635 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:01:45,660 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/sv-benchmarks/c/pthread/stack-1.i[41520,41533] [2022-12-14 15:01:45,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:01:45,701 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:01:45,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45 WrapperNode [2022-12-14 15:01:45,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:01:45,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:01:45,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:01:45,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:01:45,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,740 INFO L138 Inliner]: procedures = 277, calls = 43, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 196 [2022-12-14 15:01:45,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:01:45,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:01:45,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:01:45,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:01:45,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:01:45,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:01:45,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:01:45,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:01:45,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (1/1) ... [2022-12-14 15:01:45,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:01:45,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:01:45,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:01:45,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-14 15:01:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-14 15:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-14 15:01:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-14 15:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 15:01:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:01:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:01:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:01:45,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:01:45,833 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 15:01:45,938 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:01:45,940 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:01:46,192 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:01:46,201 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:01:46,201 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 15:01:46,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:01:46 BoogieIcfgContainer [2022-12-14 15:01:46,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:01:46,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:01:46,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:01:46,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:01:46,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:01:45" (1/3) ... [2022-12-14 15:01:46,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a1616c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:01:46, skipping insertion in model container [2022-12-14 15:01:46,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:45" (2/3) ... [2022-12-14 15:01:46,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a1616c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:01:46, skipping insertion in model container [2022-12-14 15:01:46,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:01:46" (3/3) ... [2022-12-14 15:01:46,209 INFO L112 eAbstractionObserver]: Analyzing ICFG stack-1.i [2022-12-14 15:01:46,216 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 15:01:46,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:01:46,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-12-14 15:01:46,224 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 15:01:46,290 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 15:01:46,314 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 15:01:46,325 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 229 transitions, 474 flow [2022-12-14 15:01:46,327 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 229 transitions, 474 flow [2022-12-14 15:01:46,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 229 transitions, 474 flow [2022-12-14 15:01:46,385 INFO L130 PetriNetUnfolder]: 10/227 cut-off events. [2022-12-14 15:01:46,386 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 15:01:46,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 227 events. 10/227 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 546 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-12-14 15:01:46,396 INFO L119 LiptonReduction]: Number of co-enabled transitions 17640 [2022-12-14 15:01:50,177 INFO L134 LiptonReduction]: Checked pairs total: 61741 [2022-12-14 15:01:50,177 INFO L136 LiptonReduction]: Total number of compositions: 164 [2022-12-14 15:01:50,185 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 188 flow [2022-12-14 15:01:50,369 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7414 states, 7323 states have (on average 3.0098320360507986) internal successors, (22041), 7413 states have internal predecessors, (22041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:50,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:01:50,390 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e286a44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:01:50,390 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-12-14 15:01:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 7414 states, 7323 states have (on average 3.0098320360507986) internal successors, (22041), 7413 states have internal predecessors, (22041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 15:01:50,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:50,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 15:01:50,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:50,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash 817586536, now seen corresponding path program 1 times [2022-12-14 15:01:50,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:50,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245378008] [2022-12-14 15:01:50,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:50,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:50,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245378008] [2022-12-14 15:01:50,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245378008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:50,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:50,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:01:50,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818045518] [2022-12-14 15:01:50,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:50,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:01:50,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:50,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:01:50,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:01:50,617 INFO L87 Difference]: Start difference. First operand has 7414 states, 7323 states have (on average 3.0098320360507986) internal successors, (22041), 7413 states have internal predecessors, (22041), 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, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:50,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:50,778 INFO L93 Difference]: Finished difference Result 7414 states and 21775 transitions. [2022-12-14 15:01:50,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:01:50,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 15:01:50,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:50,836 INFO L225 Difference]: With dead ends: 7414 [2022-12-14 15:01:50,836 INFO L226 Difference]: Without dead ends: 7413 [2022-12-14 15:01:50,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:01:50,839 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:50,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:01:50,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7413 states. [2022-12-14 15:01:51,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7413 to 7413. [2022-12-14 15:01:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7413 states, 7323 states have (on average 2.9732350129728253) internal successors, (21773), 7412 states have internal predecessors, (21773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 21773 transitions. [2022-12-14 15:01:51,091 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 21773 transitions. Word has length 5 [2022-12-14 15:01:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:51,092 INFO L495 AbstractCegarLoop]: Abstraction has 7413 states and 21773 transitions. [2022-12-14 15:01:51,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:51,092 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 21773 transitions. [2022-12-14 15:01:51,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:01:51,092 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:51,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 15:01:51,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:01:51,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:51,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:51,094 INFO L85 PathProgramCache]: Analyzing trace with hash -424618518, now seen corresponding path program 1 times [2022-12-14 15:01:51,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:51,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51989228] [2022-12-14 15:01:51,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:51,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:51,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:51,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51989228] [2022-12-14 15:01:51,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51989228] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:51,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:51,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:01:51,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230563420] [2022-12-14 15:01:51,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:51,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:01:51,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:01:51,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:01:51,182 INFO L87 Difference]: Start difference. First operand 7413 states and 21773 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:51,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:51,357 INFO L93 Difference]: Finished difference Result 9380 states and 26060 transitions. [2022-12-14 15:01:51,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:01:51,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-14 15:01:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:51,420 INFO L225 Difference]: With dead ends: 9380 [2022-12-14 15:01:51,420 INFO L226 Difference]: Without dead ends: 9380 [2022-12-14 15:01:51,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:01:51,421 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:51,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 67 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:01:51,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2022-12-14 15:01:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 7547. [2022-12-14 15:01:51,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7547 states, 7481 states have (on average 2.8064429889052267) internal successors, (20995), 7546 states have internal predecessors, (20995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:51,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7547 states to 7547 states and 20995 transitions. [2022-12-14 15:01:51,670 INFO L78 Accepts]: Start accepts. Automaton has 7547 states and 20995 transitions. Word has length 6 [2022-12-14 15:01:51,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:51,670 INFO L495 AbstractCegarLoop]: Abstraction has 7547 states and 20995 transitions. [2022-12-14 15:01:51,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:51,670 INFO L276 IsEmpty]: Start isEmpty. Operand 7547 states and 20995 transitions. [2022-12-14 15:01:51,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:01:51,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:51,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:51,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:01:51,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:51,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash -164830705, now seen corresponding path program 1 times [2022-12-14 15:01:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:51,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92326407] [2022-12-14 15:01:51,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:51,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:52,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:52,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92326407] [2022-12-14 15:01:52,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92326407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:52,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:52,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:01:52,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871860836] [2022-12-14 15:01:52,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:52,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:01:52,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:52,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:01:52,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:01:52,022 INFO L87 Difference]: Start difference. First operand 7547 states and 20995 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:52,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:52,439 INFO L93 Difference]: Finished difference Result 12155 states and 33408 transitions. [2022-12-14 15:01:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:01:52,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 15:01:52,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:52,474 INFO L225 Difference]: With dead ends: 12155 [2022-12-14 15:01:52,474 INFO L226 Difference]: Without dead ends: 12155 [2022-12-14 15:01:52,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:01:52,476 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 229 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:52,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 231 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:01:52,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12155 states. [2022-12-14 15:01:52,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12155 to 11022. [2022-12-14 15:01:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11022 states, 10956 states have (on average 2.8464768163563345) internal successors, (31186), 11021 states have internal predecessors, (31186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11022 states to 11022 states and 31186 transitions. [2022-12-14 15:01:52,745 INFO L78 Accepts]: Start accepts. Automaton has 11022 states and 31186 transitions. Word has length 10 [2022-12-14 15:01:52,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:52,745 INFO L495 AbstractCegarLoop]: Abstraction has 11022 states and 31186 transitions. [2022-12-14 15:01:52,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:52,746 INFO L276 IsEmpty]: Start isEmpty. Operand 11022 states and 31186 transitions. [2022-12-14 15:01:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:01:52,750 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:52,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:52,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:01:52,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:52,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash 431413622, now seen corresponding path program 1 times [2022-12-14 15:01:52,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:52,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817091187] [2022-12-14 15:01:52,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:52,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:53,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:53,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:53,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817091187] [2022-12-14 15:01:53,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817091187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:53,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:53,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:01:53,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912421627] [2022-12-14 15:01:53,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:53,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:01:53,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:53,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:01:53,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:01:53,012 INFO L87 Difference]: Start difference. First operand 11022 states and 31186 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) [2022-12-14 15:01:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:53,355 INFO L93 Difference]: Finished difference Result 12021 states and 34033 transitions. [2022-12-14 15:01:53,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:01:53,356 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 [2022-12-14 15:01:53,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:53,389 INFO L225 Difference]: With dead ends: 12021 [2022-12-14 15:01:53,389 INFO L226 Difference]: Without dead ends: 12021 [2022-12-14 15:01:53,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:01:53,390 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 128 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:53,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 131 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:01:53,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12021 states. [2022-12-14 15:01:53,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12021 to 12021. [2022-12-14 15:01:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12021 states, 11955 states have (on average 2.846758678377248) internal successors, (34033), 12020 states have internal predecessors, (34033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:53,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12021 states to 12021 states and 34033 transitions. [2022-12-14 15:01:53,618 INFO L78 Accepts]: Start accepts. Automaton has 12021 states and 34033 transitions. Word has length 16 [2022-12-14 15:01:53,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:53,618 INFO L495 AbstractCegarLoop]: Abstraction has 12021 states and 34033 transitions. [2022-12-14 15:01:53,618 INFO L496 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) [2022-12-14 15:01:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand 12021 states and 34033 transitions. [2022-12-14 15:01:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 15:01:53,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:53,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:53,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:01:53,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:53,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:53,620 INFO L85 PathProgramCache]: Analyzing trace with hash -180846188, now seen corresponding path program 1 times [2022-12-14 15:01:53,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:53,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688321576] [2022-12-14 15:01:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:53,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:53,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:53,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688321576] [2022-12-14 15:01:53,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688321576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:53,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:53,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:01:53,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173239559] [2022-12-14 15:01:53,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:53,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:01:53,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:53,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:01:53,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:01:53,653 INFO L87 Difference]: Start difference. First operand 12021 states and 34033 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:53,859 INFO L93 Difference]: Finished difference Result 20425 states and 58441 transitions. [2022-12-14 15:01:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:01:53,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-12-14 15:01:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:53,901 INFO L225 Difference]: With dead ends: 20425 [2022-12-14 15:01:53,901 INFO L226 Difference]: Without dead ends: 20425 [2022-12-14 15:01:53,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:01:53,902 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 69 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:53,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 100 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:01:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20425 states. [2022-12-14 15:01:54,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20425 to 12226. [2022-12-14 15:01:54,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12226 states, 12160 states have (on average 2.8479440789473682) internal successors, (34631), 12225 states have internal predecessors, (34631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:54,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12226 states to 12226 states and 34631 transitions. [2022-12-14 15:01:54,154 INFO L78 Accepts]: Start accepts. Automaton has 12226 states and 34631 transitions. Word has length 17 [2022-12-14 15:01:54,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:54,155 INFO L495 AbstractCegarLoop]: Abstraction has 12226 states and 34631 transitions. [2022-12-14 15:01:54,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:54,155 INFO L276 IsEmpty]: Start isEmpty. Operand 12226 states and 34631 transitions. [2022-12-14 15:01:54,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 15:01:54,156 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:54,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:54,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:01:54,157 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:54,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:54,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1053470332, now seen corresponding path program 1 times [2022-12-14 15:01:54,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:54,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698587428] [2022-12-14 15:01:54,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:54,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:54,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698587428] [2022-12-14 15:01:54,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698587428] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:54,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:54,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:01:54,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686070108] [2022-12-14 15:01:54,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:54,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:01:54,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:54,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:01:54,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:01:54,197 INFO L87 Difference]: Start difference. First operand 12226 states and 34631 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:54,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:54,353 INFO L93 Difference]: Finished difference Result 15312 states and 43011 transitions. [2022-12-14 15:01:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:01:54,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2022-12-14 15:01:54,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:54,399 INFO L225 Difference]: With dead ends: 15312 [2022-12-14 15:01:54,399 INFO L226 Difference]: Without dead ends: 15298 [2022-12-14 15:01:54,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:01:54,400 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 43 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:54,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 83 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:01:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15298 states. [2022-12-14 15:01:54,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15298 to 14813. [2022-12-14 15:01:54,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14813 states, 14747 states have (on average 2.8580728283718724) internal successors, (42148), 14812 states have internal predecessors, (42148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14813 states to 14813 states and 42148 transitions. [2022-12-14 15:01:54,728 INFO L78 Accepts]: Start accepts. Automaton has 14813 states and 42148 transitions. Word has length 18 [2022-12-14 15:01:54,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:54,728 INFO L495 AbstractCegarLoop]: Abstraction has 14813 states and 42148 transitions. [2022-12-14 15:01:54,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 14813 states and 42148 transitions. [2022-12-14 15:01:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:01:54,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:54,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:54,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:01:54,730 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:54,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:54,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1425471476, now seen corresponding path program 1 times [2022-12-14 15:01:54,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:54,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483195570] [2022-12-14 15:01:54,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:54,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:55,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:55,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483195570] [2022-12-14 15:01:55,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483195570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:55,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:55,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:01:55,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839021047] [2022-12-14 15:01:55,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:55,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:01:55,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:55,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:01:55,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:01:55,189 INFO L87 Difference]: Start difference. First operand 14813 states and 42148 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:01:55,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:55,712 INFO L93 Difference]: Finished difference Result 16160 states and 46206 transitions. [2022-12-14 15:01:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:01:55,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20 [2022-12-14 15:01:55,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:55,745 INFO L225 Difference]: With dead ends: 16160 [2022-12-14 15:01:55,745 INFO L226 Difference]: Without dead ends: 16160 [2022-12-14 15:01:55,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:01:55,746 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 278 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:55,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 163 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 15:01:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16160 states. [2022-12-14 15:01:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16160 to 15175. [2022-12-14 15:01:55,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15175 states, 15117 states have (on average 2.8738506317391015) internal successors, (43444), 15174 states have internal predecessors, (43444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:55,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15175 states to 15175 states and 43444 transitions. [2022-12-14 15:01:55,992 INFO L78 Accepts]: Start accepts. Automaton has 15175 states and 43444 transitions. Word has length 20 [2022-12-14 15:01:55,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:55,992 INFO L495 AbstractCegarLoop]: Abstraction has 15175 states and 43444 transitions. [2022-12-14 15:01:55,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:01:55,992 INFO L276 IsEmpty]: Start isEmpty. Operand 15175 states and 43444 transitions. [2022-12-14 15:01:55,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:01:55,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:55,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:55,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:01:55,994 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:55,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash -876878383, now seen corresponding path program 1 times [2022-12-14 15:01:55,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:55,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192641292] [2022-12-14 15:01:55,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:55,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:56,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:56,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192641292] [2022-12-14 15:01:56,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192641292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:56,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:56,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 15:01:56,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101751215] [2022-12-14 15:01:56,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:56,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:01:56,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:56,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:01:56,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:01:56,436 INFO L87 Difference]: Start difference. First operand 15175 states and 43444 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) 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) [2022-12-14 15:01:57,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:57,102 INFO L93 Difference]: Finished difference Result 18635 states and 52734 transitions. [2022-12-14 15:01:57,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 15:01:57,103 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) 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 20 [2022-12-14 15:01:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:57,140 INFO L225 Difference]: With dead ends: 18635 [2022-12-14 15:01:57,140 INFO L226 Difference]: Without dead ends: 18635 [2022-12-14 15:01:57,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:01:57,140 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 180 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:57,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 266 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:01:57,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18635 states. [2022-12-14 15:01:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18635 to 15456. [2022-12-14 15:01:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15456 states, 15398 states have (on average 2.876152747110014) internal successors, (44287), 15455 states have internal predecessors, (44287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:57,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 44287 transitions. [2022-12-14 15:01:57,396 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 44287 transitions. Word has length 20 [2022-12-14 15:01:57,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:57,396 INFO L495 AbstractCegarLoop]: Abstraction has 15456 states and 44287 transitions. [2022-12-14 15:01:57,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) 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) [2022-12-14 15:01:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 44287 transitions. [2022-12-14 15:01:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:01:57,398 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:57,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:57,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 15:01:57,398 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:57,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:57,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1502741679, now seen corresponding path program 2 times [2022-12-14 15:01:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:57,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367198616] [2022-12-14 15:01:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:57,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:57,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:57,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367198616] [2022-12-14 15:01:57,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367198616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:57,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:57,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:01:57,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816692110] [2022-12-14 15:01:57,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:57,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:01:57,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:57,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:01:57,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:01:57,662 INFO L87 Difference]: Start difference. First operand 15456 states and 44287 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:01:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:58,327 INFO L93 Difference]: Finished difference Result 20562 states and 59439 transitions. [2022-12-14 15:01:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:01:58,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20 [2022-12-14 15:01:58,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:58,366 INFO L225 Difference]: With dead ends: 20562 [2022-12-14 15:01:58,366 INFO L226 Difference]: Without dead ends: 20562 [2022-12-14 15:01:58,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-12-14 15:01:58,367 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 360 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:58,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 375 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:01:58,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20562 states. [2022-12-14 15:01:58,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20562 to 15407. [2022-12-14 15:01:58,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15407 states, 15349 states have (on average 2.8757573783308357) internal successors, (44140), 15406 states have internal predecessors, (44140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:01:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15407 states to 15407 states and 44140 transitions. [2022-12-14 15:01:58,626 INFO L78 Accepts]: Start accepts. Automaton has 15407 states and 44140 transitions. Word has length 20 [2022-12-14 15:01:58,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:58,626 INFO L495 AbstractCegarLoop]: Abstraction has 15407 states and 44140 transitions. [2022-12-14 15:01:58,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:01:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 15407 states and 44140 transitions. [2022-12-14 15:01:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:01:58,628 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:58,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:58,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 15:01:58,628 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:01:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:58,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1583136009, now seen corresponding path program 3 times [2022-12-14 15:01:58,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:58,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898486252] [2022-12-14 15:01:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:58,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:58,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:58,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898486252] [2022-12-14 15:01:58,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898486252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:58,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:58,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:01:58,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163698417] [2022-12-14 15:01:58,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:58,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:01:58,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:01:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:01:58,895 INFO L87 Difference]: Start difference. First operand 15407 states and 44140 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:01:59,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:59,903 INFO L93 Difference]: Finished difference Result 35623 states and 101147 transitions. [2022-12-14 15:01:59,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:01:59,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20 [2022-12-14 15:01:59,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:59,991 INFO L225 Difference]: With dead ends: 35623 [2022-12-14 15:01:59,991 INFO L226 Difference]: Without dead ends: 35623 [2022-12-14 15:01:59,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:01:59,992 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 396 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:59,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 583 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 15:02:00,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35623 states. [2022-12-14 15:02:00,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35623 to 14138. [2022-12-14 15:02:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14138 states, 14080 states have (on average 2.867400568181818) internal successors, (40373), 14137 states have internal predecessors, (40373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14138 states to 14138 states and 40373 transitions. [2022-12-14 15:02:00,446 INFO L78 Accepts]: Start accepts. Automaton has 14138 states and 40373 transitions. Word has length 20 [2022-12-14 15:02:00,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:00,446 INFO L495 AbstractCegarLoop]: Abstraction has 14138 states and 40373 transitions. [2022-12-14 15:02:00,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:02:00,447 INFO L276 IsEmpty]: Start isEmpty. Operand 14138 states and 40373 transitions. [2022-12-14 15:02:00,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:02:00,448 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:00,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:00,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 15:02:00,449 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:00,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:00,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1200840823, now seen corresponding path program 4 times [2022-12-14 15:02:00,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:00,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680196394] [2022-12-14 15:02:00,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:00,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:00,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:00,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680196394] [2022-12-14 15:02:00,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680196394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:00,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:00,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:02:00,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44827396] [2022-12-14 15:02:00,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:00,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:02:00,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:00,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:02:00,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:02:00,748 INFO L87 Difference]: Start difference. First operand 14138 states and 40373 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:02:01,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:01,703 INFO L93 Difference]: Finished difference Result 27025 states and 75633 transitions. [2022-12-14 15:02:01,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:02:01,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20 [2022-12-14 15:02:01,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:01,768 INFO L225 Difference]: With dead ends: 27025 [2022-12-14 15:02:01,768 INFO L226 Difference]: Without dead ends: 27025 [2022-12-14 15:02:01,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-12-14 15:02:01,769 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 414 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:01,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 515 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 15:02:01,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27025 states. [2022-12-14 15:02:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27025 to 14126. [2022-12-14 15:02:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14126 states, 14068 states have (on average 2.86728746090418) internal successors, (40337), 14125 states have internal predecessors, (40337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:02,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14126 states to 14126 states and 40337 transitions. [2022-12-14 15:02:02,156 INFO L78 Accepts]: Start accepts. Automaton has 14126 states and 40337 transitions. Word has length 20 [2022-12-14 15:02:02,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:02,156 INFO L495 AbstractCegarLoop]: Abstraction has 14126 states and 40337 transitions. [2022-12-14 15:02:02,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:02:02,156 INFO L276 IsEmpty]: Start isEmpty. Operand 14126 states and 40337 transitions. [2022-12-14 15:02:02,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:02:02,158 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:02,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:02,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 15:02:02,158 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:02,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:02,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1751451543, now seen corresponding path program 5 times [2022-12-14 15:02:02,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:02,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360888925] [2022-12-14 15:02:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:02,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:02,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:02,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:02,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360888925] [2022-12-14 15:02:02,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360888925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:02,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:02,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:02:02,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795481358] [2022-12-14 15:02:02,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:02,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:02:02,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:02,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:02:02,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:02:02,398 INFO L87 Difference]: Start difference. First operand 14126 states and 40337 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:02:03,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:03,098 INFO L93 Difference]: Finished difference Result 26921 states and 75321 transitions. [2022-12-14 15:02:03,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:02:03,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20 [2022-12-14 15:02:03,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:03,148 INFO L225 Difference]: With dead ends: 26921 [2022-12-14 15:02:03,148 INFO L226 Difference]: Without dead ends: 26921 [2022-12-14 15:02:03,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:02:03,149 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 444 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:03,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 429 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:02:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26921 states. [2022-12-14 15:02:03,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26921 to 9075. [2022-12-14 15:02:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9075 states, 9043 states have (on average 2.80260975340042) internal successors, (25344), 9074 states have internal predecessors, (25344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:03,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9075 states to 9075 states and 25344 transitions. [2022-12-14 15:02:03,353 INFO L78 Accepts]: Start accepts. Automaton has 9075 states and 25344 transitions. Word has length 20 [2022-12-14 15:02:03,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:03,353 INFO L495 AbstractCegarLoop]: Abstraction has 9075 states and 25344 transitions. [2022-12-14 15:02:03,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2022-12-14 15:02:03,353 INFO L276 IsEmpty]: Start isEmpty. Operand 9075 states and 25344 transitions. [2022-12-14 15:02:03,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 15:02:03,354 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:03,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:03,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 15:02:03,355 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:03,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:03,355 INFO L85 PathProgramCache]: Analyzing trace with hash -617085669, now seen corresponding path program 1 times [2022-12-14 15:02:03,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:03,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769143094] [2022-12-14 15:02:03,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:03,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:03,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:03,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769143094] [2022-12-14 15:02:03,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769143094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:03,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:03,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:02:03,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379267709] [2022-12-14 15:02:03,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:03,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:02:03,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:03,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:02:03,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:03,377 INFO L87 Difference]: Start difference. First operand 9075 states and 25344 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:03,487 INFO L93 Difference]: Finished difference Result 9220 states and 25760 transitions. [2022-12-14 15:02:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:02:03,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-12-14 15:02:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:03,503 INFO L225 Difference]: With dead ends: 9220 [2022-12-14 15:02:03,503 INFO L226 Difference]: Without dead ends: 9220 [2022-12-14 15:02:03,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:03,503 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 38 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:03,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 71 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:02:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9220 states. [2022-12-14 15:02:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9220 to 9220. [2022-12-14 15:02:03,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9220 states, 9192 states have (on average 2.802436901653612) internal successors, (25760), 9219 states have internal predecessors, (25760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9220 states to 9220 states and 25760 transitions. [2022-12-14 15:02:03,623 INFO L78 Accepts]: Start accepts. Automaton has 9220 states and 25760 transitions. Word has length 22 [2022-12-14 15:02:03,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:03,623 INFO L495 AbstractCegarLoop]: Abstraction has 9220 states and 25760 transitions. [2022-12-14 15:02:03,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 9220 states and 25760 transitions. [2022-12-14 15:02:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 15:02:03,624 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:03,624 INFO L195 NwaCegarLoop]: 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, 1, 1] [2022-12-14 15:02:03,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 15:02:03,624 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:03,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:03,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1262130700, now seen corresponding path program 1 times [2022-12-14 15:02:03,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:03,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41192975] [2022-12-14 15:02:03,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:03,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:03,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:03,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:03,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41192975] [2022-12-14 15:02:03,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41192975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:03,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:03,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:02:03,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365781495] [2022-12-14 15:02:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:03,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:02:03,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:03,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:02:03,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:03,669 INFO L87 Difference]: Start difference. First operand 9220 states and 25760 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2022-12-14 15:02:03,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:03,722 INFO L93 Difference]: Finished difference Result 1814 states and 4607 transitions. [2022-12-14 15:02:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:02:03,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 27 [2022-12-14 15:02:03,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:03,726 INFO L225 Difference]: With dead ends: 1814 [2022-12-14 15:02:03,726 INFO L226 Difference]: Without dead ends: 1814 [2022-12-14 15:02:03,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:03,727 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:03,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 49 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:02:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2022-12-14 15:02:03,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1515. [2022-12-14 15:02:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 2.5) internal successors, (3775), 1514 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:03,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 3775 transitions. [2022-12-14 15:02:03,752 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 3775 transitions. Word has length 27 [2022-12-14 15:02:03,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:03,752 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 3775 transitions. [2022-12-14 15:02:03,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2022-12-14 15:02:03,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 3775 transitions. [2022-12-14 15:02:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 15:02:03,753 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:03,754 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:03,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 15:02:03,754 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:03,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:03,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1796491531, now seen corresponding path program 1 times [2022-12-14 15:02:03,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:03,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536026569] [2022-12-14 15:02:03,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:03,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:03,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:03,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:03,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536026569] [2022-12-14 15:02:03,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536026569] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:02:03,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168907501] [2022-12-14 15:02:03,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:03,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:03,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:02:03,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:02:03,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:02:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:03,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:02:03,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:02:03,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:03,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:02:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:03,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168907501] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:02:03,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [923353617] [2022-12-14 15:02:03,985 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2022-12-14 15:02:03,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:02:03,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 15:02:03,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630708498] [2022-12-14 15:02:03,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:02:03,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:02:03,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:03,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:02:03,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:02:03,987 INFO L87 Difference]: Start difference. First operand 1515 states and 3775 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:04,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:04,147 INFO L93 Difference]: Finished difference Result 3974 states and 9734 transitions. [2022-12-14 15:02:04,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:02:04,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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 37 [2022-12-14 15:02:04,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:04,151 INFO L225 Difference]: With dead ends: 3974 [2022-12-14 15:02:04,151 INFO L226 Difference]: Without dead ends: 3974 [2022-12-14 15:02:04,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:02:04,152 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 213 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:04,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 190 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:02:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2022-12-14 15:02:04,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3946. [2022-12-14 15:02:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3946 states, 3939 states have (on average 2.465092663112465) internal successors, (9710), 3945 states have internal predecessors, (9710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 9710 transitions. [2022-12-14 15:02:04,191 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 9710 transitions. Word has length 37 [2022-12-14 15:02:04,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:04,191 INFO L495 AbstractCegarLoop]: Abstraction has 3946 states and 9710 transitions. [2022-12-14 15:02:04,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 9710 transitions. [2022-12-14 15:02:04,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 15:02:04,193 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:04,193 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:04,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:02:04,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 15:02:04,395 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:04,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:04,396 INFO L85 PathProgramCache]: Analyzing trace with hash 376697022, now seen corresponding path program 1 times [2022-12-14 15:02:04,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:04,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107221094] [2022-12-14 15:02:04,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:04,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:04,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:04,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107221094] [2022-12-14 15:02:04,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107221094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:04,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:04,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:02:04,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190910553] [2022-12-14 15:02:04,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:04,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:02:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:02:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:04,498 INFO L87 Difference]: Start difference. First operand 3946 states and 9710 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:04,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:04,587 INFO L93 Difference]: Finished difference Result 3918 states and 9636 transitions. [2022-12-14 15:02:04,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:02:04,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2022-12-14 15:02:04,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:04,592 INFO L225 Difference]: With dead ends: 3918 [2022-12-14 15:02:04,593 INFO L226 Difference]: Without dead ends: 3918 [2022-12-14 15:02:04,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:04,593 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:04,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 60 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:02:04,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2022-12-14 15:02:04,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3918. [2022-12-14 15:02:04,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3914 states have (on average 2.461931527848748) internal successors, (9636), 3917 states have internal predecessors, (9636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 9636 transitions. [2022-12-14 15:02:04,641 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 9636 transitions. Word has length 39 [2022-12-14 15:02:04,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:04,641 INFO L495 AbstractCegarLoop]: Abstraction has 3918 states and 9636 transitions. [2022-12-14 15:02:04,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:04,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 9636 transitions. [2022-12-14 15:02:04,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 15:02:04,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:04,644 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:04,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 15:02:04,644 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:04,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1582644096, now seen corresponding path program 1 times [2022-12-14 15:02:04,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:04,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328648398] [2022-12-14 15:02:04,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:04,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:04,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:04,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:04,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328648398] [2022-12-14 15:02:04,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328648398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:04,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:04,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:02:04,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048482630] [2022-12-14 15:02:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:04,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:02:04,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:04,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:02:04,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:02:04,882 INFO L87 Difference]: Start difference. First operand 3918 states and 9636 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:05,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:05,126 INFO L93 Difference]: Finished difference Result 3890 states and 9562 transitions. [2022-12-14 15:02:05,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:02:05,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-12-14 15:02:05,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:05,131 INFO L225 Difference]: With dead ends: 3890 [2022-12-14 15:02:05,131 INFO L226 Difference]: Without dead ends: 3838 [2022-12-14 15:02:05,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:02:05,132 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:05,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 65 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:02:05,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3838 states. [2022-12-14 15:02:05,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3838 to 3838. [2022-12-14 15:02:05,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3838 states, 3837 states have (on average 2.464425332290852) internal successors, (9456), 3837 states have internal predecessors, (9456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 9456 transitions. [2022-12-14 15:02:05,177 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 9456 transitions. Word has length 48 [2022-12-14 15:02:05,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:05,177 INFO L495 AbstractCegarLoop]: Abstraction has 3838 states and 9456 transitions. [2022-12-14 15:02:05,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:05,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 9456 transitions. [2022-12-14 15:02:05,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 15:02:05,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:05,180 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:05,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 15:02:05,181 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:05,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:05,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1590699583, now seen corresponding path program 1 times [2022-12-14 15:02:05,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:05,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146836528] [2022-12-14 15:02:05,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:05,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:02:05,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:05,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146836528] [2022-12-14 15:02:05,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146836528] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:02:05,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918773244] [2022-12-14 15:02:05,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:05,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:05,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:02:05,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:02:05,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:02:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:05,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:02:05,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:02:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:02:05,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:02:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:02:05,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918773244] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:02:05,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1448712896] [2022-12-14 15:02:05,431 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2022-12-14 15:02:05,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:02:05,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-12-14 15:02:05,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085473190] [2022-12-14 15:02:05,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:02:05,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:02:05,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:05,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:02:05,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:02:05,432 INFO L87 Difference]: Start difference. First operand 3838 states and 9456 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:05,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:05,627 INFO L93 Difference]: Finished difference Result 8373 states and 20474 transitions. [2022-12-14 15:02:05,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 15:02:05,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 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 52 [2022-12-14 15:02:05,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:05,636 INFO L225 Difference]: With dead ends: 8373 [2022-12-14 15:02:05,636 INFO L226 Difference]: Without dead ends: 8373 [2022-12-14 15:02:05,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-12-14 15:02:05,637 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 265 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:05,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 204 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:02:05,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8373 states. [2022-12-14 15:02:05,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8373 to 6108. [2022-12-14 15:02:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 6107 states have (on average 2.4923857868020303) internal successors, (15221), 6107 states have internal predecessors, (15221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 15221 transitions. [2022-12-14 15:02:05,713 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 15221 transitions. Word has length 52 [2022-12-14 15:02:05,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:05,713 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 15221 transitions. [2022-12-14 15:02:05,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 15221 transitions. [2022-12-14 15:02:05,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 15:02:05,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:05,719 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:05,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:02:05,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:05,921 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:05,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:05,921 INFO L85 PathProgramCache]: Analyzing trace with hash -838518038, now seen corresponding path program 1 times [2022-12-14 15:02:05,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:05,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801743056] [2022-12-14 15:02:05,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:05,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:06,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:06,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801743056] [2022-12-14 15:02:06,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801743056] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:02:06,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644649836] [2022-12-14 15:02:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:06,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:06,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:02:06,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:02:06,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:02:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:06,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 15:02:06,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:02:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 15:02:06,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:02:06,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644649836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:06,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:02:06,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-12-14 15:02:06,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977340789] [2022-12-14 15:02:06,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:06,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:02:06,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:06,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:02:06,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:02:06,210 INFO L87 Difference]: Start difference. First operand 6108 states and 15221 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:06,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:06,380 INFO L93 Difference]: Finished difference Result 8622 states and 21280 transitions. [2022-12-14 15:02:06,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:02:06,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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 76 [2022-12-14 15:02:06,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:06,390 INFO L225 Difference]: With dead ends: 8622 [2022-12-14 15:02:06,390 INFO L226 Difference]: Without dead ends: 8622 [2022-12-14 15:02:06,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-12-14 15:02:06,390 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 90 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:06,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 168 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:02:06,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8622 states. [2022-12-14 15:02:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8622 to 7343. [2022-12-14 15:02:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.5128030509397985) internal successors, (18449), 7342 states have internal predecessors, (18449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 18449 transitions. [2022-12-14 15:02:06,488 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 18449 transitions. Word has length 76 [2022-12-14 15:02:06,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:06,488 INFO L495 AbstractCegarLoop]: Abstraction has 7343 states and 18449 transitions. [2022-12-14 15:02:06,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:06,488 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 18449 transitions. [2022-12-14 15:02:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 15:02:06,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:06,493 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:06,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 15:02:06,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:06,695 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-12-14 15:02:06,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:06,697 INFO L85 PathProgramCache]: Analyzing trace with hash 378156863, now seen corresponding path program 2 times [2022-12-14 15:02:06,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:06,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327768314] [2022-12-14 15:02:06,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:06,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:06,839 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:06,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:06,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327768314] [2022-12-14 15:02:06,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327768314] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:02:06,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433361744] [2022-12-14 15:02:06,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:02:06,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:06,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:02:06,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:02:06,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:02:06,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 15:02:06,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:02:06,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 15:02:06,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:02:07,043 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:07,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:07,061 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 15:02:07,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:07,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:07,085 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:02:07,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 15:02:07,102 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-12-14 15:02:07,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:02:07,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433361744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:07,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:02:07,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-12-14 15:02:07,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205566198] [2022-12-14 15:02:07,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:07,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:02:07,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:07,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:02:07,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:02:07,104 INFO L87 Difference]: Start difference. First operand 7343 states and 18449 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:07,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:07,279 INFO L93 Difference]: Finished difference Result 7287 states and 18331 transitions. [2022-12-14 15:02:07,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:02:07,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 82 [2022-12-14 15:02:07,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:07,280 INFO L225 Difference]: With dead ends: 7287 [2022-12-14 15:02:07,280 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:02:07,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:02:07,281 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 104 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:07,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 80 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:02:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:02:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:02:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:02:07,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2022-12-14 15:02:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:07,282 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:02:07,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:02:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:02:07,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:02:07,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-12-14 15:02:07,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-12-14 15:02:07,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-12-14 15:02:07,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:02:07,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:07,494 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:07,505 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 15:02:07,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:02:07,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:02:07 BasicIcfg [2022-12-14 15:02:07,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:02:07,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:02:07,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:02:07,513 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:02:07,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:01:46" (3/4) ... [2022-12-14 15:02:07,521 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:02:07,537 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-12-14 15:02:07,537 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-12-14 15:02:07,545 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 15:02:07,545 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 15:02:07,545 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 15:02:07,546 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:02:07,578 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:02:07,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:02:07,579 INFO L158 Benchmark]: Toolchain (without parser) took 22295.47ms. Allocated memory was 119.5MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 84.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 406.7MB. Max. memory is 16.1GB. [2022-12-14 15:02:07,579 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:02:07,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.63ms. Allocated memory is still 119.5MB. Free memory was 84.6MB in the beginning and 54.9MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-14 15:02:07,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.48ms. Allocated memory is still 119.5MB. Free memory was 54.9MB in the beginning and 52.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:02:07,579 INFO L158 Benchmark]: Boogie Preprocessor took 23.80ms. Allocated memory is still 119.5MB. Free memory was 52.1MB in the beginning and 50.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:02:07,580 INFO L158 Benchmark]: RCFGBuilder took 438.21ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 49.6MB in the beginning and 100.8MB in the end (delta: -51.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-12-14 15:02:07,580 INFO L158 Benchmark]: TraceAbstraction took 21307.28ms. Allocated memory was 144.7MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 100.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 391.0MB. Max. memory is 16.1GB. [2022-12-14 15:02:07,580 INFO L158 Benchmark]: Witness Printer took 65.36ms. Allocated memory is still 1.9GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:02:07,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.63ms. Allocated memory is still 119.5MB. Free memory was 84.6MB in the beginning and 54.9MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.48ms. Allocated memory is still 119.5MB. Free memory was 54.9MB in the beginning and 52.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.80ms. Allocated memory is still 119.5MB. Free memory was 52.1MB in the beginning and 50.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.21ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 49.6MB in the beginning and 100.8MB in the end (delta: -51.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 21307.28ms. Allocated memory was 144.7MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 100.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 391.0MB. Max. memory is 16.1GB. * Witness Printer took 65.36ms. Allocated memory is still 1.9GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 226 PlacesBefore, 87 PlacesAfterwards, 229 TransitionsBefore, 86 TransitionsAfterwards, 17640 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 4 ChoiceCompositions, 164 TotalNumberOfCompositions, 61741 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29203, independent: 28313, independent conditional: 0, independent unconditional: 28313, dependent: 890, dependent conditional: 0, dependent unconditional: 890, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12966, independent: 12739, independent conditional: 0, independent unconditional: 12739, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12966, independent: 12596, independent conditional: 0, independent unconditional: 12596, dependent: 370, dependent conditional: 0, dependent unconditional: 370, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 370, independent: 143, independent conditional: 0, independent unconditional: 143, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 530, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 341, dependent conditional: 0, dependent unconditional: 341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29203, independent: 15574, independent conditional: 0, independent unconditional: 15574, dependent: 663, dependent conditional: 0, dependent unconditional: 663, unknown: 12966, unknown conditional: 0, unknown unconditional: 12966] , Statistics on independence cache: Total cache size (in pairs): 2243, Positive cache size: 2122, Positive conditional cache size: 0, Positive unconditional cache size: 2122, Negative cache size: 121, Negative conditional cache size: 0, Negative unconditional cache size: 121, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1024]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1025]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 962]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 954]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 969]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 946]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 946]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1009]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 976]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 950]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 950]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 954]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 984]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 372 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 21.2s, OverallIterations: 20, TraceHistogramMax: 4, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3392 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3392 mSDsluCounter, 3871 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2487 mSDsCounter, 439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8148 IncrementalHoareTripleChecker+Invalid, 8587 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 439 mSolverCounterUnsat, 1384 mSDtfsCounter, 8148 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 471 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15456occurred in iteration=8, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 20 MinimizatonAttempts, 77070 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 822 NumberOfCodeBlocks, 757 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 885 ConstructedInterpolants, 0 QuantifiedInterpolants, 4293 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1348 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 203/331 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 15:02:07,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcbcad2-e782-4c70-b4d1-ea348f6d5b45/bin/utaipan-gh47qXpMRh/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 Writing output log to file Ultimate.log Result: TRUE