./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:30:40,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:30:40,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:30:40,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:30:40,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:30:40,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:30:40,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:30:40,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:30:40,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:30:40,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:30:40,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:30:40,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:30:40,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:30:40,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:30:40,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:30:40,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:30:40,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:30:40,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:30:40,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:30:40,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:30:40,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:30:40,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:30:40,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:30:40,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:30:40,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:30:40,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:30:40,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:30:40,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:30:40,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:30:40,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:30:40,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:30:40,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:30:40,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:30:40,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:30:40,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:30:40,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:30:40,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:30:40,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:30:40,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:30:40,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:30:40,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:30:40,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:30:40,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:30:40,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:30:40,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:30:40,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:30:40,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:30:40,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:30:40,916 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:30:40,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:30:40,917 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:30:40,917 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:30:40,918 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:30:40,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:30:40,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:30:40,919 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:30:40,919 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:30:40,919 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:30:40,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:30:40,920 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:30:40,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:30:40,921 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:30:40,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:30:40,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:30:40,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:30:40,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:30:40,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:30:40,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:30:40,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:30:40,923 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:30:40,923 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:30:40,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:30:40,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:30:40,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:30:40,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:30:40,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:30:40,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:30:40,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:30:40,926 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:30:40,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:30:40,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:30:40,927 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:30:40,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:30:40,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:30:40,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:30:40,928 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_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 [2022-11-26 00:30:41,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:30:41,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:30:41,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:30:41,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:30:41,276 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:30:41,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/stack_longer-1.i [2022-11-26 00:30:44,411 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:30:44,781 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:30:44,781 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/sv-benchmarks/c/pthread/stack_longer-1.i [2022-11-26 00:30:44,796 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/data/c392b3f7c/1d4e4e7c0b364968b6b5d27673486cc6/FLAG2ed803cbe [2022-11-26 00:30:44,811 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/data/c392b3f7c/1d4e4e7c0b364968b6b5d27673486cc6 [2022-11-26 00:30:44,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:30:44,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:30:44,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:30:44,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:30:44,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:30:44,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:30:44" (1/1) ... [2022-11-26 00:30:44,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79eeb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:44, skipping insertion in model container [2022-11-26 00:30:44,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:30:44" (1/1) ... [2022-11-26 00:30:44,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:30:44,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:30:45,368 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_c75d8836-9a17-451e-bcad-44f5c38011ce/sv-benchmarks/c/pthread/stack_longer-1.i[41527,41540] [2022-11-26 00:30:45,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:30:45,431 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:30:45,489 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_c75d8836-9a17-451e-bcad-44f5c38011ce/sv-benchmarks/c/pthread/stack_longer-1.i[41527,41540] [2022-11-26 00:30:45,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:30:45,595 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:30:45,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45 WrapperNode [2022-11-26 00:30:45,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:30:45,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:30:45,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:30:45,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:30:45,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,682 INFO L138 Inliner]: procedures = 277, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 203 [2022-11-26 00:30:45,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:30:45,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:30:45,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:30:45,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:30:45,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,718 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:30:45,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:30:45,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:30:45,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:30:45,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (1/1) ... [2022-11-26 00:30:45,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:30:45,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:30:45,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:30:45,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:30:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-26 00:30:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-26 00:30:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-26 00:30:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-26 00:30:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:30:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:30:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:30:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:30:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:30:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:30:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:30:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:30:45,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:30:45,831 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:30:46,076 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:30:46,078 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:30:46,529 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:30:46,538 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:30:46,544 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:30:46,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:30:46 BoogieIcfgContainer [2022-11-26 00:30:46,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:30:46,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:30:46,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:30:46,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:30:46,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:30:44" (1/3) ... [2022-11-26 00:30:46,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e03cc5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:30:46, skipping insertion in model container [2022-11-26 00:30:46,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:45" (2/3) ... [2022-11-26 00:30:46,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e03cc5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:30:46, skipping insertion in model container [2022-11-26 00:30:46,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:30:46" (3/3) ... [2022-11-26 00:30:46,561 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2022-11-26 00:30:46,570 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:30:46,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:30:46,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-26 00:30:46,583 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:30:46,734 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 00:30:46,784 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:30:46,819 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 239 transitions, 494 flow [2022-11-26 00:30:46,822 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 239 transitions, 494 flow [2022-11-26 00:30:46,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 239 transitions, 494 flow [2022-11-26 00:30:47,038 INFO L130 PetriNetUnfolder]: 10/237 cut-off events. [2022-11-26 00:30:47,038 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 00:30:47,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 237 events. 10/237 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 584 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2022-11-26 00:30:47,064 INFO L119 LiptonReduction]: Number of co-enabled transitions 20432 [2022-11-26 00:30:53,246 INFO L134 LiptonReduction]: Checked pairs total: 70632 [2022-11-26 00:30:53,247 INFO L136 LiptonReduction]: Total number of compositions: 174 [2022-11-26 00:30:53,253 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 89 transitions, 194 flow [2022-11-26 00:30:53,539 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7968 states, 7863 states have (on average 3.042223070075035) internal successors, (23921), 7967 states have internal predecessors, (23921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:53,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:30:53,572 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;@492a3c0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:30:53,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-26 00:30:53,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 7968 states, 7863 states have (on average 3.042223070075035) internal successors, (23921), 7967 states have internal predecessors, (23921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:30:53,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:53,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:30:53,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:30:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:53,629 INFO L85 PathProgramCache]: Analyzing trace with hash 861223087, now seen corresponding path program 1 times [2022-11-26 00:30:53,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:53,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27600986] [2022-11-26 00:30:53,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:53,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:30:53,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:53,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27600986] [2022-11-26 00:30:53,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27600986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:53,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:53,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:30:53,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874304724] [2022-11-26 00:30:53,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:53,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:30:53,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:53,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:30:53,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:30:53,964 INFO L87 Difference]: Start difference. First operand has 7968 states, 7863 states have (on average 3.042223070075035) internal successors, (23921), 7967 states have internal predecessors, (23921), 0 states have call successors, (0), 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) [2022-11-26 00:30:54,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:54,173 INFO L93 Difference]: Finished difference Result 7968 states and 23421 transitions. [2022-11-26 00:30:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:30:54,175 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 [2022-11-26 00:30:54,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:54,257 INFO L225 Difference]: With dead ends: 7968 [2022-11-26 00:30:54,257 INFO L226 Difference]: Without dead ends: 7967 [2022-11-26 00:30:54,258 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 [2022-11-26 00:30:54,262 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:54,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:30:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7967 states. [2022-11-26 00:30:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7967 to 7967. [2022-11-26 00:30:54,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7967 states, 7863 states have (on average 2.9783797532748313) internal successors, (23419), 7966 states have internal predecessors, (23419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7967 states to 7967 states and 23419 transitions. [2022-11-26 00:30:54,711 INFO L78 Accepts]: Start accepts. Automaton has 7967 states and 23419 transitions. Word has length 5 [2022-11-26 00:30:54,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:54,712 INFO L495 AbstractCegarLoop]: Abstraction has 7967 states and 23419 transitions. [2022-11-26 00:30:54,713 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) [2022-11-26 00:30:54,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7967 states and 23419 transitions. [2022-11-26 00:30:54,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:30:54,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:54,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:30:54,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:30:54,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:30:54,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash 928106896, now seen corresponding path program 1 times [2022-11-26 00:30:54,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:54,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796257287] [2022-11-26 00:30:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:54,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:30:54,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:54,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796257287] [2022-11-26 00:30:54,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796257287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:54,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:54,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:30:54,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905405029] [2022-11-26 00:30:54,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:54,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:30:54,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:54,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:30:54,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:30:54,849 INFO L87 Difference]: Start difference. First operand 7967 states and 23419 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) [2022-11-26 00:30:55,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:55,106 INFO L93 Difference]: Finished difference Result 10904 states and 30675 transitions. [2022-11-26 00:30:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:30:55,107 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 [2022-11-26 00:30:55,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:55,238 INFO L225 Difference]: With dead ends: 10904 [2022-11-26 00:30:55,238 INFO L226 Difference]: Without dead ends: 10904 [2022-11-26 00:30:55,238 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 [2022-11-26 00:30:55,240 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 67 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:55,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 77 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:30:55,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10904 states. [2022-11-26 00:30:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10904 to 8174. [2022-11-26 00:30:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8174 states, 8088 states have (on average 2.84582096933729) internal successors, (23017), 8173 states have internal predecessors, (23017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:55,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8174 states to 8174 states and 23017 transitions. [2022-11-26 00:30:55,621 INFO L78 Accepts]: Start accepts. Automaton has 8174 states and 23017 transitions. Word has length 6 [2022-11-26 00:30:55,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:55,622 INFO L495 AbstractCegarLoop]: Abstraction has 8174 states and 23017 transitions. [2022-11-26 00:30:55,622 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) [2022-11-26 00:30:55,622 INFO L276 IsEmpty]: Start isEmpty. Operand 8174 states and 23017 transitions. [2022-11-26 00:30:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:30:55,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:55,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:30:55,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:30:55,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:30:55,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:55,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1219850205, now seen corresponding path program 1 times [2022-11-26 00:30:55,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:55,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883937682] [2022-11-26 00:30:55,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:55,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:55,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:30:55,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:55,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883937682] [2022-11-26 00:30:55,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883937682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:55,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:55,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:30:55,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431135875] [2022-11-26 00:30:55,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:55,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:30:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:55,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:30:55,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:30:55,730 INFO L87 Difference]: Start difference. First operand 8174 states and 23017 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:56,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:56,050 INFO L93 Difference]: Finished difference Result 14610 states and 41729 transitions. [2022-11-26 00:30:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:30:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:30:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:56,114 INFO L225 Difference]: With dead ends: 14610 [2022-11-26 00:30:56,114 INFO L226 Difference]: Without dead ends: 14610 [2022-11-26 00:30:56,114 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 [2022-11-26 00:30:56,116 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 75 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:56,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 103 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:30:56,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14610 states. [2022-11-26 00:30:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14610 to 8365. [2022-11-26 00:30:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8365 states, 8285 states have (on average 2.8744719372359686) internal successors, (23815), 8364 states have internal predecessors, (23815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8365 states to 8365 states and 23815 transitions. [2022-11-26 00:30:56,579 INFO L78 Accepts]: Start accepts. Automaton has 8365 states and 23815 transitions. Word has length 8 [2022-11-26 00:30:56,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:56,580 INFO L495 AbstractCegarLoop]: Abstraction has 8365 states and 23815 transitions. [2022-11-26 00:30:56,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:56,581 INFO L276 IsEmpty]: Start isEmpty. Operand 8365 states and 23815 transitions. [2022-11-26 00:30:56,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:30:56,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:56,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:30:56,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:30:56,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:30:56,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:56,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1087635142, now seen corresponding path program 1 times [2022-11-26 00:30:56,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:56,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141125505] [2022-11-26 00:30:56,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:56,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:30:56,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:56,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141125505] [2022-11-26 00:30:56,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141125505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:56,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:56,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:30:56,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635499372] [2022-11-26 00:30:56,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:56,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:30:56,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:56,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:30:56,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:30:56,730 INFO L87 Difference]: Start difference. First operand 8365 states and 23815 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:57,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:57,147 INFO L93 Difference]: Finished difference Result 12845 states and 36666 transitions. [2022-11-26 00:30:57,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:30:57,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-26 00:30:57,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:57,247 INFO L225 Difference]: With dead ends: 12845 [2022-11-26 00:30:57,248 INFO L226 Difference]: Without dead ends: 12845 [2022-11-26 00:30:57,248 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 [2022-11-26 00:30:57,251 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 57 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:57,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 88 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:30:57,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12845 states. [2022-11-26 00:30:57,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12845 to 9901. [2022-11-26 00:30:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9901 states, 9821 states have (on average 2.9392118928825983) internal successors, (28866), 9900 states have internal predecessors, (28866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:57,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9901 states to 9901 states and 28866 transitions. [2022-11-26 00:30:57,755 INFO L78 Accepts]: Start accepts. Automaton has 9901 states and 28866 transitions. Word has length 10 [2022-11-26 00:30:57,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:57,756 INFO L495 AbstractCegarLoop]: Abstraction has 9901 states and 28866 transitions. [2022-11-26 00:30:57,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:57,756 INFO L276 IsEmpty]: Start isEmpty. Operand 9901 states and 28866 transitions. [2022-11-26 00:30:57,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:30:57,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:57,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:30:57,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:30:57,766 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:30:57,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash -65343176, now seen corresponding path program 1 times [2022-11-26 00:30:57,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:57,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168243238] [2022-11-26 00:30:57,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:57,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:30:58,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:58,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168243238] [2022-11-26 00:30:58,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168243238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:58,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:58,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:30:58,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50606198] [2022-11-26 00:30:58,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:58,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:30:58,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:58,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:30:58,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:30:58,063 INFO L87 Difference]: Start difference. First operand 9901 states and 28866 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:58,656 INFO L93 Difference]: Finished difference Result 15875 states and 45786 transitions. [2022-11-26 00:30:58,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:30:58,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-26 00:30:58,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:58,721 INFO L225 Difference]: With dead ends: 15875 [2022-11-26 00:30:58,721 INFO L226 Difference]: Without dead ends: 15875 [2022-11-26 00:30:58,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:30:58,722 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 237 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:58,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 242 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:30:58,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15875 states. [2022-11-26 00:30:59,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15875 to 14477. [2022-11-26 00:30:59,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14477 states, 14397 states have (on average 2.9793012433145796) internal successors, (42893), 14476 states have internal predecessors, (42893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14477 states to 14477 states and 42893 transitions. [2022-11-26 00:30:59,268 INFO L78 Accepts]: Start accepts. Automaton has 14477 states and 42893 transitions. Word has length 10 [2022-11-26 00:30:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:59,269 INFO L495 AbstractCegarLoop]: Abstraction has 14477 states and 42893 transitions. [2022-11-26 00:30:59,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:30:59,269 INFO L276 IsEmpty]: Start isEmpty. Operand 14477 states and 42893 transitions. [2022-11-26 00:30:59,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:30:59,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:59,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:30:59,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:30:59,273 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:30:59,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:59,274 INFO L85 PathProgramCache]: Analyzing trace with hash -393294746, now seen corresponding path program 1 times [2022-11-26 00:30:59,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:59,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121170271] [2022-11-26 00:30:59,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:59,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:59,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:30:59,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:59,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121170271] [2022-11-26 00:30:59,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121170271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:59,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:59,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:30:59,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942794505] [2022-11-26 00:30:59,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:59,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:30:59,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:59,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:30:59,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:30:59,673 INFO L87 Difference]: Start difference. First operand 14477 states and 42893 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) [2022-11-26 00:31:00,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:00,284 INFO L93 Difference]: Finished difference Result 15433 states and 45657 transitions. [2022-11-26 00:31:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:31:00,285 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 [2022-11-26 00:31:00,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:00,337 INFO L225 Difference]: With dead ends: 15433 [2022-11-26 00:31:00,337 INFO L226 Difference]: Without dead ends: 15433 [2022-11-26 00:31:00,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:31:00,338 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 124 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:00,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 163 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:31:00,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15433 states. [2022-11-26 00:31:00,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15433 to 15433. [2022-11-26 00:31:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15433 states, 15353 states have (on average 2.9738161922751254) internal successors, (45657), 15432 states have internal predecessors, (45657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15433 states to 15433 states and 45657 transitions. [2022-11-26 00:31:00,821 INFO L78 Accepts]: Start accepts. Automaton has 15433 states and 45657 transitions. Word has length 16 [2022-11-26 00:31:00,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:00,821 INFO L495 AbstractCegarLoop]: Abstraction has 15433 states and 45657 transitions. [2022-11-26 00:31:00,821 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) [2022-11-26 00:31:00,821 INFO L276 IsEmpty]: Start isEmpty. Operand 15433 states and 45657 transitions. [2022-11-26 00:31:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:31:00,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:00,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:31:00,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:31:00,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:00,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:00,825 INFO L85 PathProgramCache]: Analyzing trace with hash 257808886, now seen corresponding path program 1 times [2022-11-26 00:31:00,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:00,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467100140] [2022-11-26 00:31:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:00,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:00,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:00,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467100140] [2022-11-26 00:31:00,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467100140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:00,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:00,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:31:00,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218720257] [2022-11-26 00:31:00,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:00,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:31:00,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:00,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:31:00,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:31:00,867 INFO L87 Difference]: Start difference. First operand 15433 states and 45657 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) [2022-11-26 00:31:01,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:01,213 INFO L93 Difference]: Finished difference Result 26427 states and 78419 transitions. [2022-11-26 00:31:01,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:31:01,214 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 [2022-11-26 00:31:01,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:01,419 INFO L225 Difference]: With dead ends: 26427 [2022-11-26 00:31:01,419 INFO L226 Difference]: Without dead ends: 26427 [2022-11-26 00:31:01,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:31:01,421 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 71 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:01,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 105 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:31:01,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26427 states. [2022-11-26 00:31:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26427 to 15706. [2022-11-26 00:31:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15706 states, 15626 states have (on average 2.972993728401382) internal successors, (46456), 15705 states have internal predecessors, (46456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15706 states to 15706 states and 46456 transitions. [2022-11-26 00:31:02,089 INFO L78 Accepts]: Start accepts. Automaton has 15706 states and 46456 transitions. Word has length 17 [2022-11-26 00:31:02,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:02,089 INFO L495 AbstractCegarLoop]: Abstraction has 15706 states and 46456 transitions. [2022-11-26 00:31:02,090 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) [2022-11-26 00:31:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 15706 states and 46456 transitions. [2022-11-26 00:31:02,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:31:02,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:02,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:31:02,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:31:02,093 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash 952658386, now seen corresponding path program 1 times [2022-11-26 00:31:02,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:02,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392257531] [2022-11-26 00:31:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:02,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:02,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:02,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392257531] [2022-11-26 00:31:02,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392257531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:02,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:02,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:31:02,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388543674] [2022-11-26 00:31:02,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:02,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:31:02,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:02,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:31:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:31:02,145 INFO L87 Difference]: Start difference. First operand 15706 states and 46456 transitions. Second operand has 4 states, 4 states have (on average 4.25) 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) [2022-11-26 00:31:02,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:02,414 INFO L93 Difference]: Finished difference Result 18793 states and 54151 transitions. [2022-11-26 00:31:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:31:02,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) 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 [2022-11-26 00:31:02,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:02,484 INFO L225 Difference]: With dead ends: 18793 [2022-11-26 00:31:02,485 INFO L226 Difference]: Without dead ends: 18773 [2022-11-26 00:31:02,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:31:02,486 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 117 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:02,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 192 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:31:02,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18773 states. [2022-11-26 00:31:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18773 to 17814. [2022-11-26 00:31:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17814 states, 17720 states have (on average 2.960665914221219) internal successors, (52463), 17813 states have internal predecessors, (52463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:03,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17814 states to 17814 states and 52463 transitions. [2022-11-26 00:31:03,189 INFO L78 Accepts]: Start accepts. Automaton has 17814 states and 52463 transitions. Word has length 17 [2022-11-26 00:31:03,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:03,190 INFO L495 AbstractCegarLoop]: Abstraction has 17814 states and 52463 transitions. [2022-11-26 00:31:03,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) 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) [2022-11-26 00:31:03,190 INFO L276 IsEmpty]: Start isEmpty. Operand 17814 states and 52463 transitions. [2022-11-26 00:31:03,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:31:03,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:03,192 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] [2022-11-26 00:31:03,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:31:03,193 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:03,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:03,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1090640612, now seen corresponding path program 1 times [2022-11-26 00:31:03,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:03,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106890874] [2022-11-26 00:31:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:03,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:03,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:03,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:03,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106890874] [2022-11-26 00:31:03,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106890874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:03,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:03,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:31:03,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504556836] [2022-11-26 00:31:03,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:03,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:31:03,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:03,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:31:03,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:31:03,675 INFO L87 Difference]: Start difference. First operand 17814 states and 52463 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) [2022-11-26 00:31:04,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:04,725 INFO L93 Difference]: Finished difference Result 19169 states and 56549 transitions. [2022-11-26 00:31:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:31:04,726 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 [2022-11-26 00:31:04,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:04,798 INFO L225 Difference]: With dead ends: 19169 [2022-11-26 00:31:04,798 INFO L226 Difference]: Without dead ends: 19169 [2022-11-26 00:31:04,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:31:04,799 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 279 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:04,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 266 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:31:04,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19169 states. [2022-11-26 00:31:05,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19169 to 18110. [2022-11-26 00:31:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18110 states, 18024 states have (on average 2.965767865068797) internal successors, (53455), 18109 states have internal predecessors, (53455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18110 states to 18110 states and 53455 transitions. [2022-11-26 00:31:05,381 INFO L78 Accepts]: Start accepts. Automaton has 18110 states and 53455 transitions. Word has length 20 [2022-11-26 00:31:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:05,381 INFO L495 AbstractCegarLoop]: Abstraction has 18110 states and 53455 transitions. [2022-11-26 00:31:05,381 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) [2022-11-26 00:31:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 18110 states and 53455 transitions. [2022-11-26 00:31:05,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:31:05,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:05,384 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] [2022-11-26 00:31:05,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:31:05,384 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:05,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:05,385 INFO L85 PathProgramCache]: Analyzing trace with hash -955066547, now seen corresponding path program 1 times [2022-11-26 00:31:05,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:05,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083334033] [2022-11-26 00:31:05,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:05,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:05,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:05,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083334033] [2022-11-26 00:31:05,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083334033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:05,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:05,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:31:05,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355622009] [2022-11-26 00:31:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:05,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:31:05,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:05,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:31:05,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:31:05,734 INFO L87 Difference]: Start difference. First operand 18110 states and 53455 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) [2022-11-26 00:31:06,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:06,754 INFO L93 Difference]: Finished difference Result 24324 states and 72438 transitions. [2022-11-26 00:31:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:31:06,755 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 [2022-11-26 00:31:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:06,829 INFO L225 Difference]: With dead ends: 24324 [2022-11-26 00:31:06,830 INFO L226 Difference]: Without dead ends: 24324 [2022-11-26 00:31:06,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:31:06,831 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 424 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:06,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 331 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:31:06,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24324 states. [2022-11-26 00:31:07,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24324 to 18478. [2022-11-26 00:31:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18478 states, 18392 states have (on average 2.9683014354066986) internal successors, (54593), 18477 states have internal predecessors, (54593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:07,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18478 states to 18478 states and 54593 transitions. [2022-11-26 00:31:07,358 INFO L78 Accepts]: Start accepts. Automaton has 18478 states and 54593 transitions. Word has length 20 [2022-11-26 00:31:07,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:07,358 INFO L495 AbstractCegarLoop]: Abstraction has 18478 states and 54593 transitions. [2022-11-26 00:31:07,359 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) [2022-11-26 00:31:07,359 INFO L276 IsEmpty]: Start isEmpty. Operand 18478 states and 54593 transitions. [2022-11-26 00:31:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:31:07,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:07,362 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] [2022-11-26 00:31:07,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:31:07,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:07,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:07,363 INFO L85 PathProgramCache]: Analyzing trace with hash -995201123, now seen corresponding path program 2 times [2022-11-26 00:31:07,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:07,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984791897] [2022-11-26 00:31:07,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:07,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:07,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:07,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984791897] [2022-11-26 00:31:07,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984791897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:07,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:07,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:31:07,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947373876] [2022-11-26 00:31:07,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:07,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:31:07,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:07,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:31:07,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:31:07,975 INFO L87 Difference]: Start difference. First operand 18478 states and 54593 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) [2022-11-26 00:31:09,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:09,526 INFO L93 Difference]: Finished difference Result 36804 states and 107099 transitions. [2022-11-26 00:31:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:31:09,527 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 [2022-11-26 00:31:09,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:09,669 INFO L225 Difference]: With dead ends: 36804 [2022-11-26 00:31:09,670 INFO L226 Difference]: Without dead ends: 36804 [2022-11-26 00:31:09,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:31:09,671 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 360 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:09,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 654 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:31:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36804 states. [2022-11-26 00:31:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36804 to 18448. [2022-11-26 00:31:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18448 states, 18362 states have (on average 2.9680862651127327) internal successors, (54500), 18447 states have internal predecessors, (54500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:10,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18448 states to 18448 states and 54500 transitions. [2022-11-26 00:31:10,336 INFO L78 Accepts]: Start accepts. Automaton has 18448 states and 54500 transitions. Word has length 20 [2022-11-26 00:31:10,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:10,336 INFO L495 AbstractCegarLoop]: Abstraction has 18448 states and 54500 transitions. [2022-11-26 00:31:10,336 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) [2022-11-26 00:31:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 18448 states and 54500 transitions. [2022-11-26 00:31:10,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:31:10,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:10,339 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] [2022-11-26 00:31:10,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:31:10,340 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:10,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1574798193, now seen corresponding path program 3 times [2022-11-26 00:31:10,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:10,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892899496] [2022-11-26 00:31:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:10,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:10,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:10,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892899496] [2022-11-26 00:31:10,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892899496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:10,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:10,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:31:10,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325960153] [2022-11-26 00:31:10,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:10,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:31:10,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:10,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:31:10,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:31:10,684 INFO L87 Difference]: Start difference. First operand 18448 states and 54500 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) [2022-11-26 00:31:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:12,122 INFO L93 Difference]: Finished difference Result 32203 states and 93035 transitions. [2022-11-26 00:31:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:31:12,123 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 [2022-11-26 00:31:12,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:12,199 INFO L225 Difference]: With dead ends: 32203 [2022-11-26 00:31:12,199 INFO L226 Difference]: Without dead ends: 32203 [2022-11-26 00:31:12,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:31:12,200 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 416 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:12,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 654 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:31:12,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32203 states. [2022-11-26 00:31:12,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32203 to 10815. [2022-11-26 00:31:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10815 states, 10769 states have (on average 2.894883461788467) internal successors, (31175), 10814 states have internal predecessors, (31175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10815 states to 10815 states and 31175 transitions. [2022-11-26 00:31:12,613 INFO L78 Accepts]: Start accepts. Automaton has 10815 states and 31175 transitions. Word has length 20 [2022-11-26 00:31:12,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:12,613 INFO L495 AbstractCegarLoop]: Abstraction has 10815 states and 31175 transitions. [2022-11-26 00:31:12,613 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) [2022-11-26 00:31:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand 10815 states and 31175 transitions. [2022-11-26 00:31:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:31:12,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:12,616 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] [2022-11-26 00:31:12,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:31:12,616 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:12,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:12,617 INFO L85 PathProgramCache]: Analyzing trace with hash 391872662, now seen corresponding path program 1 times [2022-11-26 00:31:12,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:12,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825121089] [2022-11-26 00:31:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:12,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:12,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:12,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825121089] [2022-11-26 00:31:12,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825121089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:12,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:12,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:31:12,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980004754] [2022-11-26 00:31:12,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:12,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:31:12,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:12,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:31:12,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:31:12,662 INFO L87 Difference]: Start difference. First operand 10815 states and 31175 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) [2022-11-26 00:31:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:12,833 INFO L93 Difference]: Finished difference Result 10967 states and 31604 transitions. [2022-11-26 00:31:12,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:31:12,833 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 [2022-11-26 00:31:12,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:12,868 INFO L225 Difference]: With dead ends: 10967 [2022-11-26 00:31:12,869 INFO L226 Difference]: Without dead ends: 10967 [2022-11-26 00:31:12,869 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 [2022-11-26 00:31:12,870 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 37 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:12,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 80 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:31:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2022-11-26 00:31:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 10967. [2022-11-26 00:31:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10967 states, 10925 states have (on average 2.8928146453089245) internal successors, (31604), 10966 states have internal predecessors, (31604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:13,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 31604 transitions. [2022-11-26 00:31:13,082 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 31604 transitions. Word has length 22 [2022-11-26 00:31:13,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:13,082 INFO L495 AbstractCegarLoop]: Abstraction has 10967 states and 31604 transitions. [2022-11-26 00:31:13,082 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) [2022-11-26 00:31:13,082 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 31604 transitions. [2022-11-26 00:31:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-26 00:31:13,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:13,086 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] [2022-11-26 00:31:13,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:31:13,087 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash 565329739, now seen corresponding path program 1 times [2022-11-26 00:31:13,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:13,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223181594] [2022-11-26 00:31:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:13,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:13,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:13,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:13,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223181594] [2022-11-26 00:31:13,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223181594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:13,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:13,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:31:13,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407763796] [2022-11-26 00:31:13,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:13,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:31:13,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:13,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:31:13,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:31:13,135 INFO L87 Difference]: Start difference. First operand 10967 states and 31604 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:13,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:13,273 INFO L93 Difference]: Finished difference Result 11126 states and 32018 transitions. [2022-11-26 00:31:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:31:13,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-26 00:31:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:13,322 INFO L225 Difference]: With dead ends: 11126 [2022-11-26 00:31:13,323 INFO L226 Difference]: Without dead ends: 11126 [2022-11-26 00:31:13,323 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 [2022-11-26 00:31:13,324 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 40 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:13,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 100 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:31:13,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11126 states. [2022-11-26 00:31:13,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11126 to 11126. [2022-11-26 00:31:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11126 states, 11088 states have (on average 2.8876262626262625) internal successors, (32018), 11125 states have internal predecessors, (32018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11126 states to 11126 states and 32018 transitions. [2022-11-26 00:31:13,704 INFO L78 Accepts]: Start accepts. Automaton has 11126 states and 32018 transitions. Word has length 25 [2022-11-26 00:31:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:13,705 INFO L495 AbstractCegarLoop]: Abstraction has 11126 states and 32018 transitions. [2022-11-26 00:31:13,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:13,705 INFO L276 IsEmpty]: Start isEmpty. Operand 11126 states and 32018 transitions. [2022-11-26 00:31:13,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:31:13,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:13,711 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] [2022-11-26 00:31:13,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:31:13,711 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:13,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:13,712 INFO L85 PathProgramCache]: Analyzing trace with hash -57650721, now seen corresponding path program 1 times [2022-11-26 00:31:13,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:13,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138727554] [2022-11-26 00:31:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:13,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:13,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:13,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:13,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138727554] [2022-11-26 00:31:13,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138727554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:13,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:13,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:31:13,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975523397] [2022-11-26 00:31:13,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:13,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:31:13,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:13,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:31:13,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:31:13,824 INFO L87 Difference]: Start difference. First operand 11126 states and 32018 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:13,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:13,898 INFO L93 Difference]: Finished difference Result 1690 states and 4214 transitions. [2022-11-26 00:31:13,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:31:13,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-11-26 00:31:13,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:13,904 INFO L225 Difference]: With dead ends: 1690 [2022-11-26 00:31:13,904 INFO L226 Difference]: Without dead ends: 1676 [2022-11-26 00:31:13,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:31:13,907 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:13,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 50 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:31:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-11-26 00:31:13,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1468. [2022-11-26 00:31:13,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1462 states have (on average 2.4685362517099865) internal successors, (3609), 1467 states have internal predecessors, (3609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 3609 transitions. [2022-11-26 00:31:13,942 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 3609 transitions. Word has length 29 [2022-11-26 00:31:13,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:13,943 INFO L495 AbstractCegarLoop]: Abstraction has 1468 states and 3609 transitions. [2022-11-26 00:31:13,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 3609 transitions. [2022-11-26 00:31:13,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-26 00:31:13,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:13,949 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] [2022-11-26 00:31:13,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:31:13,949 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:13,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:13,950 INFO L85 PathProgramCache]: Analyzing trace with hash -28451585, now seen corresponding path program 1 times [2022-11-26 00:31:13,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:13,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410747086] [2022-11-26 00:31:13,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:13,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:14,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:14,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410747086] [2022-11-26 00:31:14,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410747086] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:31:14,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239633574] [2022-11-26 00:31:14,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:14,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:14,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:31:14,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:31:14,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:31:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:14,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:31:14,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:31:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:14,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:31:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:14,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239633574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:31:14,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1694822281] [2022-11-26 00:31:14,418 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) [2022-11-26 00:31:14,424 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:31:14,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-26 00:31:14,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344879322] [2022-11-26 00:31:14,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:31:14,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:31:14,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:14,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:31:14,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:31:14,428 INFO L87 Difference]: Start difference. First operand 1468 states and 3609 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:14,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:14,694 INFO L93 Difference]: Finished difference Result 3826 states and 9166 transitions. [2022-11-26 00:31:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:31:14,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 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 40 [2022-11-26 00:31:14,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:14,728 INFO L225 Difference]: With dead ends: 3826 [2022-11-26 00:31:14,728 INFO L226 Difference]: Without dead ends: 3805 [2022-11-26 00:31:14,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:31:14,729 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 253 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:14,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 159 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:31:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2022-11-26 00:31:14,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3777. [2022-11-26 00:31:14,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3777 states, 3769 states have (on average 2.4152295038471743) internal successors, (9103), 3776 states have internal predecessors, (9103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 9103 transitions. [2022-11-26 00:31:14,872 INFO L78 Accepts]: Start accepts. Automaton has 3777 states and 9103 transitions. Word has length 40 [2022-11-26 00:31:14,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:14,873 INFO L495 AbstractCegarLoop]: Abstraction has 3777 states and 9103 transitions. [2022-11-26 00:31:14,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:14,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3777 states and 9103 transitions. [2022-11-26 00:31:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-26 00:31:14,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:14,877 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] [2022-11-26 00:31:14,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:31:15,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-26 00:31:15,096 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:15,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:15,097 INFO L85 PathProgramCache]: Analyzing trace with hash 934581289, now seen corresponding path program 1 times [2022-11-26 00:31:15,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:15,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815036602] [2022-11-26 00:31:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:15,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:15,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:15,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815036602] [2022-11-26 00:31:15,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815036602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:15,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:15,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:31:15,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379281015] [2022-11-26 00:31:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:15,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:31:15,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:15,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:31:15,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:31:15,154 INFO L87 Difference]: Start difference. First operand 3777 states and 9103 transitions. Second operand has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:15,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:15,261 INFO L93 Difference]: Finished difference Result 3749 states and 9029 transitions. [2022-11-26 00:31:15,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:31:15,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-11-26 00:31:15,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:15,272 INFO L225 Difference]: With dead ends: 3749 [2022-11-26 00:31:15,272 INFO L226 Difference]: Without dead ends: 3749 [2022-11-26 00:31:15,273 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 [2022-11-26 00:31:15,273 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 62 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 [2022-11-26 00:31:15,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 62 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:31:15,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2022-11-26 00:31:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3749. [2022-11-26 00:31:15,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 3744 states have (on average 2.4115918803418803) internal successors, (9029), 3748 states have internal predecessors, (9029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 9029 transitions. [2022-11-26 00:31:15,368 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 9029 transitions. Word has length 41 [2022-11-26 00:31:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:15,368 INFO L495 AbstractCegarLoop]: Abstraction has 3749 states and 9029 transitions. [2022-11-26 00:31:15,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 9029 transitions. [2022-11-26 00:31:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-26 00:31:15,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:15,374 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, 1, 1] [2022-11-26 00:31:15,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:31:15,375 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:15,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:15,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1886498719, now seen corresponding path program 1 times [2022-11-26 00:31:15,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:15,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544319835] [2022-11-26 00:31:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:15,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:15,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:15,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544319835] [2022-11-26 00:31:15,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544319835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:15,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:15,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:31:15,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261399492] [2022-11-26 00:31:15,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:15,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:31:15,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:15,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:31:15,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:31:15,770 INFO L87 Difference]: Start difference. First operand 3749 states and 9029 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:16,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:16,166 INFO L93 Difference]: Finished difference Result 3721 states and 8955 transitions. [2022-11-26 00:31:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:31:16,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-11-26 00:31:16,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:16,177 INFO L225 Difference]: With dead ends: 3721 [2022-11-26 00:31:16,177 INFO L226 Difference]: Without dead ends: 3673 [2022-11-26 00:31:16,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:31:16,178 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 20 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:16,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 53 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:31:16,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3673 states. [2022-11-26 00:31:16,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3673 to 3673. [2022-11-26 00:31:16,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3673 states, 3671 states have (on average 2.4126940888041406) internal successors, (8857), 3672 states have internal predecessors, (8857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3673 states to 3673 states and 8857 transitions. [2022-11-26 00:31:16,244 INFO L78 Accepts]: Start accepts. Automaton has 3673 states and 8857 transitions. Word has length 50 [2022-11-26 00:31:16,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:16,244 INFO L495 AbstractCegarLoop]: Abstraction has 3673 states and 8857 transitions. [2022-11-26 00:31:16,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 8857 transitions. [2022-11-26 00:31:16,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-26 00:31:16,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:16,252 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-26 00:31:16,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:31:16,252 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:16,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:16,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1594450569, now seen corresponding path program 1 times [2022-11-26 00:31:16,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:16,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476080074] [2022-11-26 00:31:16,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:16,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:31:16,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:16,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476080074] [2022-11-26 00:31:16,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476080074] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:31:16,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931499761] [2022-11-26 00:31:16,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:16,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:16,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:31:16,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:31:16,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:31:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:16,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:31:16,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:31:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:31:16,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:31:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:31:16,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931499761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:31:16,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1482413005] [2022-11-26 00:31:16,715 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) [2022-11-26 00:31:16,716 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:31:16,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-26 00:31:16,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962610274] [2022-11-26 00:31:16,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:31:16,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:31:16,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:16,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:31:16,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:31:16,718 INFO L87 Difference]: Start difference. First operand 3673 states and 8857 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:17,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:17,045 INFO L93 Difference]: Finished difference Result 6731 states and 16021 transitions. [2022-11-26 00:31:17,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:31:17,045 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 64 [2022-11-26 00:31:17,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:17,061 INFO L225 Difference]: With dead ends: 6731 [2022-11-26 00:31:17,061 INFO L226 Difference]: Without dead ends: 6731 [2022-11-26 00:31:17,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:31:17,062 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 198 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:17,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 237 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:31:17,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6731 states. [2022-11-26 00:31:17,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6731 to 5724. [2022-11-26 00:31:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 5722 states have (on average 2.4061516952114643) internal successors, (13768), 5723 states have internal predecessors, (13768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 13768 transitions. [2022-11-26 00:31:17,165 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 13768 transitions. Word has length 64 [2022-11-26 00:31:17,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:17,166 INFO L495 AbstractCegarLoop]: Abstraction has 5724 states and 13768 transitions. [2022-11-26 00:31:17,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:17,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 13768 transitions. [2022-11-26 00:31:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-26 00:31:17,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:17,175 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-26 00:31:17,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:31:17,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:17,380 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:17,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:17,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1486002078, now seen corresponding path program 1 times [2022-11-26 00:31:17,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:17,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163367899] [2022-11-26 00:31:17,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:17,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:17,600 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:17,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:17,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163367899] [2022-11-26 00:31:17,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163367899] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:31:17,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518222352] [2022-11-26 00:31:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:17,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:17,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:31:17,603 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:31:17,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:31:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:17,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:31:17,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:31:17,936 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:31:17,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:31:17,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518222352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:17,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:31:17,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-11-26 00:31:17,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83171787] [2022-11-26 00:31:17,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:17,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:31:17,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:17,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:31:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:31:17,942 INFO L87 Difference]: Start difference. First operand 5724 states and 13768 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:18,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:18,209 INFO L93 Difference]: Finished difference Result 8025 states and 19060 transitions. [2022-11-26 00:31:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:31:18,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 87 [2022-11-26 00:31:18,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:18,225 INFO L225 Difference]: With dead ends: 8025 [2022-11-26 00:31:18,225 INFO L226 Difference]: Without dead ends: 8025 [2022-11-26 00:31:18,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:31:18,226 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 95 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:18,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 186 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:31:18,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8025 states. [2022-11-26 00:31:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8025 to 6438. [2022-11-26 00:31:18,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6438 states, 6436 states have (on average 2.4431323803604723) internal successors, (15724), 6437 states have internal predecessors, (15724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6438 states to 6438 states and 15724 transitions. [2022-11-26 00:31:18,361 INFO L78 Accepts]: Start accepts. Automaton has 6438 states and 15724 transitions. Word has length 87 [2022-11-26 00:31:18,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:18,362 INFO L495 AbstractCegarLoop]: Abstraction has 6438 states and 15724 transitions. [2022-11-26 00:31:18,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:18,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6438 states and 15724 transitions. [2022-11-26 00:31:18,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-26 00:31:18,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:18,374 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-26 00:31:18,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:31:18,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:18,581 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-26 00:31:18,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:18,581 INFO L85 PathProgramCache]: Analyzing trace with hash 716791885, now seen corresponding path program 2 times [2022-11-26 00:31:18,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:18,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026390924] [2022-11-26 00:31:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:18,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:18,843 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:31:18,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:18,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026390924] [2022-11-26 00:31:18,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026390924] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:31:18,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114450157] [2022-11-26 00:31:18,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:31:18,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:18,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:31:18,846 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:31:18,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:31:19,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:31:19,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:31:19,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-26 00:31:19,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:31:19,202 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 [2022-11-26 00:31:19,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:31:19,229 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 [2022-11-26 00:31:19,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:31:19,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:31:19,259 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:31:19,259 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 [2022-11-26 00:31:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-26 00:31:19,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:31:19,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114450157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:19,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:31:19,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-11-26 00:31:19,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854141481] [2022-11-26 00:31:19,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:19,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:31:19,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:19,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:31:19,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:31:19,286 INFO L87 Difference]: Start difference. First operand 6438 states and 15724 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:19,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:19,544 INFO L93 Difference]: Finished difference Result 6404 states and 15652 transitions. [2022-11-26 00:31:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:31:19,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 94 [2022-11-26 00:31:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:19,546 INFO L225 Difference]: With dead ends: 6404 [2022-11-26 00:31:19,546 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:31:19,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:31:19,547 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 96 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:19,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 92 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:31:19,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:31:19,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:31:19,549 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) [2022-11-26 00:31:19,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:31:19,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2022-11-26 00:31:19,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:19,551 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:31:19,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:31:19,553 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:31:19,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:31:19,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2022-11-26 00:31:19,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2022-11-26 00:31:19,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 28 remaining) [2022-11-26 00:31:19,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 28 remaining) [2022-11-26 00:31:19,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2022-11-26 00:31:19,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2022-11-26 00:31:19,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2022-11-26 00:31:19,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2022-11-26 00:31:19,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2022-11-26 00:31:19,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2022-11-26 00:31:19,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2022-11-26 00:31:19,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2022-11-26 00:31:19,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2022-11-26 00:31:19,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2022-11-26 00:31:19,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2022-11-26 00:31:19,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2022-11-26 00:31:19,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2022-11-26 00:31:19,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2022-11-26 00:31:19,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2022-11-26 00:31:19,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2022-11-26 00:31:19,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2022-11-26 00:31:19,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2022-11-26 00:31:19,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2022-11-26 00:31:19,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2022-11-26 00:31:19,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2022-11-26 00:31:19,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2022-11-26 00:31:19,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2022-11-26 00:31:19,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2022-11-26 00:31:19,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:31:19,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:19,772 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:31:19,777 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:31:19,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:31:19,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:31:19 BasicIcfg [2022-11-26 00:31:19,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:31:19,780 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:31:19,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:31:19,781 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:31:19,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:30:46" (3/4) ... [2022-11-26 00:31:19,785 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:31:19,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-11-26 00:31:19,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-11-26 00:31:19,796 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-26 00:31:19,797 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:31:19,797 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:31:19,797 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:31:19,832 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:31:19,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:31:19,833 INFO L158 Benchmark]: Toolchain (without parser) took 35018.35ms. Allocated memory was 172.0MB in the beginning and 9.1GB in the end (delta: 8.9GB). Free memory was 138.1MB in the beginning and 8.2GB in the end (delta: -8.0GB). Peak memory consumption was 853.7MB. Max. memory is 16.1GB. [2022-11-26 00:31:19,833 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory was 69.8MB in the beginning and 69.6MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:31:19,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.54ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 107.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:31:19,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.37ms. Allocated memory is still 172.0MB. Free memory was 107.9MB in the beginning and 104.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:31:19,834 INFO L158 Benchmark]: Boogie Preprocessor took 36.11ms. Allocated memory is still 172.0MB. Free memory was 104.4MB in the beginning and 102.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:31:19,835 INFO L158 Benchmark]: RCFGBuilder took 824.59ms. Allocated memory is still 172.0MB. Free memory was 102.4MB in the beginning and 80.1MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 00:31:19,835 INFO L158 Benchmark]: TraceAbstraction took 33229.55ms. Allocated memory was 172.0MB in the beginning and 9.1GB in the end (delta: 8.9GB). Free memory was 79.3MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 790.8MB. Max. memory is 16.1GB. [2022-11-26 00:31:19,835 INFO L158 Benchmark]: Witness Printer took 52.04ms. Allocated memory is still 9.1GB. Free memory was 8.2GB in the beginning and 8.2GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:31:19,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory was 69.8MB in the beginning and 69.6MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.54ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 107.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.37ms. Allocated memory is still 172.0MB. Free memory was 107.9MB in the beginning and 104.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.11ms. Allocated memory is still 172.0MB. Free memory was 104.4MB in the beginning and 102.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 824.59ms. Allocated memory is still 172.0MB. Free memory was 102.4MB in the beginning and 80.1MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 33229.55ms. Allocated memory was 172.0MB in the beginning and 9.1GB in the end (delta: 8.9GB). Free memory was 79.3MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 790.8MB. Max. memory is 16.1GB. * Witness Printer took 52.04ms. Allocated memory is still 9.1GB. Free memory was 8.2GB in the beginning and 8.2GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 236 PlacesBefore, 89 PlacesAfterwards, 239 TransitionsBefore, 89 TransitionsAfterwards, 20432 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 110 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 3 ChoiceCompositions, 174 TotalNumberOfCompositions, 70632 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34991, independent: 34003, independent conditional: 0, independent unconditional: 34003, dependent: 988, dependent conditional: 0, dependent unconditional: 988, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14942, independent: 14723, independent conditional: 0, independent unconditional: 14723, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14942, independent: 14597, independent conditional: 0, independent unconditional: 14597, dependent: 345, dependent conditional: 0, dependent unconditional: 345, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 345, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 738, independent: 269, independent conditional: 0, independent unconditional: 269, dependent: 470, dependent conditional: 0, dependent unconditional: 470, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34991, independent: 19280, independent conditional: 0, independent unconditional: 19280, dependent: 769, dependent conditional: 0, dependent unconditional: 769, unknown: 14942, unknown conditional: 0, unknown unconditional: 14942] , Statistics on independence cache: Total cache size (in pairs): 2443, Positive cache size: 2323, Positive conditional cache size: 0, Positive unconditional cache size: 2323, Negative cache size: 120, Negative conditional cache size: 0, Negative unconditional cache size: 120, 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: 1023]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1024]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 960]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 952]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 997]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 967]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 944]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 944]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1008]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 952]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 948]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 948]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 952]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 982]: 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, 396 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 33.0s, OverallIterations: 21, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3025 SdHoareTripleChecker+Valid, 7.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3025 mSDsluCounter, 3937 SdHoareTripleChecker+Invalid, 6.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2376 mSDsCounter, 320 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7274 IncrementalHoareTripleChecker+Invalid, 7594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 320 mSolverCounterUnsat, 1561 mSDtfsCounter, 7274 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 503 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18478occurred in iteration=10, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.5s AutomataMinimizationTime, 21 MinimizatonAttempts, 74476 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 906 NumberOfCodeBlocks, 829 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 983 ConstructedInterpolants, 0 QuantifiedInterpolants, 3503 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1398 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 27 InterpolantComputations, 19 PerfectInterpolantSequences, 293/457 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:31:19,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d8836-9a17-451e-bcad-44f5c38011ce/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE