./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba --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 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 --- 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-b5237d8 [2022-11-22 02:22:46,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:22:46,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:22:46,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:22:46,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:22:46,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:22:46,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:22:46,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:22:46,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:22:46,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:22:46,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:22:46,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:22:46,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:22:46,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:22:46,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:22:46,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:22:46,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:22:46,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:22:46,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:22:46,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:22:46,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:22:46,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:22:46,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:22:46,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:22:46,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:22:46,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:22:46,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:22:46,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:22:46,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:22:46,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:22:46,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:22:46,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:22:46,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:22:46,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:22:46,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:22:46,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:22:46,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:22:46,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:22:46,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:22:46,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:22:46,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:22:46,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 02:22:46,866 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:22:46,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:22:46,867 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:22:46,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:22:46,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:22:46,869 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:22:46,869 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:22:46,869 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:22:46,870 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:22:46,870 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:22:46,870 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:22:46,871 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:22:46,871 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:22:46,871 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:22:46,872 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:22:46,872 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:22:46,872 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:22:46,873 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:22:46,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:22:46,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:22:46,874 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:22:46,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:22:46,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:22:46,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:22:46,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:22:46,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:22:46,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:22:46,877 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 02:22:46,877 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:22:46,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:22:46,877 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:22:46,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:22:46,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:22:46,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:22:46,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:22:46,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:22:46,879 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:22:46,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:22:46,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:22:46,880 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:22:46,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:22:46,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:22:46,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:22:46,881 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_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 [2022-11-22 02:22:47,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:22:47,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:22:47,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:22:47,289 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:22:47,289 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:22:47,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread/stack_longer-2.i [2022-11-22 02:22:50,659 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:22:50,957 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:22:50,958 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/sv-benchmarks/c/pthread/stack_longer-2.i [2022-11-22 02:22:50,976 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/data/9148ab03d/e640dd5fa4a849d488913049dcbe4c36/FLAGad29441af [2022-11-22 02:22:50,994 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/data/9148ab03d/e640dd5fa4a849d488913049dcbe4c36 [2022-11-22 02:22:50,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:22:50,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:22:51,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:51,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:22:51,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:22:51,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:50" (1/1) ... [2022-11-22 02:22:51,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304b88fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51, skipping insertion in model container [2022-11-22 02:22:51,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:50" (1/1) ... [2022-11-22 02:22:51,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:22:51,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:22:51,653 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_28bdf35b-397d-4e96-842b-af736ac3235b/sv-benchmarks/c/pthread/stack_longer-2.i[41529,41542] [2022-11-22 02:22:51,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:51,723 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:22:51,791 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_28bdf35b-397d-4e96-842b-af736ac3235b/sv-benchmarks/c/pthread/stack_longer-2.i[41529,41542] [2022-11-22 02:22:51,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:51,912 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:22:51,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51 WrapperNode [2022-11-22 02:22:51,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:51,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:22:51,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:22:51,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:22:51,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:51,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,019 INFO L138 Inliner]: procedures = 277, calls = 38, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 192 [2022-11-22 02:22:52,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:22:52,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:22:52,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:22:52,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:22:52,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,098 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:22:52,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:22:52,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:22:52,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:22:52,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (1/1) ... [2022-11-22 02:22:52,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:22:52,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:22:52,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:22:52,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:22:52,233 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-22 02:22:52,233 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-22 02:22:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-22 02:22:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-22 02:22:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:22:52,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:22:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:22:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:22:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:22:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:22:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:22:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:22:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:22:52,240 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:22:52,410 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:22:52,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:22:53,003 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:22:53,016 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:22:53,017 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:22:53,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:53 BoogieIcfgContainer [2022-11-22 02:22:53,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:22:53,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:22:53,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:22:53,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:22:53,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:22:50" (1/3) ... [2022-11-22 02:22:53,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52423e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:22:53, skipping insertion in model container [2022-11-22 02:22:53,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:51" (2/3) ... [2022-11-22 02:22:53,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52423e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:22:53, skipping insertion in model container [2022-11-22 02:22:53,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:53" (3/3) ... [2022-11-22 02:22:53,033 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2022-11-22 02:22:53,049 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:22:53,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:22:53,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-22 02:22:53,095 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:22:53,350 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 02:22:53,409 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:22:53,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 225 transitions, 466 flow [2022-11-22 02:22:53,449 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 225 transitions, 466 flow [2022-11-22 02:22:53,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 225 transitions, 466 flow [2022-11-22 02:22:53,634 INFO L130 PetriNetUnfolder]: 10/223 cut-off events. [2022-11-22 02:22:53,634 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 02:22:53,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 223 events. 10/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 540 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-11-22 02:22:53,660 INFO L119 LiptonReduction]: Number of co-enabled transitions 17640 [2022-11-22 02:23:00,262 INFO L134 LiptonReduction]: Checked pairs total: 59500 [2022-11-22 02:23:00,263 INFO L136 LiptonReduction]: Total number of compositions: 158 [2022-11-22 02:23:00,278 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 188 flow [2022-11-22 02:23:00,635 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7414 states, 7323 states have (on average 3.0098320360507986) internal successors, (22041), 7413 states have internal predecessors, (22041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:00,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:23:00,668 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;@4c7f8fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:23:00,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-22 02:23:00,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 7414 states, 7323 states have (on average 3.0098320360507986) internal successors, (22041), 7413 states have internal predecessors, (22041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:00,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:23:00,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:00,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:23:00,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:00,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:00,709 INFO L85 PathProgramCache]: Analyzing trace with hash 805393794, now seen corresponding path program 1 times [2022-11-22 02:23:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:00,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219210183] [2022-11-22 02:23:00,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:00,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:01,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:01,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219210183] [2022-11-22 02:23:01,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219210183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:01,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:01,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:23:01,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640745187] [2022-11-22 02:23:01,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:01,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:23:01,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:01,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:23:01,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:23:01,100 INFO L87 Difference]: Start difference. First operand has 7414 states, 7323 states have (on average 3.0098320360507986) internal successors, (22041), 7413 states have internal predecessors, (22041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:01,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:01,350 INFO L93 Difference]: Finished difference Result 7414 states and 21775 transitions. [2022-11-22 02:23:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:23:01,354 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 [2022-11-22 02:23:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:01,435 INFO L225 Difference]: With dead ends: 7414 [2022-11-22 02:23:01,435 INFO L226 Difference]: Without dead ends: 7413 [2022-11-22 02:23:01,437 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 [2022-11-22 02:23:01,440 INFO L413 NwaCegarLoop]: 41 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, 41 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:01,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7413 states. [2022-11-22 02:23:01,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7413 to 7413. [2022-11-22 02:23:01,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7413 states, 7323 states have (on average 2.9732350129728253) internal successors, (21773), 7412 states have internal predecessors, (21773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 21773 transitions. [2022-11-22 02:23:01,995 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 21773 transitions. Word has length 5 [2022-11-22 02:23:01,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:01,996 INFO L495 AbstractCegarLoop]: Abstraction has 7413 states and 21773 transitions. [2022-11-22 02:23:01,997 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) [2022-11-22 02:23:01,997 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 21773 transitions. [2022-11-22 02:23:01,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:23:01,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:01,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:23:01,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:23:01,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:02,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:02,000 INFO L85 PathProgramCache]: Analyzing trace with hash -802594706, now seen corresponding path program 1 times [2022-11-22 02:23:02,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:02,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242300735] [2022-11-22 02:23:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:02,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:02,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:02,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242300735] [2022-11-22 02:23:02,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242300735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:02,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:02,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:23:02,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207140168] [2022-11-22 02:23:02,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:02,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:02,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:02,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:02,120 INFO L87 Difference]: Start difference. First operand 7413 states and 21773 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:02,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:02,417 INFO L93 Difference]: Finished difference Result 9380 states and 26060 transitions. [2022-11-22 02:23:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:02,418 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 [2022-11-22 02:23:02,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:02,509 INFO L225 Difference]: With dead ends: 9380 [2022-11-22 02:23:02,510 INFO L226 Difference]: Without dead ends: 9380 [2022-11-22 02:23:02,510 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 [2022-11-22 02:23:02,511 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 63 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:02,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 69 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2022-11-22 02:23:03,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 7547. [2022-11-22 02:23:03,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7547 states, 7481 states have (on average 2.8064429889052267) internal successors, (20995), 7546 states have internal predecessors, (20995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:03,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7547 states to 7547 states and 20995 transitions. [2022-11-22 02:23:03,086 INFO L78 Accepts]: Start accepts. Automaton has 7547 states and 20995 transitions. Word has length 6 [2022-11-22 02:23:03,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:03,087 INFO L495 AbstractCegarLoop]: Abstraction has 7547 states and 20995 transitions. [2022-11-22 02:23:03,090 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) [2022-11-22 02:23:03,090 INFO L276 IsEmpty]: Start isEmpty. Operand 7547 states and 20995 transitions. [2022-11-22 02:23:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:23:03,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:03,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:03,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:23:03,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:03,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:03,097 INFO L85 PathProgramCache]: Analyzing trace with hash 479642816, now seen corresponding path program 1 times [2022-11-22 02:23:03,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:03,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991492394] [2022-11-22 02:23:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:03,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:03,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:03,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991492394] [2022-11-22 02:23:03,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991492394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:03,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:03,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:03,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663865823] [2022-11-22 02:23:03,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:03,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:23:03,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:03,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:23:03,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:23:03,756 INFO L87 Difference]: Start difference. First operand 7547 states and 20995 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:04,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:04,665 INFO L93 Difference]: Finished difference Result 12155 states and 33408 transitions. [2022-11-22 02:23:04,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:23:04,666 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 [2022-11-22 02:23:04,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:04,752 INFO L225 Difference]: With dead ends: 12155 [2022-11-22 02:23:04,752 INFO L226 Difference]: Without dead ends: 12155 [2022-11-22 02:23:04,754 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 [2022-11-22 02:23:04,758 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 226 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:04,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 275 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:23:04,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12155 states. [2022-11-22 02:23:05,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12155 to 11022. [2022-11-22 02:23:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11022 states, 10956 states have (on average 2.8464768163563345) internal successors, (31186), 11021 states have internal predecessors, (31186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:05,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11022 states to 11022 states and 31186 transitions. [2022-11-22 02:23:05,295 INFO L78 Accepts]: Start accepts. Automaton has 11022 states and 31186 transitions. Word has length 10 [2022-11-22 02:23:05,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:05,298 INFO L495 AbstractCegarLoop]: Abstraction has 11022 states and 31186 transitions. [2022-11-22 02:23:05,298 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) [2022-11-22 02:23:05,298 INFO L276 IsEmpty]: Start isEmpty. Operand 11022 states and 31186 transitions. [2022-11-22 02:23:05,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 02:23:05,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:05,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:05,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:23:05,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:05,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:05,309 INFO L85 PathProgramCache]: Analyzing trace with hash -843348750, now seen corresponding path program 1 times [2022-11-22 02:23:05,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:05,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888027546] [2022-11-22 02:23:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:05,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:05,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:05,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888027546] [2022-11-22 02:23:05,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888027546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:05,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:05,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:05,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535520120] [2022-11-22 02:23:05,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:05,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:23:05,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:05,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:23:05,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:23:05,783 INFO L87 Difference]: Start difference. First operand 11022 states and 31186 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:06,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:06,374 INFO L93 Difference]: Finished difference Result 12021 states and 34033 transitions. [2022-11-22 02:23:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:23:06,375 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 [2022-11-22 02:23:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:06,426 INFO L225 Difference]: With dead ends: 12021 [2022-11-22 02:23:06,427 INFO L226 Difference]: Without dead ends: 12021 [2022-11-22 02:23:06,427 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 [2022-11-22 02:23:06,431 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 128 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:06,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 149 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:23:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12021 states. [2022-11-22 02:23:06,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12021 to 12021. [2022-11-22 02:23:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12021 states, 11955 states have (on average 2.846758678377248) internal successors, (34033), 12020 states have internal predecessors, (34033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:06,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12021 states to 12021 states and 34033 transitions. [2022-11-22 02:23:06,928 INFO L78 Accepts]: Start accepts. Automaton has 12021 states and 34033 transitions. Word has length 16 [2022-11-22 02:23:06,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:06,929 INFO L495 AbstractCegarLoop]: Abstraction has 12021 states and 34033 transitions. [2022-11-22 02:23:06,929 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) [2022-11-22 02:23:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand 12021 states and 34033 transitions. [2022-11-22 02:23:06,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 02:23:06,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:06,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:06,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:23:06,934 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:06,935 INFO L85 PathProgramCache]: Analyzing trace with hash -250501947, now seen corresponding path program 1 times [2022-11-22 02:23:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:06,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485403365] [2022-11-22 02:23:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:07,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:07,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485403365] [2022-11-22 02:23:07,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485403365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:07,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:07,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:23:07,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453927190] [2022-11-22 02:23:07,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:07,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:07,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:07,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:07,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:07,021 INFO L87 Difference]: Start difference. First operand 12021 states and 34033 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:07,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:07,295 INFO L93 Difference]: Finished difference Result 20425 states and 58441 transitions. [2022-11-22 02:23:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:07,296 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 [2022-11-22 02:23:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:07,408 INFO L225 Difference]: With dead ends: 20425 [2022-11-22 02:23:07,408 INFO L226 Difference]: Without dead ends: 20425 [2022-11-22 02:23:07,408 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 [2022-11-22 02:23:07,409 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 67 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:07,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 101 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:07,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20425 states. [2022-11-22 02:23:08,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20425 to 12226. [2022-11-22 02:23:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12226 states, 12160 states have (on average 2.8479440789473682) internal successors, (34631), 12225 states have internal predecessors, (34631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12226 states to 12226 states and 34631 transitions. [2022-11-22 02:23:08,091 INFO L78 Accepts]: Start accepts. Automaton has 12226 states and 34631 transitions. Word has length 17 [2022-11-22 02:23:08,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:08,092 INFO L495 AbstractCegarLoop]: Abstraction has 12226 states and 34631 transitions. [2022-11-22 02:23:08,093 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) [2022-11-22 02:23:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 12226 states and 34631 transitions. [2022-11-22 02:23:08,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:23:08,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:08,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:08,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:23:08,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:08,099 INFO L85 PathProgramCache]: Analyzing trace with hash -426233733, now seen corresponding path program 1 times [2022-11-22 02:23:08,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:08,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761402154] [2022-11-22 02:23:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:08,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:08,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:08,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:08,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761402154] [2022-11-22 02:23:08,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761402154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:08,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:08,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:23:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996747990] [2022-11-22 02:23:08,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:08,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:08,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:08,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:08,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:08,162 INFO L87 Difference]: Start difference. First operand 12226 states and 34631 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:08,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:08,494 INFO L93 Difference]: Finished difference Result 15312 states and 43011 transitions. [2022-11-22 02:23:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:08,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-22 02:23:08,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:08,580 INFO L225 Difference]: With dead ends: 15312 [2022-11-22 02:23:08,581 INFO L226 Difference]: Without dead ends: 15298 [2022-11-22 02:23:08,581 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 [2022-11-22 02:23:08,582 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 43 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:08,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 81 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15298 states. [2022-11-22 02:23:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15298 to 14813. [2022-11-22 02:23:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14813 states, 14747 states have (on average 2.8580728283718724) internal successors, (42148), 14812 states have internal predecessors, (42148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14813 states to 14813 states and 42148 transitions. [2022-11-22 02:23:09,203 INFO L78 Accepts]: Start accepts. Automaton has 14813 states and 42148 transitions. Word has length 18 [2022-11-22 02:23:09,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:09,205 INFO L495 AbstractCegarLoop]: Abstraction has 14813 states and 42148 transitions. [2022-11-22 02:23:09,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:09,205 INFO L276 IsEmpty]: Start isEmpty. Operand 14813 states and 42148 transitions. [2022-11-22 02:23:09,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 02:23:09,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:09,209 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] [2022-11-22 02:23:09,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:23:09,210 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:09,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:09,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1531985667, now seen corresponding path program 1 times [2022-11-22 02:23:09,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:09,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998587598] [2022-11-22 02:23:09,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:09,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:10,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:10,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998587598] [2022-11-22 02:23:10,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998587598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:10,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:10,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:23:10,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052225099] [2022-11-22 02:23:10,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:10,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:23:10,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:10,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:23:10,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:23:10,013 INFO L87 Difference]: Start difference. First operand 14813 states and 42148 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:11,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:11,078 INFO L93 Difference]: Finished difference Result 20021 states and 57546 transitions. [2022-11-22 02:23:11,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:23:11,079 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 [2022-11-22 02:23:11,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:11,155 INFO L225 Difference]: With dead ends: 20021 [2022-11-22 02:23:11,155 INFO L226 Difference]: Without dead ends: 20021 [2022-11-22 02:23:11,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-22 02:23:11,157 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 426 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:11,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 328 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:23:11,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20021 states. [2022-11-22 02:23:11,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20021 to 15677. [2022-11-22 02:23:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15677 states, 15611 states have (on average 2.86592787137275) internal successors, (44740), 15676 states have internal predecessors, (44740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15677 states to 15677 states and 44740 transitions. [2022-11-22 02:23:11,916 INFO L78 Accepts]: Start accepts. Automaton has 15677 states and 44740 transitions. Word has length 20 [2022-11-22 02:23:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:11,917 INFO L495 AbstractCegarLoop]: Abstraction has 15677 states and 44740 transitions. [2022-11-22 02:23:11,917 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) [2022-11-22 02:23:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 15677 states and 44740 transitions. [2022-11-22 02:23:11,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 02:23:11,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:11,921 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] [2022-11-22 02:23:11,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:23:11,923 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:11,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:11,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1107901880, now seen corresponding path program 1 times [2022-11-22 02:23:11,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:11,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931598698] [2022-11-22 02:23:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:11,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:12,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:12,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931598698] [2022-11-22 02:23:12,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931598698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:12,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:12,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:23:12,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549109454] [2022-11-22 02:23:12,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:12,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:23:12,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:12,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:23:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:23:12,557 INFO L87 Difference]: Start difference. First operand 15677 states and 44740 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) [2022-11-22 02:23:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:13,479 INFO L93 Difference]: Finished difference Result 16889 states and 48380 transitions. [2022-11-22 02:23:13,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:23:13,479 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 [2022-11-22 02:23:13,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:13,535 INFO L225 Difference]: With dead ends: 16889 [2022-11-22 02:23:13,536 INFO L226 Difference]: Without dead ends: 16889 [2022-11-22 02:23:13,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-22 02:23:13,537 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 315 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:13,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 184 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:23:13,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16889 states. [2022-11-22 02:23:14,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16889 to 15407. [2022-11-22 02:23:14,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15407 states, 15349 states have (on average 2.8757573783308357) internal successors, (44140), 15406 states have internal predecessors, (44140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15407 states to 15407 states and 44140 transitions. [2022-11-22 02:23:14,117 INFO L78 Accepts]: Start accepts. Automaton has 15407 states and 44140 transitions. Word has length 20 [2022-11-22 02:23:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:14,117 INFO L495 AbstractCegarLoop]: Abstraction has 15407 states and 44140 transitions. [2022-11-22 02:23:14,118 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) [2022-11-22 02:23:14,118 INFO L276 IsEmpty]: Start isEmpty. Operand 15407 states and 44140 transitions. [2022-11-22 02:23:14,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 02:23:14,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:14,121 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] [2022-11-22 02:23:14,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:23:14,122 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:14,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:14,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1132146717, now seen corresponding path program 2 times [2022-11-22 02:23:14,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:14,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188634744] [2022-11-22 02:23:14,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:14,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:14,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:14,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188634744] [2022-11-22 02:23:14,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188634744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:14,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:14,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:23:14,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078936054] [2022-11-22 02:23:14,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:14,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:23:14,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:14,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:23:14,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:23:14,670 INFO L87 Difference]: Start difference. First operand 15407 states and 44140 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:16,165 INFO L93 Difference]: Finished difference Result 35623 states and 101147 transitions. [2022-11-22 02:23:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:23:16,166 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 [2022-11-22 02:23:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:16,282 INFO L225 Difference]: With dead ends: 35623 [2022-11-22 02:23:16,282 INFO L226 Difference]: Without dead ends: 35623 [2022-11-22 02:23:16,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-22 02:23:16,283 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 460 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:16,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 447 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:23:16,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35623 states. [2022-11-22 02:23:16,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35623 to 14138. [2022-11-22 02:23:17,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14138 states, 14080 states have (on average 2.867400568181818) internal successors, (40373), 14137 states have internal predecessors, (40373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14138 states to 14138 states and 40373 transitions. [2022-11-22 02:23:17,062 INFO L78 Accepts]: Start accepts. Automaton has 14138 states and 40373 transitions. Word has length 20 [2022-11-22 02:23:17,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:17,062 INFO L495 AbstractCegarLoop]: Abstraction has 14138 states and 40373 transitions. [2022-11-22 02:23:17,063 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) [2022-11-22 02:23:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 14138 states and 40373 transitions. [2022-11-22 02:23:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 02:23:17,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:17,069 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] [2022-11-22 02:23:17,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:23:17,070 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:17,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:17,071 INFO L85 PathProgramCache]: Analyzing trace with hash -223261197, now seen corresponding path program 3 times [2022-11-22 02:23:17,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:17,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870829060] [2022-11-22 02:23:17,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:17,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:17,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:17,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870829060] [2022-11-22 02:23:17,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870829060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:17,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:17,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:23:17,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873295264] [2022-11-22 02:23:17,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:17,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:23:17,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:23:17,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:23:17,552 INFO L87 Difference]: Start difference. First operand 14138 states and 40373 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:18,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:18,914 INFO L93 Difference]: Finished difference Result 30661 states and 86421 transitions. [2022-11-22 02:23:18,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:23:18,914 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 [2022-11-22 02:23:18,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:19,030 INFO L225 Difference]: With dead ends: 30661 [2022-11-22 02:23:19,031 INFO L226 Difference]: Without dead ends: 30661 [2022-11-22 02:23:19,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:23:19,032 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 461 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:19,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 406 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:23:19,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30661 states. [2022-11-22 02:23:19,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30661 to 12869. [2022-11-22 02:23:19,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12869 states, 12811 states have (on average 2.857388182031067) internal successors, (36606), 12868 states have internal predecessors, (36606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12869 states to 12869 states and 36606 transitions. [2022-11-22 02:23:19,654 INFO L78 Accepts]: Start accepts. Automaton has 12869 states and 36606 transitions. Word has length 20 [2022-11-22 02:23:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:19,655 INFO L495 AbstractCegarLoop]: Abstraction has 12869 states and 36606 transitions. [2022-11-22 02:23:19,655 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) [2022-11-22 02:23:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 12869 states and 36606 transitions. [2022-11-22 02:23:19,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 02:23:19,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:19,658 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] [2022-11-22 02:23:19,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:23:19,659 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:19,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1842881723, now seen corresponding path program 4 times [2022-11-22 02:23:19,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:19,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029407153] [2022-11-22 02:23:19,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:19,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:20,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:20,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029407153] [2022-11-22 02:23:20,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029407153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:20,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:20,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:23:20,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115349937] [2022-11-22 02:23:20,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:20,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:23:20,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:20,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:23:20,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:23:20,148 INFO L87 Difference]: Start difference. First operand 12869 states and 36606 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) [2022-11-22 02:23:21,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:21,847 INFO L93 Difference]: Finished difference Result 21998 states and 60712 transitions. [2022-11-22 02:23:21,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:23:21,848 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 [2022-11-22 02:23:21,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:21,913 INFO L225 Difference]: With dead ends: 21998 [2022-11-22 02:23:21,914 INFO L226 Difference]: Without dead ends: 21998 [2022-11-22 02:23:21,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:23:21,915 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 413 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:21,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 595 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 02:23:21,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21998 states. [2022-11-22 02:23:22,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21998 to 9075. [2022-11-22 02:23:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9075 states, 9043 states have (on average 2.80260975340042) internal successors, (25344), 9074 states have internal predecessors, (25344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:22,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9075 states to 9075 states and 25344 transitions. [2022-11-22 02:23:22,283 INFO L78 Accepts]: Start accepts. Automaton has 9075 states and 25344 transitions. Word has length 20 [2022-11-22 02:23:22,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:22,283 INFO L495 AbstractCegarLoop]: Abstraction has 9075 states and 25344 transitions. [2022-11-22 02:23:22,283 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) [2022-11-22 02:23:22,284 INFO L276 IsEmpty]: Start isEmpty. Operand 9075 states and 25344 transitions. [2022-11-22 02:23:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 02:23:22,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:22,287 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] [2022-11-22 02:23:22,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:23:22,288 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:22,289 INFO L85 PathProgramCache]: Analyzing trace with hash -160572250, now seen corresponding path program 1 times [2022-11-22 02:23:22,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:22,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394487919] [2022-11-22 02:23:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:22,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:22,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:22,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394487919] [2022-11-22 02:23:22,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394487919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:22,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:22,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:23:22,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897597717] [2022-11-22 02:23:22,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:22,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:22,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:22,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:22,342 INFO L87 Difference]: Start difference. First operand 9075 states and 25344 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:22,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:22,547 INFO L93 Difference]: Finished difference Result 9220 states and 25760 transitions. [2022-11-22 02:23:22,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:22,548 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 [2022-11-22 02:23:22,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:22,585 INFO L225 Difference]: With dead ends: 9220 [2022-11-22 02:23:22,586 INFO L226 Difference]: Without dead ends: 9220 [2022-11-22 02:23:22,586 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 [2022-11-22 02:23:22,587 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 38 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:22,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 73 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:22,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9220 states. [2022-11-22 02:23:23,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9220 to 9220. [2022-11-22 02:23:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9220 states, 9192 states have (on average 2.802436901653612) internal successors, (25760), 9219 states have internal predecessors, (25760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9220 states to 9220 states and 25760 transitions. [2022-11-22 02:23:23,061 INFO L78 Accepts]: Start accepts. Automaton has 9220 states and 25760 transitions. Word has length 22 [2022-11-22 02:23:23,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:23,062 INFO L495 AbstractCegarLoop]: Abstraction has 9220 states and 25760 transitions. [2022-11-22 02:23:23,062 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) [2022-11-22 02:23:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 9220 states and 25760 transitions. [2022-11-22 02:23:23,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 02:23:23,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:23,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:23,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:23:23,067 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:23,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:23,068 INFO L85 PathProgramCache]: Analyzing trace with hash 480874094, now seen corresponding path program 1 times [2022-11-22 02:23:23,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:23,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870003136] [2022-11-22 02:23:23,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:23,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:23,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:23,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870003136] [2022-11-22 02:23:23,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870003136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:23,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:23,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:23:23,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464001849] [2022-11-22 02:23:23,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:23,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:23,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:23,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:23,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:23,140 INFO L87 Difference]: Start difference. First operand 9220 states and 25760 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:23,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:23,232 INFO L93 Difference]: Finished difference Result 1814 states and 4607 transitions. [2022-11-22 02:23:23,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:23,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-22 02:23:23,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:23,237 INFO L225 Difference]: With dead ends: 1814 [2022-11-22 02:23:23,237 INFO L226 Difference]: Without dead ends: 1814 [2022-11-22 02:23:23,238 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 [2022-11-22 02:23:23,240 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 64 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:23,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 49 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2022-11-22 02:23:23,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1515. [2022-11-22 02:23:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 2.5) internal successors, (3775), 1514 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 3775 transitions. [2022-11-22 02:23:23,275 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 3775 transitions. Word has length 27 [2022-11-22 02:23:23,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:23,276 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 3775 transitions. [2022-11-22 02:23:23,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:23,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 3775 transitions. [2022-11-22 02:23:23,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 02:23:23,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:23,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:23,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:23:23,284 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:23,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1363664147, now seen corresponding path program 1 times [2022-11-22 02:23:23,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:23,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318503261] [2022-11-22 02:23:23,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:23,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:23,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:23,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:23,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318503261] [2022-11-22 02:23:23,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318503261] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:23:23,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508204295] [2022-11-22 02:23:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:23,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:23,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:23,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:23,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:23:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:23,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:23:23,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:23,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:23:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:23,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508204295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:23:23,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [100776101] [2022-11-22 02:23:23,787 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:336) 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) [2022-11-22 02:23:23,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:23:23,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-22 02:23:23,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816705556] [2022-11-22 02:23:23,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:23:23,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:23:23,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:23,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:23:23,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:23:23,793 INFO L87 Difference]: Start difference. First operand 1515 states and 3775 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:24,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:24,066 INFO L93 Difference]: Finished difference Result 3974 states and 9734 transitions. [2022-11-22 02:23:24,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:23:24,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-22 02:23:24,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:24,076 INFO L225 Difference]: With dead ends: 3974 [2022-11-22 02:23:24,076 INFO L226 Difference]: Without dead ends: 3974 [2022-11-22 02:23:24,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:23:24,077 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 304 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:24,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 182 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:23:24,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2022-11-22 02:23:24,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3946. [2022-11-22 02:23:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3946 states, 3939 states have (on average 2.465092663112465) internal successors, (9710), 3945 states have internal predecessors, (9710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 9710 transitions. [2022-11-22 02:23:24,163 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 9710 transitions. Word has length 37 [2022-11-22 02:23:24,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:24,163 INFO L495 AbstractCegarLoop]: Abstraction has 3946 states and 9710 transitions. [2022-11-22 02:23:24,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:24,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 9710 transitions. [2022-11-22 02:23:24,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 02:23:24,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:24,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:24,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:23:24,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 02:23:24,376 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:24,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:24,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1440394780, now seen corresponding path program 1 times [2022-11-22 02:23:24,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:24,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430119431] [2022-11-22 02:23:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:24,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:24,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:24,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430119431] [2022-11-22 02:23:24,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430119431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:24,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:24,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:23:24,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111338802] [2022-11-22 02:23:24,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:24,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:24,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:24,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:24,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:24,442 INFO L87 Difference]: Start difference. First operand 3946 states and 9710 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:24,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:24,563 INFO L93 Difference]: Finished difference Result 3918 states and 9636 transitions. [2022-11-22 02:23:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:24,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-11-22 02:23:24,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:24,574 INFO L225 Difference]: With dead ends: 3918 [2022-11-22 02:23:24,574 INFO L226 Difference]: Without dead ends: 3918 [2022-11-22 02:23:24,577 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 [2022-11-22 02:23:24,577 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:24,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 61 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:24,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2022-11-22 02:23:24,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3918. [2022-11-22 02:23:24,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3914 states have (on average 2.461931527848748) internal successors, (9636), 3917 states have internal predecessors, (9636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:24,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 9636 transitions. [2022-11-22 02:23:24,661 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 9636 transitions. Word has length 39 [2022-11-22 02:23:24,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:24,662 INFO L495 AbstractCegarLoop]: Abstraction has 3918 states and 9636 transitions. [2022-11-22 02:23:24,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:24,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 9636 transitions. [2022-11-22 02:23:24,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-22 02:23:24,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:24,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:24,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:23:24,671 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:24,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:24,672 INFO L85 PathProgramCache]: Analyzing trace with hash 2091703133, now seen corresponding path program 1 times [2022-11-22 02:23:24,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:24,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956926929] [2022-11-22 02:23:24,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:24,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:25,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:25,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956926929] [2022-11-22 02:23:25,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956926929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:25,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:25,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:25,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221614096] [2022-11-22 02:23:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:25,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:23:25,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:25,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:23:25,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:23:25,222 INFO L87 Difference]: Start difference. First operand 3918 states and 9636 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:25,652 INFO L93 Difference]: Finished difference Result 3890 states and 9562 transitions. [2022-11-22 02:23:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:23:25,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-11-22 02:23:25,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:25,661 INFO L225 Difference]: With dead ends: 3890 [2022-11-22 02:23:25,661 INFO L226 Difference]: Without dead ends: 3838 [2022-11-22 02:23:25,661 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 [2022-11-22 02:23:25,662 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:25,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 65 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:23:25,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3838 states. [2022-11-22 02:23:25,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3838 to 3838. [2022-11-22 02:23:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3838 states, 3837 states have (on average 2.464425332290852) internal successors, (9456), 3837 states have internal predecessors, (9456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 9456 transitions. [2022-11-22 02:23:25,748 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 9456 transitions. Word has length 48 [2022-11-22 02:23:25,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:25,750 INFO L495 AbstractCegarLoop]: Abstraction has 3838 states and 9456 transitions. [2022-11-22 02:23:25,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 9456 transitions. [2022-11-22 02:23:25,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-22 02:23:25,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:25,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:25,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 02:23:25,760 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:25,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:25,761 INFO L85 PathProgramCache]: Analyzing trace with hash -910084245, now seen corresponding path program 1 times [2022-11-22 02:23:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:25,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794638684] [2022-11-22 02:23:25,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:25,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 02:23:25,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:25,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794638684] [2022-11-22 02:23:25,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794638684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:23:25,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091444608] [2022-11-22 02:23:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:25,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:25,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:25,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:25,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:23:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:26,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:23:26,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:26,249 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 02:23:26,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:23:26,346 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 02:23:26,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091444608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:23:26,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1545059006] [2022-11-22 02:23:26,347 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:336) 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) [2022-11-22 02:23:26,348 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:23:26,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-22 02:23:26,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320583904] [2022-11-22 02:23:26,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:23:26,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:23:26,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:26,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:23:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:23:26,352 INFO L87 Difference]: Start difference. First operand 3838 states and 9456 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:26,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:26,841 INFO L93 Difference]: Finished difference Result 8373 states and 20474 transitions. [2022-11-22 02:23:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:23:26,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-22 02:23:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:26,858 INFO L225 Difference]: With dead ends: 8373 [2022-11-22 02:23:26,858 INFO L226 Difference]: Without dead ends: 8373 [2022-11-22 02:23:26,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-11-22 02:23:26,859 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 264 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:26,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 228 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:23:26,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8373 states. [2022-11-22 02:23:27,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8373 to 6108. [2022-11-22 02:23:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 6107 states have (on average 2.4923857868020303) internal successors, (15221), 6107 states have internal predecessors, (15221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:27,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 15221 transitions. [2022-11-22 02:23:27,041 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 15221 transitions. Word has length 52 [2022-11-22 02:23:27,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:27,042 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 15221 transitions. [2022-11-22 02:23:27,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:27,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 15221 transitions. [2022-11-22 02:23:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 02:23:27,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:27,056 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:27,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:27,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-22 02:23:27,263 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:27,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:27,263 INFO L85 PathProgramCache]: Analyzing trace with hash 362019822, now seen corresponding path program 1 times [2022-11-22 02:23:27,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:27,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332734376] [2022-11-22 02:23:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:27,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:27,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332734376] [2022-11-22 02:23:27,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332734376] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:23:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098638274] [2022-11-22 02:23:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:27,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:27,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:27,559 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:27,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:23:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:27,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:23:27,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 02:23:27,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:27,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098638274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:27,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:23:27,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-11-22 02:23:27,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911829868] [2022-11-22 02:23:27,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:27,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:23:27,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:27,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:23:27,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:23:27,940 INFO L87 Difference]: Start difference. First operand 6108 states and 15221 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:28,293 INFO L93 Difference]: Finished difference Result 8622 states and 21280 transitions. [2022-11-22 02:23:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:23:28,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-22 02:23:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:28,315 INFO L225 Difference]: With dead ends: 8622 [2022-11-22 02:23:28,315 INFO L226 Difference]: Without dead ends: 8622 [2022-11-22 02:23:28,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-22 02:23:28,316 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 135 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:28,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 163 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:23:28,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8622 states. [2022-11-22 02:23:28,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8622 to 7343. [2022-11-22 02:23:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.5128030509397985) internal successors, (18449), 7342 states have internal predecessors, (18449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 18449 transitions. [2022-11-22 02:23:28,495 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 18449 transitions. Word has length 76 [2022-11-22 02:23:28,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:28,496 INFO L495 AbstractCegarLoop]: Abstraction has 7343 states and 18449 transitions. [2022-11-22 02:23:28,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:28,496 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 18449 transitions. [2022-11-22 02:23:28,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-22 02:23:28,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:28,512 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:28,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:28,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-22 02:23:28,718 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-11-22 02:23:28,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:28,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1869104201, now seen corresponding path program 2 times [2022-11-22 02:23:28,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:28,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722773799] [2022-11-22 02:23:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:28,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:28,953 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:28,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:28,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722773799] [2022-11-22 02:23:28,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722773799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:23:28,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592819258] [2022-11-22 02:23:28,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:23:28,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:28,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:28,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:28,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:23:29,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 02:23:29,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:23:29,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 02:23:29,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:29,363 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 [2022-11-22 02:23:29,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:29,396 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 [2022-11-22 02:23:29,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:29,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:29,437 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:23:29,437 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 [2022-11-22 02:23:29,461 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-22 02:23:29,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:29,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592819258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:29,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:23:29,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-11-22 02:23:29,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409079248] [2022-11-22 02:23:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:29,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:23:29,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:29,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:23:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:23:29,464 INFO L87 Difference]: Start difference. First operand 7343 states and 18449 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:29,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:29,785 INFO L93 Difference]: Finished difference Result 7287 states and 18331 transitions. [2022-11-22 02:23:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:23:29,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-22 02:23:29,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:29,787 INFO L225 Difference]: With dead ends: 7287 [2022-11-22 02:23:29,787 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:23:29,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:23:29,788 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 107 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:29,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 99 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:23:29,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:23:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:23:29,789 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) [2022-11-22 02:23:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:23:29,790 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2022-11-22 02:23:29,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:29,790 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:23:29,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:29,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:23:29,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:23:29,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-11-22 02:23:29,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-11-22 02:23:29,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2022-11-22 02:23:29,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 26 remaining) [2022-11-22 02:23:29,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-11-22 02:23:29,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-11-22 02:23:29,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-11-22 02:23:29,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-11-22 02:23:29,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-11-22 02:23:29,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-11-22 02:23:29,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2022-11-22 02:23:29,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-11-22 02:23:29,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-11-22 02:23:29,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-11-22 02:23:29,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-11-22 02:23:29,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-11-22 02:23:29,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-11-22 02:23:29,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-11-22 02:23:29,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-11-22 02:23:29,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-11-22 02:23:29,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-11-22 02:23:29,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-11-22 02:23:29,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-11-22 02:23:29,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-11-22 02:23:29,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-11-22 02:23:29,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-11-22 02:23:29,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:30,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:30,009 INFO L444 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:30,015 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:23:30,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:23:30,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:23:30 BasicIcfg [2022-11-22 02:23:30,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:23:30,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:23:30,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:23:30,021 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:23:30,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:53" (3/4) ... [2022-11-22 02:23:30,026 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:23:30,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-11-22 02:23:30,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-11-22 02:23:30,041 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-22 02:23:30,042 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 02:23:30,042 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 02:23:30,042 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:23:30,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:23:30,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:23:30,092 INFO L158 Benchmark]: Toolchain (without parser) took 39093.08ms. Allocated memory was 174.1MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 133.3MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 942.0MB. Max. memory is 16.1GB. [2022-11-22 02:23:30,092 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 174.1MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:23:30,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 912.37ms. Allocated memory is still 174.1MB. Free memory was 132.8MB in the beginning and 103.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-22 02:23:30,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.58ms. Allocated memory is still 174.1MB. Free memory was 103.4MB in the beginning and 100.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:23:30,093 INFO L158 Benchmark]: Boogie Preprocessor took 84.08ms. Allocated memory is still 174.1MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:23:30,094 INFO L158 Benchmark]: RCFGBuilder took 915.38ms. Allocated memory is still 174.1MB. Free memory was 98.2MB in the beginning and 76.7MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-22 02:23:30,094 INFO L158 Benchmark]: TraceAbstraction took 36996.02ms. Allocated memory was 174.1MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 76.2MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 883.3MB. Max. memory is 16.1GB. [2022-11-22 02:23:30,095 INFO L158 Benchmark]: Witness Printer took 70.19ms. Allocated memory is still 7.1GB. Free memory was 6.2GB in the beginning and 6.1GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:23:30,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 174.1MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 912.37ms. Allocated memory is still 174.1MB. Free memory was 132.8MB in the beginning and 103.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.58ms. Allocated memory is still 174.1MB. Free memory was 103.4MB in the beginning and 100.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.08ms. Allocated memory is still 174.1MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 915.38ms. Allocated memory is still 174.1MB. Free memory was 98.2MB in the beginning and 76.7MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 36996.02ms. Allocated memory was 174.1MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 76.2MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 883.3MB. Max. memory is 16.1GB. * Witness Printer took 70.19ms. Allocated memory is still 7.1GB. Free memory was 6.2GB in the beginning and 6.1GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 222 PlacesBefore, 87 PlacesAfterwards, 225 TransitionsBefore, 86 TransitionsAfterwards, 17640 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 97 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 4 ChoiceCompositions, 158 TotalNumberOfCompositions, 59500 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27311, independent: 26446, independent conditional: 0, independent unconditional: 26446, dependent: 865, dependent conditional: 0, dependent unconditional: 865, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12576, independent: 12354, independent conditional: 0, independent unconditional: 12354, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12576, independent: 12208, independent conditional: 0, independent unconditional: 12208, dependent: 368, dependent conditional: 0, dependent unconditional: 368, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 368, independent: 146, independent conditional: 0, independent unconditional: 146, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 983, independent: 374, independent conditional: 0, independent unconditional: 374, dependent: 609, dependent conditional: 0, dependent unconditional: 609, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27311, independent: 14092, independent conditional: 0, independent unconditional: 14092, dependent: 643, dependent conditional: 0, dependent unconditional: 643, unknown: 12576, unknown conditional: 0, unknown unconditional: 12576] , Statistics on independence cache: Total cache size (in pairs): 2364, Positive cache size: 2243, Positive conditional cache size: 0, Positive unconditional cache size: 2243, Negative cache size: 121, Negative conditional cache size: 0, Negative unconditional cache size: 121, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 961]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 968]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: 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: 975]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 983]: 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, 368 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 36.6s, OverallIterations: 19, TraceHistogramMax: 4, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3548 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3548 mSDsluCounter, 3596 SdHoareTripleChecker+Invalid, 7.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2251 mSDsCounter, 504 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7287 IncrementalHoareTripleChecker+Invalid, 7791 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 504 mSolverCounterUnsat, 1345 mSDtfsCounter, 7287 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15677occurred in iteration=7, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.6s AutomataMinimizationTime, 19 MinimizatonAttempts, 73547 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 802 NumberOfCodeBlocks, 731 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 866 ConstructedInterpolants, 0 QuantifiedInterpolants, 4118 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1292 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 25 InterpolantComputations, 17 PerfectInterpolantSequences, 203/331 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 02:23:30,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bdf35b-397d-4e96-842b-af736ac3235b/bin/utaipan-g80aRyZoba/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