./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:27:39,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:27:39,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:27:39,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:27:39,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:27:39,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:27:39,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:27:39,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:27:39,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:27:39,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:27:39,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:27:39,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:27:39,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:27:39,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:27:39,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:27:39,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:27:39,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:27:39,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:27:39,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:27:39,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:27:39,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:27:39,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:27:39,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:27:39,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:27:39,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:27:39,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:27:39,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:27:39,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:27:39,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:27:39,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:27:39,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:27:39,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:27:39,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:27:39,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:27:39,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:27:39,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:27:39,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:27:39,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:27:39,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:27:39,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:27:39,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:27:39,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:27:39,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:27:39,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:27:39,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:27:39,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:27:39,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:27:39,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:27:39,966 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:27:39,967 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:27:39,967 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:27:39,967 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:27:39,968 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:27:39,968 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:27:39,968 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:27:39,969 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:27:39,969 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:27:39,969 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:27:39,970 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:27:39,970 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:27:39,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:27:39,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:27:39,972 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:27:39,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:27:39,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:27:39,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:27:39,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:27:39,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:27:39,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:27:39,974 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:27:39,975 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:27:39,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:27:39,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:27:39,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:27:39,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:27:39,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:27:39,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:27:39,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:27:39,978 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:27:39,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:27:39,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:27:39,979 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:27:39,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:27:39,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:27:39,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:27:39,980 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_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad [2022-11-03 02:27:40,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:27:40,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:27:40,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:27:40,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:27:40,409 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:27:40,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-03 02:27:40,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/data/fe964c5dd/524e3a0ea38145f7938d4c15134176fb/FLAG11a052ab8 [2022-11-03 02:27:41,122 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:27:41,123 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-03 02:27:41,132 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/data/fe964c5dd/524e3a0ea38145f7938d4c15134176fb/FLAG11a052ab8 [2022-11-03 02:27:41,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/data/fe964c5dd/524e3a0ea38145f7938d4c15134176fb [2022-11-03 02:27:41,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:27:41,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:27:41,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:27:41,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:27:41,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:27:41,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:27:41" (1/1) ... [2022-11-03 02:27:41,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70917f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:41, skipping insertion in model container [2022-11-03 02:27:41,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:27:41" (1/1) ... [2022-11-03 02:27:41,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:27:41,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:27:41,934 WARN L230 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_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-03 02:27:41,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:27:41,966 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:27:42,051 WARN L230 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_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-03 02:27:42,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:27:42,088 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:27:42,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42 WrapperNode [2022-11-03 02:27:42,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:27:42,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:27:42,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:27:42,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:27:42,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,172 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-03 02:27:42,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:27:42,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:27:42,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:27:42,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:27:42,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,234 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:27:42,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:27:42,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:27:42,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:27:42,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (1/1) ... [2022-11-03 02:27:42,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:27:42,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:27:42,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:27:42,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:27:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:27:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:27:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:27:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:27:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 02:27:42,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 02:27:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 02:27:42,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 02:27:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 02:27:42,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 02:27:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:27:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 02:27:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 02:27:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:27:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:27:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:27:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:27:42,373 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:27:42,551 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:27:42,554 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:27:43,896 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:27:44,195 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:27:44,196 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:27:44,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:27:44 BoogieIcfgContainer [2022-11-03 02:27:44,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:27:44,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:27:44,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:27:44,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:27:44,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:27:41" (1/3) ... [2022-11-03 02:27:44,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8af6498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:27:44, skipping insertion in model container [2022-11-03 02:27:44,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:42" (2/3) ... [2022-11-03 02:27:44,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8af6498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:27:44, skipping insertion in model container [2022-11-03 02:27:44,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:27:44" (3/3) ... [2022-11-03 02:27:44,242 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2022-11-03 02:27:44,255 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:27:44,268 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:27:44,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-03 02:27:44,269 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:27:44,457 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-03 02:27:44,505 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:27:44,522 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 528 transitions, 1080 flow [2022-11-03 02:27:44,528 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 528 transitions, 1080 flow [2022-11-03 02:27:44,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 528 transitions, 1080 flow [2022-11-03 02:27:44,859 INFO L130 PetriNetUnfolder]: 27/525 cut-off events. [2022-11-03 02:27:44,861 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-03 02:27:44,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 27/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 619 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-03 02:27:44,885 INFO L118 LiptonReduction]: Number of co-enabled transitions 13362 [2022-11-03 02:31:51,326 INFO L133 LiptonReduction]: Checked pairs total: 94810 [2022-11-03 02:31:51,326 INFO L135 LiptonReduction]: Total number of compositions: 655 [2022-11-03 02:31:51,337 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 130 places, 132 transitions, 288 flow [2022-11-03 02:31:54,932 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 52279 states, 49896 states have (on average 4.336640211640212) internal successors, (216381), 52278 states have internal predecessors, (216381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:31:54,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:31:54,979 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;@5978dcef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:31:54,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-03 02:31:55,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 52279 states, 49896 states have (on average 4.336640211640212) internal successors, (216381), 52278 states have internal predecessors, (216381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:31:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:31:55,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:55,233 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:31:55,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:31:55,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:55,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2175, now seen corresponding path program 1 times [2022-11-03 02:31:55,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:55,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878529847] [2022-11-03 02:31:55,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:55,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:31:55,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:55,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878529847] [2022-11-03 02:31:55,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878529847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:55,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:55,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:31:55,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424964518] [2022-11-03 02:31:55,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:55,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:31:55,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:55,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:31:55,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:31:55,566 INFO L87 Difference]: Start difference. First operand has 52279 states, 49896 states have (on average 4.336640211640212) internal successors, (216381), 52278 states have internal predecessors, (216381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:31:56,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:56,046 INFO L93 Difference]: Finished difference Result 5616 states and 22643 transitions. [2022-11-03 02:31:56,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:31:56,050 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-03 02:31:56,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:56,138 INFO L225 Difference]: With dead ends: 5616 [2022-11-03 02:31:56,138 INFO L226 Difference]: Without dead ends: 5585 [2022-11-03 02:31:56,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:31:56,143 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:56,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:31:56,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5585 states. [2022-11-03 02:31:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5585 to 5585. [2022-11-03 02:31:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5585 states, 5573 states have (on average 4.047371254261619) internal successors, (22556), 5584 states have internal predecessors, (22556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:31:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5585 states to 5585 states and 22556 transitions. [2022-11-03 02:31:56,707 INFO L78 Accepts]: Start accepts. Automaton has 5585 states and 22556 transitions. Word has length 1 [2022-11-03 02:31:56,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:56,708 INFO L495 AbstractCegarLoop]: Abstraction has 5585 states and 22556 transitions. [2022-11-03 02:31:56,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:31:56,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5585 states and 22556 transitions. [2022-11-03 02:31:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:31:56,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:56,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:31:56,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:31:56,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:31:56,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:56,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1304631907, now seen corresponding path program 1 times [2022-11-03 02:31:56,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:56,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408020814] [2022-11-03 02:31:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:31:57,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:57,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408020814] [2022-11-03 02:31:57,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408020814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:57,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:57,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:31:57,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851665314] [2022-11-03 02:31:57,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:57,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:31:57,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:57,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:31:57,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:31:57,385 INFO L87 Difference]: Start difference. First operand 5585 states and 22556 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:31:58,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:58,010 INFO L93 Difference]: Finished difference Result 5586 states and 22557 transitions. [2022-11-03 02:31:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:31:58,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:31:58,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:58,080 INFO L225 Difference]: With dead ends: 5586 [2022-11-03 02:31:58,081 INFO L226 Difference]: Without dead ends: 5586 [2022-11-03 02:31:58,081 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 [2022-11-03 02:31:58,084 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:58,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:31:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5586 states. [2022-11-03 02:31:58,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5586 to 5586. [2022-11-03 02:31:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5586 states, 5574 states have (on average 4.046824542518838) internal successors, (22557), 5585 states have internal predecessors, (22557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:31:58,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5586 states to 5586 states and 22557 transitions. [2022-11-03 02:31:58,381 INFO L78 Accepts]: Start accepts. Automaton has 5586 states and 22557 transitions. Word has length 13 [2022-11-03 02:31:58,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:58,381 INFO L495 AbstractCegarLoop]: Abstraction has 5586 states and 22557 transitions. [2022-11-03 02:31:58,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:31:58,382 INFO L276 IsEmpty]: Start isEmpty. Operand 5586 states and 22557 transitions. [2022-11-03 02:31:58,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:31:58,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:58,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:31:58,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:31:58,393 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:31:58,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:58,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2019257060, now seen corresponding path program 1 times [2022-11-03 02:31:58,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:58,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594409060] [2022-11-03 02:31:58,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:58,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:31:59,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:59,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594409060] [2022-11-03 02:31:59,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594409060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:59,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:59,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:31:59,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393657172] [2022-11-03 02:31:59,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:59,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:31:59,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:59,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:31:59,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:31:59,393 INFO L87 Difference]: Start difference. First operand 5586 states and 22557 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:02,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:02,428 INFO L93 Difference]: Finished difference Result 9026 states and 36659 transitions. [2022-11-03 02:32:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:32:02,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-03 02:32:02,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:02,559 INFO L225 Difference]: With dead ends: 9026 [2022-11-03 02:32:02,560 INFO L226 Difference]: Without dead ends: 9026 [2022-11-03 02:32:02,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:32:02,566 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 80 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:02,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 71 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 02:32:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9026 states. [2022-11-03 02:32:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9026 to 6506. [2022-11-03 02:32:02,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6494 states have (on average 4.064213119802895) internal successors, (26393), 6505 states have internal predecessors, (26393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:03,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 26393 transitions. [2022-11-03 02:32:03,040 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 26393 transitions. Word has length 14 [2022-11-03 02:32:03,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:03,041 INFO L495 AbstractCegarLoop]: Abstraction has 6506 states and 26393 transitions. [2022-11-03 02:32:03,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 26393 transitions. [2022-11-03 02:32:03,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:32:03,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:03,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:03,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:32:03,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:03,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:03,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1827556102, now seen corresponding path program 1 times [2022-11-03 02:32:03,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:03,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964707957] [2022-11-03 02:32:03,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:03,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:32:03,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:03,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964707957] [2022-11-03 02:32:03,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964707957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:03,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:03,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:32:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639533826] [2022-11-03 02:32:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:03,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:32:03,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:03,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:32:03,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:03,209 INFO L87 Difference]: Start difference. First operand 6506 states and 26393 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:04,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:04,097 INFO L93 Difference]: Finished difference Result 10116 states and 41047 transitions. [2022-11-03 02:32:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:32:04,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:32:04,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:04,172 INFO L225 Difference]: With dead ends: 10116 [2022-11-03 02:32:04,172 INFO L226 Difference]: Without dead ends: 10116 [2022-11-03 02:32:04,173 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 [2022-11-03 02:32:04,176 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 57 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:04,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 91 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:32:04,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10116 states. [2022-11-03 02:32:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10116 to 6336. [2022-11-03 02:32:04,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6336 states, 6326 states have (on average 4.064653809674359) internal successors, (25713), 6335 states have internal predecessors, (25713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6336 states to 6336 states and 25713 transitions. [2022-11-03 02:32:04,514 INFO L78 Accepts]: Start accepts. Automaton has 6336 states and 25713 transitions. Word has length 15 [2022-11-03 02:32:04,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:04,514 INFO L495 AbstractCegarLoop]: Abstraction has 6336 states and 25713 transitions. [2022-11-03 02:32:04,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 6336 states and 25713 transitions. [2022-11-03 02:32:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:32:04,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:04,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:04,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:32:04,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:04,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:04,518 INFO L85 PathProgramCache]: Analyzing trace with hash 440232106, now seen corresponding path program 1 times [2022-11-03 02:32:04,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:04,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250519700] [2022-11-03 02:32:04,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:04,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:04,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:32:04,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:04,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250519700] [2022-11-03 02:32:04,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250519700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:04,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:04,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:32:04,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344431593] [2022-11-03 02:32:04,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:04,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:32:04,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:04,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:32:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:32:04,954 INFO L87 Difference]: Start difference. First operand 6336 states and 25713 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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) [2022-11-03 02:32:05,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:05,543 INFO L93 Difference]: Finished difference Result 6338 states and 25715 transitions. [2022-11-03 02:32:05,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:32:05,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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 [2022-11-03 02:32:05,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:05,591 INFO L225 Difference]: With dead ends: 6338 [2022-11-03 02:32:05,591 INFO L226 Difference]: Without dead ends: 6338 [2022-11-03 02:32:05,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:32:05,592 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 67 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:05,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 76 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:32:05,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2022-11-03 02:32:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 6338. [2022-11-03 02:32:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6338 states, 6328 states have (on average 4.063685208596713) internal successors, (25715), 6337 states have internal predecessors, (25715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:05,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6338 states to 6338 states and 25715 transitions. [2022-11-03 02:32:05,865 INFO L78 Accepts]: Start accepts. Automaton has 6338 states and 25715 transitions. Word has length 16 [2022-11-03 02:32:05,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:05,866 INFO L495 AbstractCegarLoop]: Abstraction has 6338 states and 25715 transitions. [2022-11-03 02:32:05,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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) [2022-11-03 02:32:05,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6338 states and 25715 transitions. [2022-11-03 02:32:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:32:05,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:05,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:05,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:32:05,870 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:05,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:05,871 INFO L85 PathProgramCache]: Analyzing trace with hash 685065570, now seen corresponding path program 1 times [2022-11-03 02:32:05,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:05,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851634685] [2022-11-03 02:32:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:05,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:32:06,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:06,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851634685] [2022-11-03 02:32:06,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851634685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:06,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:06,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:32:06,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572390206] [2022-11-03 02:32:06,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:06,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:32:06,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:06,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:32:06,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:32:06,694 INFO L87 Difference]: Start difference. First operand 6338 states and 25715 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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) [2022-11-03 02:32:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:09,022 INFO L93 Difference]: Finished difference Result 9223 states and 37357 transitions. [2022-11-03 02:32:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:32:09,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 [2022-11-03 02:32:09,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:09,184 INFO L225 Difference]: With dead ends: 9223 [2022-11-03 02:32:09,184 INFO L226 Difference]: Without dead ends: 9223 [2022-11-03 02:32:09,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:32:09,188 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:09,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 83 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 02:32:09,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9223 states. [2022-11-03 02:32:09,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9223 to 8533. [2022-11-03 02:32:09,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8533 states, 8523 states have (on average 4.118737533732254) internal successors, (35104), 8532 states have internal predecessors, (35104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8533 states to 8533 states and 35104 transitions. [2022-11-03 02:32:09,645 INFO L78 Accepts]: Start accepts. Automaton has 8533 states and 35104 transitions. Word has length 18 [2022-11-03 02:32:09,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:09,647 INFO L495 AbstractCegarLoop]: Abstraction has 8533 states and 35104 transitions. [2022-11-03 02:32:09,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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) [2022-11-03 02:32:09,647 INFO L276 IsEmpty]: Start isEmpty. Operand 8533 states and 35104 transitions. [2022-11-03 02:32:09,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:32:09,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:09,653 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] [2022-11-03 02:32:09,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:32:09,653 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:09,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:09,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1155853880, now seen corresponding path program 1 times [2022-11-03 02:32:09,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:09,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830138346] [2022-11-03 02:32:09,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:09,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:32:10,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:10,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830138346] [2022-11-03 02:32:10,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830138346] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:10,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094985266] [2022-11-03 02:32:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:10,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:10,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:10,103 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:10,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:32:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:10,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:32:10,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:32:10,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:32:11,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094985266] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:11,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1551351388] [2022-11-03 02:32:11,150 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) [2022-11-03 02:32:11,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:11,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-03 02:32:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658710313] [2022-11-03 02:32:11,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:11,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:32:11,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:11,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:32:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:32:11,164 INFO L87 Difference]: Start difference. First operand 8533 states and 35104 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:13,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:13,358 INFO L93 Difference]: Finished difference Result 17524 states and 68970 transitions. [2022-11-03 02:32:13,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:32:13,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-03 02:32:13,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:13,484 INFO L225 Difference]: With dead ends: 17524 [2022-11-03 02:32:13,485 INFO L226 Difference]: Without dead ends: 17524 [2022-11-03 02:32:13,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:32:13,486 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 564 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:13,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 617 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 02:32:13,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17524 states. [2022-11-03 02:32:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17524 to 11923. [2022-11-03 02:32:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11923 states, 11913 states have (on average 4.085536808528499) internal successors, (48671), 11922 states have internal predecessors, (48671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:14,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11923 states to 11923 states and 48671 transitions. [2022-11-03 02:32:14,214 INFO L78 Accepts]: Start accepts. Automaton has 11923 states and 48671 transitions. Word has length 21 [2022-11-03 02:32:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:14,215 INFO L495 AbstractCegarLoop]: Abstraction has 11923 states and 48671 transitions. [2022-11-03 02:32:14,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 11923 states and 48671 transitions. [2022-11-03 02:32:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:32:14,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:14,222 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] [2022-11-03 02:32:14,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:14,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 02:32:14,440 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:14,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:14,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1295492584, now seen corresponding path program 1 times [2022-11-03 02:32:14,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:14,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064346593] [2022-11-03 02:32:14,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:14,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:32:14,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:14,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064346593] [2022-11-03 02:32:14,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064346593] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:14,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575897532] [2022-11-03 02:32:14,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:14,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:14,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:15,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:15,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:32:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:15,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:32:15,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:32:15,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:15,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:32:15,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575897532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:15,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [487244704] [2022-11-03 02:32:15,642 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) [2022-11-03 02:32:15,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:15,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-03 02:32:15,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147392720] [2022-11-03 02:32:15,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:15,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:32:15,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:15,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:32:15,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:32:15,644 INFO L87 Difference]: Start difference. First operand 11923 states and 48671 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:17,455 INFO L93 Difference]: Finished difference Result 10024 states and 40120 transitions. [2022-11-03 02:32:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:32:17,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 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 [2022-11-03 02:32:17,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:17,516 INFO L225 Difference]: With dead ends: 10024 [2022-11-03 02:32:17,517 INFO L226 Difference]: Without dead ends: 10024 [2022-11-03 02:32:17,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:32:17,518 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 389 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:17,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 276 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-03 02:32:17,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2022-11-03 02:32:17,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 9209. [2022-11-03 02:32:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9209 states, 9199 states have (on average 4.072725296227851) internal successors, (37465), 9208 states have internal predecessors, (37465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:18,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9209 states to 9209 states and 37465 transitions. [2022-11-03 02:32:18,083 INFO L78 Accepts]: Start accepts. Automaton has 9209 states and 37465 transitions. Word has length 22 [2022-11-03 02:32:18,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:18,083 INFO L495 AbstractCegarLoop]: Abstraction has 9209 states and 37465 transitions. [2022-11-03 02:32:18,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 9209 states and 37465 transitions. [2022-11-03 02:32:18,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:32:18,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:18,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:18,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:18,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:18,319 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:18,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1091490153, now seen corresponding path program 2 times [2022-11-03 02:32:18,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:18,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476554402] [2022-11-03 02:32:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:18,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:32:20,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:20,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476554402] [2022-11-03 02:32:20,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476554402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:20,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:20,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:32:20,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810376650] [2022-11-03 02:32:20,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:20,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:32:20,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:20,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:32:20,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:32:20,084 INFO L87 Difference]: Start difference. First operand 9209 states and 37465 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:22,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:22,543 INFO L93 Difference]: Finished difference Result 8624 states and 34963 transitions. [2022-11-03 02:32:22,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:32:22,545 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 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 24 [2022-11-03 02:32:22,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:22,683 INFO L225 Difference]: With dead ends: 8624 [2022-11-03 02:32:22,684 INFO L226 Difference]: Without dead ends: 8624 [2022-11-03 02:32:22,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:32:22,685 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 350 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:22,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 78 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 02:32:22,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8624 states. [2022-11-03 02:32:22,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8624 to 6284. [2022-11-03 02:32:22,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6284 states, 6279 states have (on average 3.9743589743589745) internal successors, (24955), 6283 states have internal predecessors, (24955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:22,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6284 states to 6284 states and 24955 transitions. [2022-11-03 02:32:22,950 INFO L78 Accepts]: Start accepts. Automaton has 6284 states and 24955 transitions. Word has length 24 [2022-11-03 02:32:22,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:22,951 INFO L495 AbstractCegarLoop]: Abstraction has 6284 states and 24955 transitions. [2022-11-03 02:32:22,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6284 states and 24955 transitions. [2022-11-03 02:32:22,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:32:22,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:22,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:22,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:32:22,958 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:22,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:22,959 INFO L85 PathProgramCache]: Analyzing trace with hash 531609092, now seen corresponding path program 1 times [2022-11-03 02:32:22,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:22,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541614986] [2022-11-03 02:32:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:22,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:32:26,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:26,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541614986] [2022-11-03 02:32:26,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541614986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:26,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:26,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:32:26,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731319087] [2022-11-03 02:32:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:26,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:32:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:26,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:32:26,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:32:26,043 INFO L87 Difference]: Start difference. First operand 6284 states and 24955 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:28,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:28,368 INFO L93 Difference]: Finished difference Result 6062 states and 24067 transitions. [2022-11-03 02:32:28,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:32:28,369 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 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 24 [2022-11-03 02:32:28,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:28,388 INFO L225 Difference]: With dead ends: 6062 [2022-11-03 02:32:28,388 INFO L226 Difference]: Without dead ends: 6062 [2022-11-03 02:32:28,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:32:28,389 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 254 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:28,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 80 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:32:28,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2022-11-03 02:32:28,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 5174. [2022-11-03 02:32:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5174 states, 5171 states have (on average 3.945851866176755) internal successors, (20404), 5173 states have internal predecessors, (20404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:28,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5174 states to 5174 states and 20404 transitions. [2022-11-03 02:32:28,583 INFO L78 Accepts]: Start accepts. Automaton has 5174 states and 20404 transitions. Word has length 24 [2022-11-03 02:32:28,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:28,584 INFO L495 AbstractCegarLoop]: Abstraction has 5174 states and 20404 transitions. [2022-11-03 02:32:28,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:28,584 INFO L276 IsEmpty]: Start isEmpty. Operand 5174 states and 20404 transitions. [2022-11-03 02:32:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:32:28,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:28,592 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:28,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:32:28,592 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:28,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:28,593 INFO L85 PathProgramCache]: Analyzing trace with hash -699782953, now seen corresponding path program 2 times [2022-11-03 02:32:28,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:28,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234657153] [2022-11-03 02:32:28,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:28,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:32:29,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:29,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234657153] [2022-11-03 02:32:29,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234657153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:29,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:29,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:32:29,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875988351] [2022-11-03 02:32:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:29,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:32:29,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:29,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:32:29,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:32:29,370 INFO L87 Difference]: Start difference. First operand 5174 states and 20404 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2022-11-03 02:32:31,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:31,426 INFO L93 Difference]: Finished difference Result 6539 states and 25983 transitions. [2022-11-03 02:32:31,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:32:31,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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 25 [2022-11-03 02:32:31,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:31,449 INFO L225 Difference]: With dead ends: 6539 [2022-11-03 02:32:31,449 INFO L226 Difference]: Without dead ends: 6539 [2022-11-03 02:32:31,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:32:31,450 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 60 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:31,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 69 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 02:32:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6539 states. [2022-11-03 02:32:31,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6539 to 5984. [2022-11-03 02:32:31,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5984 states, 5981 states have (on average 3.9730814245109514) internal successors, (23763), 5983 states have internal predecessors, (23763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5984 states to 5984 states and 23763 transitions. [2022-11-03 02:32:31,676 INFO L78 Accepts]: Start accepts. Automaton has 5984 states and 23763 transitions. Word has length 25 [2022-11-03 02:32:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:31,676 INFO L495 AbstractCegarLoop]: Abstraction has 5984 states and 23763 transitions. [2022-11-03 02:32:31,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2022-11-03 02:32:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5984 states and 23763 transitions. [2022-11-03 02:32:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 02:32:31,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:31,686 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] [2022-11-03 02:32:31,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:32:31,686 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:31,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:31,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1144070471, now seen corresponding path program 1 times [2022-11-03 02:32:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:31,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201638367] [2022-11-03 02:32:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:32:32,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:32,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201638367] [2022-11-03 02:32:32,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201638367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:32,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:32,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:32:32,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568052218] [2022-11-03 02:32:32,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:32,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:32:32,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:32,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:32:32,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:32:32,400 INFO L87 Difference]: Start difference. First operand 5984 states and 23763 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:33,919 INFO L93 Difference]: Finished difference Result 6024 states and 23876 transitions. [2022-11-03 02:32:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:32:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-03 02:32:33,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:33,940 INFO L225 Difference]: With dead ends: 6024 [2022-11-03 02:32:33,940 INFO L226 Difference]: Without dead ends: 4337 [2022-11-03 02:32:33,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:32:33,941 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 32 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:33,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 76 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 02:32:33,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4337 states. [2022-11-03 02:32:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4337 to 4337. [2022-11-03 02:32:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4337 states, 4334 states have (on average 3.9891555145362254) internal successors, (17289), 4336 states have internal predecessors, (17289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 17289 transitions. [2022-11-03 02:32:34,056 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 17289 transitions. Word has length 28 [2022-11-03 02:32:34,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:34,057 INFO L495 AbstractCegarLoop]: Abstraction has 4337 states and 17289 transitions. [2022-11-03 02:32:34,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:34,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 17289 transitions. [2022-11-03 02:32:34,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 02:32:34,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:34,065 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:34,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:32:34,065 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:34,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:34,066 INFO L85 PathProgramCache]: Analyzing trace with hash 913392880, now seen corresponding path program 1 times [2022-11-03 02:32:34,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:34,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661485988] [2022-11-03 02:32:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:34,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:36,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:32:36,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:36,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661485988] [2022-11-03 02:32:36,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661485988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:36,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:36,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:32:36,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21740413] [2022-11-03 02:32:36,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:36,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:32:36,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:36,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:32:36,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:32:36,431 INFO L87 Difference]: Start difference. First operand 4337 states and 17289 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 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) [2022-11-03 02:32:39,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:39,164 INFO L93 Difference]: Finished difference Result 10327 states and 41511 transitions. [2022-11-03 02:32:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:32:39,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 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 30 [2022-11-03 02:32:39,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:39,231 INFO L225 Difference]: With dead ends: 10327 [2022-11-03 02:32:39,231 INFO L226 Difference]: Without dead ends: 10031 [2022-11-03 02:32:39,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:32:39,233 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 300 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:39,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 132 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 02:32:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2022-11-03 02:32:39,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 5262. [2022-11-03 02:32:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5262 states, 5260 states have (on average 4.039543726235742) internal successors, (21248), 5261 states have internal predecessors, (21248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 21248 transitions. [2022-11-03 02:32:39,561 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 21248 transitions. Word has length 30 [2022-11-03 02:32:39,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:39,561 INFO L495 AbstractCegarLoop]: Abstraction has 5262 states and 21248 transitions. [2022-11-03 02:32:39,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 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) [2022-11-03 02:32:39,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 21248 transitions. [2022-11-03 02:32:39,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 02:32:39,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:39,576 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:39,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:32:39,577 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:39,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2129738320, now seen corresponding path program 2 times [2022-11-03 02:32:39,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:39,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993541193] [2022-11-03 02:32:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:32:42,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993541193] [2022-11-03 02:32:42,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993541193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:42,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:42,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:32:42,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508992916] [2022-11-03 02:32:42,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:42,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:32:42,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:42,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:32:42,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:32:42,376 INFO L87 Difference]: Start difference. First operand 5262 states and 21248 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 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) [2022-11-03 02:32:44,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:44,685 INFO L93 Difference]: Finished difference Result 12963 states and 52226 transitions. [2022-11-03 02:32:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:32:44,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 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 30 [2022-11-03 02:32:44,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:44,751 INFO L225 Difference]: With dead ends: 12963 [2022-11-03 02:32:44,751 INFO L226 Difference]: Without dead ends: 12815 [2022-11-03 02:32:44,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:32:44,753 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 387 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:44,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 96 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:32:44,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12815 states. [2022-11-03 02:32:45,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12815 to 6003. [2022-11-03 02:32:45,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6001 states have (on average 4.041493084485919) internal successors, (24253), 6002 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 24253 transitions. [2022-11-03 02:32:45,077 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 24253 transitions. Word has length 30 [2022-11-03 02:32:45,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:45,078 INFO L495 AbstractCegarLoop]: Abstraction has 6003 states and 24253 transitions. [2022-11-03 02:32:45,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 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) [2022-11-03 02:32:45,078 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 24253 transitions. [2022-11-03 02:32:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 02:32:45,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:45,094 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:45,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:32:45,095 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:45,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1060921347, now seen corresponding path program 3 times [2022-11-03 02:32:45,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:45,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026237799] [2022-11-03 02:32:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:45,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:32:45,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:45,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026237799] [2022-11-03 02:32:45,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026237799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:45,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109251767] [2022-11-03 02:32:45,621 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:32:45,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:45,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:45,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:45,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:32:46,142 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:32:46,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:32:46,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:32:46,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:32:46,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:32:46,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109251767] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:46,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1284545295] [2022-11-03 02:32:46,918 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) [2022-11-03 02:32:46,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:46,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-11-03 02:32:46,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736610740] [2022-11-03 02:32:46,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:46,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 02:32:46,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:46,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 02:32:46,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:32:46,921 INFO L87 Difference]: Start difference. First operand 6003 states and 24253 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:49,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:49,406 INFO L93 Difference]: Finished difference Result 24780 states and 96631 transitions. [2022-11-03 02:32:49,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 02:32:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 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 32 [2022-11-03 02:32:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:49,537 INFO L225 Difference]: With dead ends: 24780 [2022-11-03 02:32:49,537 INFO L226 Difference]: Without dead ends: 17852 [2022-11-03 02:32:49,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:32:49,539 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 607 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:49,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 669 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:32:49,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17852 states. [2022-11-03 02:32:49,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17852 to 11721. [2022-11-03 02:32:50,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11721 states, 11719 states have (on average 3.9014421025684785) internal successors, (45721), 11720 states have internal predecessors, (45721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:50,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11721 states to 11721 states and 45721 transitions. [2022-11-03 02:32:50,074 INFO L78 Accepts]: Start accepts. Automaton has 11721 states and 45721 transitions. Word has length 32 [2022-11-03 02:32:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:50,075 INFO L495 AbstractCegarLoop]: Abstraction has 11721 states and 45721 transitions. [2022-11-03 02:32:50,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 11721 states and 45721 transitions. [2022-11-03 02:32:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 02:32:50,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:50,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:50,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:50,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:50,303 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:50,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:50,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1334922160, now seen corresponding path program 1 times [2022-11-03 02:32:50,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:50,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533247058] [2022-11-03 02:32:50,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:50,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:32:50,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:50,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533247058] [2022-11-03 02:32:50,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533247058] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:50,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246256109] [2022-11-03 02:32:50,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:50,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:50,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:50,701 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:50,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:32:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:51,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:32:51,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:32:51,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:51,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:32:51,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246256109] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:51,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:32:51,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2022-11-03 02:32:51,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004739217] [2022-11-03 02:32:51,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:51,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:32:51,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:51,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:32:51,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:32:51,710 INFO L87 Difference]: Start difference. First operand 11721 states and 45721 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:52,359 INFO L93 Difference]: Finished difference Result 11869 states and 46087 transitions. [2022-11-03 02:32:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:32:52,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 34 [2022-11-03 02:32:52,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:52,420 INFO L225 Difference]: With dead ends: 11869 [2022-11-03 02:32:52,420 INFO L226 Difference]: Without dead ends: 11869 [2022-11-03 02:32:52,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:32:52,422 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 157 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:52,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 40 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:32:52,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11869 states. [2022-11-03 02:32:52,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11869 to 11869. [2022-11-03 02:32:52,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11869 states, 11867 states have (on average 3.883626864413921) internal successors, (46087), 11868 states have internal predecessors, (46087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11869 states to 11869 states and 46087 transitions. [2022-11-03 02:32:52,857 INFO L78 Accepts]: Start accepts. Automaton has 11869 states and 46087 transitions. Word has length 34 [2022-11-03 02:32:52,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:52,858 INFO L495 AbstractCegarLoop]: Abstraction has 11869 states and 46087 transitions. [2022-11-03 02:32:52,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 11869 states and 46087 transitions. [2022-11-03 02:32:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 02:32:52,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:52,881 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:52,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:53,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 02:32:53,082 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:32:53,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:53,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1598797548, now seen corresponding path program 4 times [2022-11-03 02:32:53,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:53,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530198885] [2022-11-03 02:32:53,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:53,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:32:56,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:56,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530198885] [2022-11-03 02:32:56,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530198885] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:57,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955148220] [2022-11-03 02:32:57,000 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:32:57,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:57,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:57,001 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:57,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:32:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:57,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 83 conjunts are in the unsatisfiable core [2022-11-03 02:32:57,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:57,776 INFO L356 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-03 02:32:57,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-03 02:32:57,898 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:32:57,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 02:32:58,076 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-03 02:32:58,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 02:32:58,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-03 02:32:59,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-03 02:32:59,285 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:32:59,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-03 02:32:59,653 INFO L356 Elim1Store]: treesize reduction 527, result has 6.4 percent of original size [2022-11-03 02:32:59,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 150 treesize of output 145 [2022-11-03 02:32:59,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 136 treesize of output 123 [2022-11-03 02:33:00,114 INFO L356 Elim1Store]: treesize reduction 289, result has 14.2 percent of original size [2022-11-03 02:33:00,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 31 case distinctions, treesize of input 146 treesize of output 175 [2022-11-03 02:33:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:33:00,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:33:00,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955148220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:00,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:33:00,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 23 [2022-11-03 02:33:00,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936367171] [2022-11-03 02:33:00,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:00,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:33:00,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:00,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:33:00,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:33:00,365 INFO L87 Difference]: Start difference. First operand 11869 states and 46087 transitions. Second operand has 14 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:03,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:03,457 INFO L93 Difference]: Finished difference Result 18071 states and 71772 transitions. [2022-11-03 02:33:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 02:33:03,458 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-03 02:33:03,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:03,562 INFO L225 Difference]: With dead ends: 18071 [2022-11-03 02:33:03,563 INFO L226 Difference]: Without dead ends: 18071 [2022-11-03 02:33:03,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=311, Invalid=879, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 02:33:03,568 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 341 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 232 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:03,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 242 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 561 Invalid, 0 Unknown, 232 Unchecked, 2.2s Time] [2022-11-03 02:33:03,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18071 states. [2022-11-03 02:33:03,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18071 to 13423. [2022-11-03 02:33:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13423 states, 13421 states have (on average 3.9219134192683107) internal successors, (52636), 13422 states have internal predecessors, (52636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:04,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13423 states to 13423 states and 52636 transitions. [2022-11-03 02:33:04,045 INFO L78 Accepts]: Start accepts. Automaton has 13423 states and 52636 transitions. Word has length 35 [2022-11-03 02:33:04,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:04,046 INFO L495 AbstractCegarLoop]: Abstraction has 13423 states and 52636 transitions. [2022-11-03 02:33:04,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:04,046 INFO L276 IsEmpty]: Start isEmpty. Operand 13423 states and 52636 transitions. [2022-11-03 02:33:04,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 02:33:04,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:04,062 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:04,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:04,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 02:33:04,263 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:33:04,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:04,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1598337198, now seen corresponding path program 5 times [2022-11-03 02:33:04,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:04,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369864760] [2022-11-03 02:33:04,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:04,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:33:07,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:07,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369864760] [2022-11-03 02:33:07,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369864760] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:07,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864055866] [2022-11-03 02:33:07,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:33:07,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:07,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:07,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:07,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:33:08,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 02:33:08,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:33:08,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-03 02:33:08,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:08,598 INFO L356 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-03 02:33:08,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-03 02:33:08,686 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:33:08,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 02:33:08,822 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-03 02:33:08,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 02:33:09,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-03 02:33:09,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-03 02:33:09,370 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:33:09,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-03 02:33:09,480 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:33:09,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-03 02:33:09,808 INFO L356 Elim1Store]: treesize reduction 700, result has 6.4 percent of original size [2022-11-03 02:33:09,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 162 treesize of output 160 [2022-11-03 02:33:09,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 148 treesize of output 133 [2022-11-03 02:33:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-03 02:33:10,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:33:10,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864055866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:10,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:33:10,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 20 [2022-11-03 02:33:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881632659] [2022-11-03 02:33:10,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:10,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:33:10,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:33:10,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:33:10,025 INFO L87 Difference]: Start difference. First operand 13423 states and 52636 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:12,182 INFO L93 Difference]: Finished difference Result 13904 states and 54671 transitions. [2022-11-03 02:33:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:33:12,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-03 02:33:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:12,254 INFO L225 Difference]: With dead ends: 13904 [2022-11-03 02:33:12,254 INFO L226 Difference]: Without dead ends: 13386 [2022-11-03 02:33:12,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2022-11-03 02:33:12,255 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 246 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:12,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 91 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 347 Invalid, 0 Unknown, 96 Unchecked, 1.6s Time] [2022-11-03 02:33:12,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13386 states. [2022-11-03 02:33:12,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13386 to 6880. [2022-11-03 02:33:12,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6880 states, 6879 states have (on average 3.828027329553714) internal successors, (26333), 6879 states have internal predecessors, (26333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6880 states to 6880 states and 26333 transitions. [2022-11-03 02:33:12,645 INFO L78 Accepts]: Start accepts. Automaton has 6880 states and 26333 transitions. Word has length 35 [2022-11-03 02:33:12,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:12,645 INFO L495 AbstractCegarLoop]: Abstraction has 6880 states and 26333 transitions. [2022-11-03 02:33:12,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:12,645 INFO L276 IsEmpty]: Start isEmpty. Operand 6880 states and 26333 transitions. [2022-11-03 02:33:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 02:33:12,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:12,661 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:12,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:12,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-03 02:33:12,862 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-03 02:33:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash -474220320, now seen corresponding path program 1 times [2022-11-03 02:33:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:12,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97562679] [2022-11-03 02:33:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 02:33:14,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:14,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97562679] [2022-11-03 02:33:14,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97562679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:14,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:14,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:33:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37248618] [2022-11-03 02:33:14,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:14,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:33:14,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:14,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:33:14,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:33:14,272 INFO L87 Difference]: Start difference. First operand 6880 states and 26333 transitions. Second operand has 11 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:15,961 INFO L93 Difference]: Finished difference Result 6855 states and 26253 transitions. [2022-11-03 02:33:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:33:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 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 47 [2022-11-03 02:33:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:15,962 INFO L225 Difference]: With dead ends: 6855 [2022-11-03 02:33:15,962 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:33:15,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:33:15,963 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 222 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:15,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 71 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 02:33:15,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:33:15,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:33:15,964 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) [2022-11-03 02:33:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:33:15,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2022-11-03 02:33:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:15,965 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:33:15,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:33:15,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:33:15,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (89 of 90 remaining) [2022-11-03 02:33:15,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (88 of 90 remaining) [2022-11-03 02:33:15,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (87 of 90 remaining) [2022-11-03 02:33:15,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (86 of 90 remaining) [2022-11-03 02:33:15,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (85 of 90 remaining) [2022-11-03 02:33:15,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (84 of 90 remaining) [2022-11-03 02:33:15,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (83 of 90 remaining) [2022-11-03 02:33:15,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (82 of 90 remaining) [2022-11-03 02:33:15,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (81 of 90 remaining) [2022-11-03 02:33:15,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (80 of 90 remaining) [2022-11-03 02:33:15,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (79 of 90 remaining) [2022-11-03 02:33:15,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (78 of 90 remaining) [2022-11-03 02:33:15,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (77 of 90 remaining) [2022-11-03 02:33:15,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (76 of 90 remaining) [2022-11-03 02:33:15,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (75 of 90 remaining) [2022-11-03 02:33:15,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (74 of 90 remaining) [2022-11-03 02:33:15,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (73 of 90 remaining) [2022-11-03 02:33:15,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (72 of 90 remaining) [2022-11-03 02:33:15,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (71 of 90 remaining) [2022-11-03 02:33:15,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (70 of 90 remaining) [2022-11-03 02:33:15,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (69 of 90 remaining) [2022-11-03 02:33:15,972 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (68 of 90 remaining) [2022-11-03 02:33:15,972 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (67 of 90 remaining) [2022-11-03 02:33:15,972 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (66 of 90 remaining) [2022-11-03 02:33:15,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (65 of 90 remaining) [2022-11-03 02:33:15,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (64 of 90 remaining) [2022-11-03 02:33:15,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (63 of 90 remaining) [2022-11-03 02:33:15,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (62 of 90 remaining) [2022-11-03 02:33:15,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (61 of 90 remaining) [2022-11-03 02:33:15,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (60 of 90 remaining) [2022-11-03 02:33:15,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (59 of 90 remaining) [2022-11-03 02:33:15,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (58 of 90 remaining) [2022-11-03 02:33:15,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (57 of 90 remaining) [2022-11-03 02:33:15,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (56 of 90 remaining) [2022-11-03 02:33:15,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (55 of 90 remaining) [2022-11-03 02:33:15,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (54 of 90 remaining) [2022-11-03 02:33:15,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (53 of 90 remaining) [2022-11-03 02:33:15,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (52 of 90 remaining) [2022-11-03 02:33:15,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (51 of 90 remaining) [2022-11-03 02:33:15,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (50 of 90 remaining) [2022-11-03 02:33:15,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (49 of 90 remaining) [2022-11-03 02:33:15,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (48 of 90 remaining) [2022-11-03 02:33:15,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (47 of 90 remaining) [2022-11-03 02:33:15,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (46 of 90 remaining) [2022-11-03 02:33:15,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (45 of 90 remaining) [2022-11-03 02:33:15,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (44 of 90 remaining) [2022-11-03 02:33:15,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (43 of 90 remaining) [2022-11-03 02:33:15,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (42 of 90 remaining) [2022-11-03 02:33:15,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (41 of 90 remaining) [2022-11-03 02:33:15,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (40 of 90 remaining) [2022-11-03 02:33:15,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (39 of 90 remaining) [2022-11-03 02:33:15,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (38 of 90 remaining) [2022-11-03 02:33:15,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (37 of 90 remaining) [2022-11-03 02:33:15,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (36 of 90 remaining) [2022-11-03 02:33:15,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (35 of 90 remaining) [2022-11-03 02:33:15,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (34 of 90 remaining) [2022-11-03 02:33:15,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (33 of 90 remaining) [2022-11-03 02:33:15,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (32 of 90 remaining) [2022-11-03 02:33:15,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 90 remaining) [2022-11-03 02:33:15,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 90 remaining) [2022-11-03 02:33:15,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 90 remaining) [2022-11-03 02:33:15,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 90 remaining) [2022-11-03 02:33:15,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 90 remaining) [2022-11-03 02:33:15,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 90 remaining) [2022-11-03 02:33:15,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 90 remaining) [2022-11-03 02:33:15,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 90 remaining) [2022-11-03 02:33:15,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 90 remaining) [2022-11-03 02:33:15,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 90 remaining) [2022-11-03 02:33:15,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 90 remaining) [2022-11-03 02:33:15,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (20 of 90 remaining) [2022-11-03 02:33:15,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (19 of 90 remaining) [2022-11-03 02:33:15,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (18 of 90 remaining) [2022-11-03 02:33:15,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (17 of 90 remaining) [2022-11-03 02:33:15,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (16 of 90 remaining) [2022-11-03 02:33:15,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (15 of 90 remaining) [2022-11-03 02:33:15,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (14 of 90 remaining) [2022-11-03 02:33:15,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (13 of 90 remaining) [2022-11-03 02:33:15,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (12 of 90 remaining) [2022-11-03 02:33:15,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (11 of 90 remaining) [2022-11-03 02:33:15,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (10 of 90 remaining) [2022-11-03 02:33:15,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (9 of 90 remaining) [2022-11-03 02:33:15,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (8 of 90 remaining) [2022-11-03 02:33:15,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 90 remaining) [2022-11-03 02:33:15,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 90 remaining) [2022-11-03 02:33:15,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 90 remaining) [2022-11-03 02:33:15,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 90 remaining) [2022-11-03 02:33:15,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (3 of 90 remaining) [2022-11-03 02:33:15,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (2 of 90 remaining) [2022-11-03 02:33:15,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (1 of 90 remaining) [2022-11-03 02:33:15,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (0 of 90 remaining) [2022-11-03 02:33:15,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 02:33:15,991 INFO L444 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:15,998 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:33:15,998 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:33:16,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:33:16 BasicIcfg [2022-11-03 02:33:16,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:33:16,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:33:16,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:33:16,003 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:33:16,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:27:44" (3/4) ... [2022-11-03 02:33:16,006 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:33:16,011 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-03 02:33:16,011 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-03 02:33:16,011 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-03 02:33:16,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2022-11-03 02:33:16,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-03 02:33:16,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:33:16,024 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:33:16,099 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:33:16,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:33:16,100 INFO L158 Benchmark]: Toolchain (without parser) took 334634.17ms. Allocated memory was 115.3MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 79.7MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-03 02:33:16,100 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:33:16,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.03ms. Allocated memory is still 115.3MB. Free memory was 79.6MB in the beginning and 88.4MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:33:16,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.07ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 84.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:33:16,101 INFO L158 Benchmark]: Boogie Preprocessor took 69.61ms. Allocated memory is still 115.3MB. Free memory was 84.8MB in the beginning and 81.1MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:33:16,102 INFO L158 Benchmark]: RCFGBuilder took 1957.68ms. Allocated memory is still 115.3MB. Free memory was 81.1MB in the beginning and 49.4MB in the end (delta: 31.6MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-11-03 02:33:16,102 INFO L158 Benchmark]: TraceAbstraction took 331773.03ms. Allocated memory was 115.3MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 88.5MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-03 02:33:16,103 INFO L158 Benchmark]: Witness Printer took 96.45ms. Allocated memory is still 5.3GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:33:16,105 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.03ms. Allocated memory is still 115.3MB. Free memory was 79.6MB in the beginning and 88.4MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.07ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 84.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.61ms. Allocated memory is still 115.3MB. Free memory was 84.8MB in the beginning and 81.1MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1957.68ms. Allocated memory is still 115.3MB. Free memory was 81.1MB in the beginning and 49.4MB in the end (delta: 31.6MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * TraceAbstraction took 331773.03ms. Allocated memory was 115.3MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 88.5MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 96.45ms. Allocated memory is still 5.3GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 246.8s, 511 PlacesBefore, 130 PlacesAfterwards, 528 TransitionsBefore, 132 TransitionsAfterwards, 13362 CoEnabledTransitionPairs, 15 FixpointIterations, 404 TrivialSequentialCompositions, 171 ConcurrentSequentialCompositions, 54 TrivialYvCompositions, 11 ConcurrentYvCompositions, 15 ChoiceCompositions, 655 TotalNumberOfCompositions, 94810 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30416, positive: 28814, positive conditional: 0, positive unconditional: 28814, negative: 1602, negative conditional: 0, negative unconditional: 1602, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11267, positive: 11014, positive conditional: 0, positive unconditional: 11014, negative: 253, negative conditional: 0, negative unconditional: 253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11267, positive: 9536, positive conditional: 0, positive unconditional: 9536, negative: 1731, negative conditional: 0, negative unconditional: 1731, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1731, positive: 1478, positive conditional: 0, positive unconditional: 1478, negative: 193, negative conditional: 0, negative unconditional: 193, unknown: 60, unknown conditional: 0, unknown unconditional: 60] , SemanticIndependenceRelation.Query Time [ms]: [ total: 180765, positive: 5503, positive conditional: 0, positive unconditional: 5503, negative: 22596, negative conditional: 0, negative unconditional: 22596, unknown: 152666, unknown conditional: 0, unknown unconditional: 152666] ], Cache Queries: [ total: 30416, positive: 17800, positive conditional: 0, positive unconditional: 17800, negative: 1349, negative conditional: 0, negative unconditional: 1349, unknown: 11267, unknown conditional: 0, unknown unconditional: 11267] , Statistics on independence cache: Total cache size (in pairs): 2627, Positive cache size: 2535, Positive conditional cache size: 0, Positive unconditional cache size: 2535, Negative cache size: 92, Negative conditional cache size: 0, Negative unconditional cache size: 92 - 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: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 109]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 110]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: 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 7 procedures, 622 locations, 90 error locations. Started 1 CEGAR loops. OverallTime: 331.5s, OverallIterations: 19, TraceHistogramMax: 3, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.4s, AutomataDifference: 37.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 250.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4225 SdHoareTripleChecker+Valid, 29.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4225 mSDsluCounter, 2976 SdHoareTripleChecker+Invalid, 26.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 328 IncrementalHoareTripleChecker+Unchecked, 3643 mSDsCounter, 949 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5918 IncrementalHoareTripleChecker+Invalid, 7195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 949 mSolverCounterUnsat, 895 mSDtfsCounter, 5918 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 465 GetRequests, 243 SyntacticMatches, 5 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52279occurred in iteration=0, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.9s AutomataMinimizationTime, 19 MinimizatonAttempts, 46055 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 30.0s InterpolantComputationTime, 643 NumberOfCodeBlocks, 628 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 723 ConstructedInterpolants, 3 QuantifiedInterpolants, 5994 SizeOfPredicates, 25 NumberOfNonLiveVariables, 3756 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 29 InterpolantComputations, 16 PerfectInterpolantSequences, 197/223 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 58 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 02:33:16,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f67cb6c6-46c3-4689-80fd-07ae0d3a7f04/bin/utaipan-7li7fVZpFI/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