./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/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_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/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_aa5281b3-96bb-464f-a2c4-814274fed81f/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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- 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 04:00:27,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:00:27,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:00:27,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:00:27,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:00:27,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:00:27,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:00:27,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:00:27,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:00:27,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:00:27,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:00:27,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:00:27,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:00:27,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:00:27,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:00:27,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:00:27,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:00:27,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:00:27,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:00:27,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:00:27,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:00:27,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:00:27,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:00:27,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:00:27,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:00:27,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:00:27,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:00:27,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:00:27,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:00:27,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:00:27,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:00:27,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:00:27,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:00:27,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:00:27,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:00:27,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:00:27,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:00:27,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:00:27,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:00:27,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:00:27,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:00:27,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 04:00:27,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:00:27,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:00:27,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:00:27,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:00:27,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:00:27,967 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:00:27,968 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:00:27,968 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:00:27,968 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:00:27,968 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:00:27,969 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:00:27,969 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:00:27,969 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:00:27,969 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:00:27,970 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:00:27,970 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:00:27,970 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:00:27,970 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:00:27,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:00:27,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:00:27,972 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 04:00:27,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:00:27,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:00:27,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:00:27,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:00:27,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:00:27,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:00:27,973 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 04:00:27,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:00:27,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:00:27,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:00:27,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:00:27,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:00:27,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:00:27,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:00:27,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:00:27,976 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:00:27,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:00:27,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:00:27,976 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:00:27,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:00:27,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:00:27,977 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:00:27,977 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_aa5281b3-96bb-464f-a2c4-814274fed81f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2022-11-03 04:00:28,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:00:28,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:00:28,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:00:28,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:00:28,232 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:00:28,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-03 04:00:28,329 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/data/4a877927d/a2c86411a0d046ecb34340f95aa29075/FLAG66f6aa9e0 [2022-11-03 04:00:28,984 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:00:28,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-03 04:00:29,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/data/4a877927d/a2c86411a0d046ecb34340f95aa29075/FLAG66f6aa9e0 [2022-11-03 04:00:29,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/data/4a877927d/a2c86411a0d046ecb34340f95aa29075 [2022-11-03 04:00:29,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:00:29,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:00:29,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:00:29,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:00:29,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:00:29,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:00:29" (1/1) ... [2022-11-03 04:00:29,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785900f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:29, skipping insertion in model container [2022-11-03 04:00:29,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:00:29" (1/1) ... [2022-11-03 04:00:29,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:00:29,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:00:30,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:00:30,042 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:00:30,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:00:30,175 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:00:30,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30 WrapperNode [2022-11-03 04:00:30,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:00:30,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:00:30,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:00:30,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:00:30,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,274 INFO L138 Inliner]: procedures = 369, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 237 [2022-11-03 04:00:30,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:00:30,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:00:30,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:00:30,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:00:30,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,318 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:00:30,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:00:30,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:00:30,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:00:30,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (1/1) ... [2022-11-03 04:00:30,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:00:30,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:30,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:00:30,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:00:30,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:00:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:00:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:00:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:00:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:00:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 04:00:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:00:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:00:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:00:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 04:00:30,445 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 04:00:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:00:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:00:30,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:00:30,447 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 04:00:30,680 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:00:30,682 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:00:31,313 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:00:31,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:00:31,322 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 04:00:31,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:31 BoogieIcfgContainer [2022-11-03 04:00:31,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:00:31,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:00:31,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:00:31,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:00:31,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:00:29" (1/3) ... [2022-11-03 04:00:31,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495e7470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:00:31, skipping insertion in model container [2022-11-03 04:00:31,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:30" (2/3) ... [2022-11-03 04:00:31,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495e7470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:00:31, skipping insertion in model container [2022-11-03 04:00:31,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:31" (3/3) ... [2022-11-03 04:00:31,338 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2022-11-03 04:00:31,351 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 04:00:31,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:00:31,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-03 04:00:31,362 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 04:00:31,496 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 04:00:31,539 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 04:00:31,551 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 274 transitions, 553 flow [2022-11-03 04:00:31,554 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 274 transitions, 553 flow [2022-11-03 04:00:31,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 274 transitions, 553 flow [2022-11-03 04:00:31,756 INFO L130 PetriNetUnfolder]: 6/273 cut-off events. [2022-11-03 04:00:31,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 04:00:31,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 6/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 430 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-03 04:00:31,783 INFO L118 LiptonReduction]: Number of co-enabled transitions 19550 [2022-11-03 04:01:42,754 WARN L234 SmtUtils]: Spent 8.10s on a formula simplification. DAG size of input: 146 DAG size of output: 142 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:01:54,073 WARN L234 SmtUtils]: Spent 8.87s on a formula simplification. DAG size of input: 146 DAG size of output: 142 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:01:56,467 INFO L133 LiptonReduction]: Checked pairs total: 108439 [2022-11-03 04:01:56,467 INFO L135 LiptonReduction]: Total number of compositions: 167 [2022-11-03 04:01:56,475 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 122 transitions, 249 flow [2022-11-03 04:01:56,573 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3154 states, 3082 states have (on average 2.04510058403634) internal successors, (6303), 3153 states have internal predecessors, (6303), 0 states have call successors, (0), 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 04:01:56,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:01:56,596 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;@18dc6167, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:01:56,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-03 04:01:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 3154 states, 3082 states have (on average 2.04510058403634) internal successors, (6303), 3153 states have internal predecessors, (6303), 0 states have call successors, (0), 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 04:01:56,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-03 04:01:56,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:56,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-03 04:01:56,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:01:56,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:56,616 INFO L85 PathProgramCache]: Analyzing trace with hash 27555, now seen corresponding path program 1 times [2022-11-03 04:01:56,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:56,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510565317] [2022-11-03 04:01:56,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:56,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:56,779 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 04:01:56,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:56,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510565317] [2022-11-03 04:01:56,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510565317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:56,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:56,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 04:01:56,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889525228] [2022-11-03 04:01:56,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:56,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:01:56,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:56,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:01:56,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:01:56,820 INFO L87 Difference]: Start difference. First operand has 3154 states, 3082 states have (on average 2.04510058403634) internal successors, (6303), 3153 states have internal predecessors, (6303), 0 states have call successors, (0), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 04:01:57,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:57,035 INFO L93 Difference]: Finished difference Result 3151 states and 6300 transitions. [2022-11-03 04:01:57,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:01:57,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-11-03 04:01:57,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:57,066 INFO L225 Difference]: With dead ends: 3151 [2022-11-03 04:01:57,066 INFO L226 Difference]: Without dead ends: 3151 [2022-11-03 04:01:57,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 04:01:57,070 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:57,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:57,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2022-11-03 04:01:57,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 3151. [2022-11-03 04:01:57,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3151 states, 3082 states have (on average 2.044127190136275) internal successors, (6300), 3150 states have internal predecessors, (6300), 0 states have call successors, (0), 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 04:01:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3151 states to 3151 states and 6300 transitions. [2022-11-03 04:01:57,260 INFO L78 Accepts]: Start accepts. Automaton has 3151 states and 6300 transitions. Word has length 2 [2022-11-03 04:01:57,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:57,261 INFO L495 AbstractCegarLoop]: Abstraction has 3151 states and 6300 transitions. [2022-11-03 04:01:57,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 04:01:57,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3151 states and 6300 transitions. [2022-11-03 04:01:57,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 04:01:57,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:57,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:57,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:01:57,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:01:57,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:57,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1287733599, now seen corresponding path program 1 times [2022-11-03 04:01:57,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:57,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11929459] [2022-11-03 04:01:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:57,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:57,453 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 04:01:57,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:57,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11929459] [2022-11-03 04:01:57,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11929459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:57,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:57,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:01:57,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241068326] [2022-11-03 04:01:57,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:57,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:01:57,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:57,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:01:57,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:01:57,457 INFO L87 Difference]: Start difference. First operand 3151 states and 6300 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 04:01:57,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:57,847 INFO L93 Difference]: Finished difference Result 6207 states and 12411 transitions. [2022-11-03 04:01:57,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:01:57,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-11-03 04:01:57,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:57,877 INFO L225 Difference]: With dead ends: 6207 [2022-11-03 04:01:57,878 INFO L226 Difference]: Without dead ends: 6207 [2022-11-03 04:01:57,878 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 04:01:57,879 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 111 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:57,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 160 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:01:57,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6207 states. [2022-11-03 04:01:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6207 to 3198. [2022-11-03 04:01:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 3129 states have (on average 2.043464365612017) internal successors, (6394), 3197 states have internal predecessors, (6394), 0 states have call successors, (0), 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 04:01:58,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 6394 transitions. [2022-11-03 04:01:58,002 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 6394 transitions. Word has length 11 [2022-11-03 04:01:58,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:58,003 INFO L495 AbstractCegarLoop]: Abstraction has 3198 states and 6394 transitions. [2022-11-03 04:01:58,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 04:01:58,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 6394 transitions. [2022-11-03 04:01:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 04:01:58,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:58,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:58,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:01:58,005 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:01:58,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:58,006 INFO L85 PathProgramCache]: Analyzing trace with hash 681353701, now seen corresponding path program 1 times [2022-11-03 04:01:58,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:58,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518096909] [2022-11-03 04:01:58,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:58,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:58,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:58,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:58,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518096909] [2022-11-03 04:01:58,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518096909] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:01:58,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438866110] [2022-11-03 04:01:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:58,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:01:58,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:01:58,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:01:58,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:01:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:58,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:01:58,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:58,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:01:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:58,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438866110] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:01:58,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [895889481] [2022-11-03 04:01:58,570 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 04:01:58,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:01:58,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-03 04:01:58,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322835994] [2022-11-03 04:01:58,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:01:58,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:01:58,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:58,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:01:58,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:01:58,574 INFO L87 Difference]: Start difference. First operand 3198 states and 6394 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:01:59,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:59,690 INFO L93 Difference]: Finished difference Result 12367 states and 24728 transitions. [2022-11-03 04:01:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:01:59,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 04:01:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:59,834 INFO L225 Difference]: With dead ends: 12367 [2022-11-03 04:01:59,834 INFO L226 Difference]: Without dead ends: 12367 [2022-11-03 04:01:59,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:01:59,836 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 666 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:59,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 380 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 04:01:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-11-03 04:02:00,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 10929. [2022-11-03 04:02:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10929 states, 10860 states have (on average 2.1420810313075505) internal successors, (23263), 10928 states have internal predecessors, (23263), 0 states have call successors, (0), 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 04:02:00,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10929 states to 10929 states and 23263 transitions. [2022-11-03 04:02:00,203 INFO L78 Accepts]: Start accepts. Automaton has 10929 states and 23263 transitions. Word has length 12 [2022-11-03 04:02:00,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:00,203 INFO L495 AbstractCegarLoop]: Abstraction has 10929 states and 23263 transitions. [2022-11-03 04:02:00,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 10929 states and 23263 transitions. [2022-11-03 04:02:00,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 04:02:00,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:00,206 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:00,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:00,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:00,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:00,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:00,421 INFO L85 PathProgramCache]: Analyzing trace with hash 222261153, now seen corresponding path program 2 times [2022-11-03 04:02:00,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:00,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590484846] [2022-11-03 04:02:00,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:00,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:02:00,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:00,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590484846] [2022-11-03 04:02:00,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590484846] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:02:00,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379868227] [2022-11-03 04:02:00,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:02:00,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:00,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:00,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:00,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:02:01,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 04:02:01,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:02:01,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:01,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:01,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:02:01,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:01,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 04:02:01,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:01,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:01,339 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:02:01,339 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 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:02:01,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:01,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:01,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:01,406 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:02:01,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-03 04:02:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:02:01,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:01,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379868227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:01,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:02:01,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2022-11-03 04:02:01,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997511630] [2022-11-03 04:02:01,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:01,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:02:01,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:01,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:02:01,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:02:01,471 INFO L87 Difference]: Start difference. First operand 10929 states and 23263 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:02,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:02,921 INFO L93 Difference]: Finished difference Result 11652 states and 24718 transitions. [2022-11-03 04:02:02,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:02,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 04:02:02,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:02,961 INFO L225 Difference]: With dead ends: 11652 [2022-11-03 04:02:02,961 INFO L226 Difference]: Without dead ends: 11652 [2022-11-03 04:02:02,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:02:02,966 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 207 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:02,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 69 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 04:02:03,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11652 states. [2022-11-03 04:02:03,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11652 to 11652. [2022-11-03 04:02:03,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11652 states, 11583 states have (on average 2.1339894673228006) internal successors, (24718), 11651 states have internal predecessors, (24718), 0 states have call successors, (0), 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 04:02:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11652 states to 11652 states and 24718 transitions. [2022-11-03 04:02:03,374 INFO L78 Accepts]: Start accepts. Automaton has 11652 states and 24718 transitions. Word has length 15 [2022-11-03 04:02:03,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:03,375 INFO L495 AbstractCegarLoop]: Abstraction has 11652 states and 24718 transitions. [2022-11-03 04:02:03,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:03,375 INFO L276 IsEmpty]: Start isEmpty. Operand 11652 states and 24718 transitions. [2022-11-03 04:02:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 04:02:03,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:03,376 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:03,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:03,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:03,593 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:03,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:03,594 INFO L85 PathProgramCache]: Analyzing trace with hash -988764233, now seen corresponding path program 1 times [2022-11-03 04:02:03,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:03,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699224027] [2022-11-03 04:02:03,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:03,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:02:04,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:04,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699224027] [2022-11-03 04:02:04,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699224027] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:02:04,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83389848] [2022-11-03 04:02:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:04,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:04,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:04,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:04,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:02:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:04,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:02:04,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:02:04,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:02:04,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83389848] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:04,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [114723729] [2022-11-03 04:02:04,505 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 04:02:04,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:02:04,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-03 04:02:04,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806396069] [2022-11-03 04:02:04,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:02:04,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:02:04,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:04,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:02:04,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:02:04,516 INFO L87 Difference]: Start difference. First operand 11652 states and 24718 transitions. Second operand has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:06,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:06,382 INFO L93 Difference]: Finished difference Result 32533 states and 65054 transitions. [2022-11-03 04:02:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:02:06,383 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 04:02:06,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:06,482 INFO L225 Difference]: With dead ends: 32533 [2022-11-03 04:02:06,482 INFO L226 Difference]: Without dead ends: 32533 [2022-11-03 04:02:06,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:02:06,483 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 1665 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:06,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 895 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-03 04:02:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32533 states. [2022-11-03 04:02:07,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32533 to 28194. [2022-11-03 04:02:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28194 states, 28125 states have (on average 2.1558755555555558) internal successors, (60634), 28193 states have internal predecessors, (60634), 0 states have call successors, (0), 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 04:02:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28194 states to 28194 states and 60634 transitions. [2022-11-03 04:02:07,362 INFO L78 Accepts]: Start accepts. Automaton has 28194 states and 60634 transitions. Word has length 16 [2022-11-03 04:02:07,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:07,362 INFO L495 AbstractCegarLoop]: Abstraction has 28194 states and 60634 transitions. [2022-11-03 04:02:07,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:07,362 INFO L276 IsEmpty]: Start isEmpty. Operand 28194 states and 60634 transitions. [2022-11-03 04:02:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 04:02:07,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:07,363 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:07,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:07,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5281b3-96bb-464f-a2c4-814274fed81f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:07,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:07,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:07,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2001190455, now seen corresponding path program 2 times [2022-11-03 04:02:07,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:07,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751547163] [2022-11-03 04:02:07,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:07,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:09,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:09,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751547163] [2022-11-03 04:02:09,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751547163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:09,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:09,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:02:09,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184879638] [2022-11-03 04:02:09,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:09,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:09,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:09,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:09,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:09,068 INFO L87 Difference]: Start difference. First operand 28194 states and 60634 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 04:02:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:10,576 INFO L93 Difference]: Finished difference Result 31050 states and 66751 transitions. [2022-11-03 04:02:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:02:10,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 22 [2022-11-03 04:02:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:10,671 INFO L225 Difference]: With dead ends: 31050 [2022-11-03 04:02:10,671 INFO L226 Difference]: Without dead ends: 31050 [2022-11-03 04:02:10,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:10,672 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 126 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:10,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 82 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 04:02:10,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31050 states. [2022-11-03 04:02:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31050 to 30452. [2022-11-03 04:02:11,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30452 states, 30383 states have (on average 2.1549550735608727) internal successors, (65474), 30451 states have internal predecessors, (65474), 0 states have call successors, (0), 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 04:02:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30452 states to 30452 states and 65474 transitions. [2022-11-03 04:02:11,430 INFO L78 Accepts]: Start accepts. Automaton has 30452 states and 65474 transitions. Word has length 22 [2022-11-03 04:02:11,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:11,432 INFO L495 AbstractCegarLoop]: Abstraction has 30452 states and 65474 transitions. [2022-11-03 04:02:11,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 04:02:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 30452 states and 65474 transitions. [2022-11-03 04:02:11,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:11,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:11,444 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:11,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:02:11,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1544563703, now seen corresponding path program 1 times [2022-11-03 04:02:11,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:11,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854822868] [2022-11-03 04:02:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:13,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:13,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854822868] [2022-11-03 04:02:13,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854822868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:13,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:13,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:13,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523185943] [2022-11-03 04:02:13,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:13,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:13,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:13,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:13,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:13,205 INFO L87 Difference]: Start difference. First operand 30452 states and 65474 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:16,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:16,380 INFO L93 Difference]: Finished difference Result 60950 states and 131088 transitions. [2022-11-03 04:02:16,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 04:02:16,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:16,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:16,583 INFO L225 Difference]: With dead ends: 60950 [2022-11-03 04:02:16,583 INFO L226 Difference]: Without dead ends: 60950 [2022-11-03 04:02:16,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:02:16,584 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 544 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:16,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 397 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 04:02:16,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60950 states. [2022-11-03 04:02:17,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60950 to 31212. [2022-11-03 04:02:17,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31212 states, 31143 states have (on average 2.152458016247632) internal successors, (67034), 31211 states have internal predecessors, (67034), 0 states have call successors, (0), 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 04:02:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31212 states to 31212 states and 67034 transitions. [2022-11-03 04:02:17,596 INFO L78 Accepts]: Start accepts. Automaton has 31212 states and 67034 transitions. Word has length 26 [2022-11-03 04:02:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:17,597 INFO L495 AbstractCegarLoop]: Abstraction has 31212 states and 67034 transitions. [2022-11-03 04:02:17,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:17,597 INFO L276 IsEmpty]: Start isEmpty. Operand 31212 states and 67034 transitions. [2022-11-03 04:02:17,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:17,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:17,598 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:17,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:02:17,599 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:17,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:17,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1733880529, now seen corresponding path program 1 times [2022-11-03 04:02:17,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:17,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407398297] [2022-11-03 04:02:17,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:17,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:19,173 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:19,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:19,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407398297] [2022-11-03 04:02:19,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407398297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:19,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:19,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:19,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249183476] [2022-11-03 04:02:19,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:19,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:19,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:19,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:19,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:19,175 INFO L87 Difference]: Start difference. First operand 31212 states and 67034 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:23,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:23,033 INFO L93 Difference]: Finished difference Result 59947 states and 128866 transitions. [2022-11-03 04:02:23,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 04:02:23,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:23,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:23,312 INFO L225 Difference]: With dead ends: 59947 [2022-11-03 04:02:23,312 INFO L226 Difference]: Without dead ends: 59947 [2022-11-03 04:02:23,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:02:23,313 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 529 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:23,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 382 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:02:23,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59947 states. [2022-11-03 04:02:23,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59947 to 31462. [2022-11-03 04:02:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31462 states, 31393 states have (on average 2.1512439078775523) internal successors, (67534), 31461 states have internal predecessors, (67534), 0 states have call successors, (0), 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 04:02:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31462 states to 31462 states and 67534 transitions. [2022-11-03 04:02:24,059 INFO L78 Accepts]: Start accepts. Automaton has 31462 states and 67534 transitions. Word has length 26 [2022-11-03 04:02:24,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:24,059 INFO L495 AbstractCegarLoop]: Abstraction has 31462 states and 67534 transitions. [2022-11-03 04:02:24,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:24,059 INFO L276 IsEmpty]: Start isEmpty. Operand 31462 states and 67534 transitions. [2022-11-03 04:02:24,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:24,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:24,060 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:24,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:02:24,060 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:24,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:24,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1678266933, now seen corresponding path program 2 times [2022-11-03 04:02:24,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:24,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645545820] [2022-11-03 04:02:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:24,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:25,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:25,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645545820] [2022-11-03 04:02:25,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645545820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:25,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:25,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:25,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082224849] [2022-11-03 04:02:25,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:25,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:25,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:25,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:25,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:25,568 INFO L87 Difference]: Start difference. First operand 31462 states and 67534 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:27,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:27,544 INFO L93 Difference]: Finished difference Result 34220 states and 73827 transitions. [2022-11-03 04:02:27,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:02:27,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:27,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:27,612 INFO L225 Difference]: With dead ends: 34220 [2022-11-03 04:02:27,612 INFO L226 Difference]: Without dead ends: 34220 [2022-11-03 04:02:27,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:02:27,613 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 329 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:27,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 402 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 04:02:27,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34220 states. [2022-11-03 04:02:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34220 to 31512. [2022-11-03 04:02:28,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31512 states, 31443 states have (on average 2.151003402983176) internal successors, (67634), 31511 states have internal predecessors, (67634), 0 states have call successors, (0), 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 04:02:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31512 states to 31512 states and 67634 transitions. [2022-11-03 04:02:28,277 INFO L78 Accepts]: Start accepts. Automaton has 31512 states and 67634 transitions. Word has length 26 [2022-11-03 04:02:28,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:28,278 INFO L495 AbstractCegarLoop]: Abstraction has 31512 states and 67634 transitions. [2022-11-03 04:02:28,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:28,278 INFO L276 IsEmpty]: Start isEmpty. Operand 31512 states and 67634 transitions. [2022-11-03 04:02:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:28,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:28,279 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:28,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 04:02:28,279 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:28,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1672183803, now seen corresponding path program 3 times [2022-11-03 04:02:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:28,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017824528] [2022-11-03 04:02:28,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:28,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:29,701 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:29,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:29,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017824528] [2022-11-03 04:02:29,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017824528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:29,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:29,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:29,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813140595] [2022-11-03 04:02:29,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:29,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:29,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:29,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:29,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:29,702 INFO L87 Difference]: Start difference. First operand 31512 states and 67634 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:32,812 INFO L93 Difference]: Finished difference Result 34564 states and 74551 transitions. [2022-11-03 04:02:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:02:32,813 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:32,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:32,885 INFO L225 Difference]: With dead ends: 34564 [2022-11-03 04:02:32,885 INFO L226 Difference]: Without dead ends: 34564 [2022-11-03 04:02:32,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:02:32,886 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 308 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:32,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 408 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 04:02:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34564 states. [2022-11-03 04:02:33,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34564 to 31562. [2022-11-03 04:02:33,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31562 states, 31493 states have (on average 2.150763661766107) internal successors, (67734), 31561 states have internal predecessors, (67734), 0 states have call successors, (0), 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 04:02:33,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31562 states to 31562 states and 67734 transitions. [2022-11-03 04:02:33,620 INFO L78 Accepts]: Start accepts. Automaton has 31562 states and 67734 transitions. Word has length 26 [2022-11-03 04:02:33,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:33,621 INFO L495 AbstractCegarLoop]: Abstraction has 31562 states and 67734 transitions. [2022-11-03 04:02:33,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 31562 states and 67734 transitions. [2022-11-03 04:02:33,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:33,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:33,622 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:33,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 04:02:33,623 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:33,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:33,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1482713043, now seen corresponding path program 4 times [2022-11-03 04:02:33,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:33,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277562310] [2022-11-03 04:02:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:33,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:34,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:34,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277562310] [2022-11-03 04:02:34,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277562310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:34,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:34,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:34,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191658024] [2022-11-03 04:02:34,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:34,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:34,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:34,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:34,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:34,944 INFO L87 Difference]: Start difference. First operand 31562 states and 67734 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:38,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:38,163 INFO L93 Difference]: Finished difference Result 34907 states and 75274 transitions. [2022-11-03 04:02:38,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:02:38,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:38,229 INFO L225 Difference]: With dead ends: 34907 [2022-11-03 04:02:38,230 INFO L226 Difference]: Without dead ends: 34907 [2022-11-03 04:02:38,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:02:38,231 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 286 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:38,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 409 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 04:02:38,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34907 states. [2022-11-03 04:02:38,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34907 to 31612. [2022-11-03 04:02:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31612 states, 31543 states have (on average 2.1505246805947436) internal successors, (67834), 31611 states have internal predecessors, (67834), 0 states have call successors, (0), 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 04:02:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31612 states to 31612 states and 67834 transitions. [2022-11-03 04:02:38,769 INFO L78 Accepts]: Start accepts. Automaton has 31612 states and 67834 transitions. Word has length 26 [2022-11-03 04:02:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:38,772 INFO L495 AbstractCegarLoop]: Abstraction has 31612 states and 67834 transitions. [2022-11-03 04:02:38,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:38,772 INFO L276 IsEmpty]: Start isEmpty. Operand 31612 states and 67834 transitions. [2022-11-03 04:02:38,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:38,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:38,773 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:38,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 04:02:38,774 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:38,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash 123618851, now seen corresponding path program 5 times [2022-11-03 04:02:38,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:38,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209546441] [2022-11-03 04:02:38,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:38,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:40,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:40,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209546441] [2022-11-03 04:02:40,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209546441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:40,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:40,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:40,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698006098] [2022-11-03 04:02:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:40,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:40,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:40,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:40,121 INFO L87 Difference]: Start difference. First operand 31612 states and 67834 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:42,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:42,261 INFO L93 Difference]: Finished difference Result 35251 states and 75998 transitions. [2022-11-03 04:02:42,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:02:42,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:42,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:42,328 INFO L225 Difference]: With dead ends: 35251 [2022-11-03 04:02:42,328 INFO L226 Difference]: Without dead ends: 35251 [2022-11-03 04:02:42,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-11-03 04:02:42,329 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 260 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:42,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 396 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 04:02:42,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35251 states. [2022-11-03 04:02:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35251 to 31662. [2022-11-03 04:02:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31662 states, 31593 states have (on average 2.1502864558604755) internal successors, (67934), 31661 states have internal predecessors, (67934), 0 states have call successors, (0), 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 04:02:42,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31662 states to 31662 states and 67934 transitions. [2022-11-03 04:02:42,966 INFO L78 Accepts]: Start accepts. Automaton has 31662 states and 67934 transitions. Word has length 26 [2022-11-03 04:02:42,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:42,966 INFO L495 AbstractCegarLoop]: Abstraction has 31662 states and 67934 transitions. [2022-11-03 04:02:42,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:42,966 INFO L276 IsEmpty]: Start isEmpty. Operand 31662 states and 67934 transitions. [2022-11-03 04:02:42,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:42,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:42,967 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:42,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 04:02:42,968 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:42,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:42,969 INFO L85 PathProgramCache]: Analyzing trace with hash -751311121, now seen corresponding path program 6 times [2022-11-03 04:02:42,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:42,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159565932] [2022-11-03 04:02:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:42,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:44,100 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:44,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:44,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159565932] [2022-11-03 04:02:44,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159565932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:44,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:44,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:44,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464321022] [2022-11-03 04:02:44,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:44,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:44,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:44,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:44,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:44,102 INFO L87 Difference]: Start difference. First operand 31662 states and 67934 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:47,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:47,463 INFO L93 Difference]: Finished difference Result 64581 states and 139093 transitions. [2022-11-03 04:02:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 04:02:47,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:47,594 INFO L225 Difference]: With dead ends: 64581 [2022-11-03 04:02:47,594 INFO L226 Difference]: Without dead ends: 64581 [2022-11-03 04:02:47,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:02:47,595 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 493 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 3010 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:47,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 658 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3010 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 04:02:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64581 states. [2022-11-03 04:02:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64581 to 31712. [2022-11-03 04:02:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31712 states, 31643 states have (on average 2.150048983977499) internal successors, (68034), 31711 states have internal predecessors, (68034), 0 states have call successors, (0), 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 04:02:48,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31712 states to 31712 states and 68034 transitions. [2022-11-03 04:02:48,474 INFO L78 Accepts]: Start accepts. Automaton has 31712 states and 68034 transitions. Word has length 26 [2022-11-03 04:02:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:48,475 INFO L495 AbstractCegarLoop]: Abstraction has 31712 states and 68034 transitions. [2022-11-03 04:02:48,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 31712 states and 68034 transitions. [2022-11-03 04:02:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:48,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:48,476 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:48,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 04:02:48,476 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:48,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:48,477 INFO L85 PathProgramCache]: Analyzing trace with hash -940627947, now seen corresponding path program 2 times [2022-11-03 04:02:48,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:48,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046467646] [2022-11-03 04:02:48,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:48,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:49,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:49,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046467646] [2022-11-03 04:02:49,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046467646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:49,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:49,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:49,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522994121] [2022-11-03 04:02:49,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:49,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:49,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:49,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:49,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:49,507 INFO L87 Difference]: Start difference. First operand 31712 states and 68034 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:52,846 INFO L93 Difference]: Finished difference Result 62307 states and 134082 transitions. [2022-11-03 04:02:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 04:02:52,846 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:52,978 INFO L225 Difference]: With dead ends: 62307 [2022-11-03 04:02:52,978 INFO L226 Difference]: Without dead ends: 62307 [2022-11-03 04:02:52,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:02:52,979 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 434 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 2843 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:52,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 617 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2843 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 04:02:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62307 states. [2022-11-03 04:02:53,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62307 to 31606. [2022-11-03 04:02:53,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31606 states, 31537 states have (on average 2.151694834638678) internal successors, (67858), 31605 states have internal predecessors, (67858), 0 states have call successors, (0), 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 04:02:53,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31606 states to 31606 states and 67858 transitions. [2022-11-03 04:02:53,804 INFO L78 Accepts]: Start accepts. Automaton has 31606 states and 67858 transitions. Word has length 26 [2022-11-03 04:02:53,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:53,804 INFO L495 AbstractCegarLoop]: Abstraction has 31606 states and 67858 transitions. [2022-11-03 04:02:53,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:53,805 INFO L276 IsEmpty]: Start isEmpty. Operand 31606 states and 67858 transitions. [2022-11-03 04:02:53,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:53,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:53,806 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:53,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 04:02:53,806 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:53,806 INFO L85 PathProgramCache]: Analyzing trace with hash 904000109, now seen corresponding path program 7 times [2022-11-03 04:02:53,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:53,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328716551] [2022-11-03 04:02:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:53,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:54,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:54,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328716551] [2022-11-03 04:02:54,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328716551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:54,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:54,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:54,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703936087] [2022-11-03 04:02:54,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:54,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:54,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:54,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:54,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:54,804 INFO L87 Difference]: Start difference. First operand 31606 states and 67858 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:57,706 INFO L93 Difference]: Finished difference Result 60848 states and 130831 transitions. [2022-11-03 04:02:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:02:57,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:02:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:57,822 INFO L225 Difference]: With dead ends: 60848 [2022-11-03 04:02:57,822 INFO L226 Difference]: Without dead ends: 60848 [2022-11-03 04:02:57,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:02:57,823 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 385 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 2663 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:57,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 674 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2663 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 04:02:57,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60848 states. [2022-11-03 04:02:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60848 to 30907. [2022-11-03 04:02:58,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30907 states, 30839 states have (on average 2.150977658160122) internal successors, (66334), 30906 states have internal predecessors, (66334), 0 states have call successors, (0), 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 04:02:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30907 states to 30907 states and 66334 transitions. [2022-11-03 04:02:58,459 INFO L78 Accepts]: Start accepts. Automaton has 30907 states and 66334 transitions. Word has length 26 [2022-11-03 04:02:58,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:58,459 INFO L495 AbstractCegarLoop]: Abstraction has 30907 states and 66334 transitions. [2022-11-03 04:02:58,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:02:58,459 INFO L276 IsEmpty]: Start isEmpty. Operand 30907 states and 66334 transitions. [2022-11-03 04:02:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:02:58,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:58,460 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:58,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 04:02:58,460 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:02:58,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash 714683283, now seen corresponding path program 3 times [2022-11-03 04:02:58,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:58,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453663637] [2022-11-03 04:02:58,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:58,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:02:59,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:59,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453663637] [2022-11-03 04:02:59,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453663637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:59,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:59,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:02:59,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53317705] [2022-11-03 04:02:59,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:59,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:59,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:59,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:59,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:59,314 INFO L87 Difference]: Start difference. First operand 30907 states and 66334 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:02,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:02,010 INFO L93 Difference]: Finished difference Result 59977 states and 128756 transitions. [2022-11-03 04:03:02,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 04:03:02,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 04:03:02,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:02,129 INFO L225 Difference]: With dead ends: 59977 [2022-11-03 04:03:02,129 INFO L226 Difference]: Without dead ends: 59977 [2022-11-03 04:03:02,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2022-11-03 04:03:02,130 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 340 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:02,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 640 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-03 04:03:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59977 states. [2022-11-03 04:03:02,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59977 to 30357. [2022-11-03 04:03:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30357 states, 30289 states have (on average 2.153719171976625) internal successors, (65234), 30356 states have internal predecessors, (65234), 0 states have call successors, (0), 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 04:03:02,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30357 states to 30357 states and 65234 transitions. [2022-11-03 04:03:02,773 INFO L78 Accepts]: Start accepts. Automaton has 30357 states and 65234 transitions. Word has length 26 [2022-11-03 04:03:02,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:02,773 INFO L495 AbstractCegarLoop]: Abstraction has 30357 states and 65234 transitions. [2022-11-03 04:03:02,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:02,773 INFO L276 IsEmpty]: Start isEmpty. Operand 30357 states and 65234 transitions. [2022-11-03 04:03:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 04:03:02,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:02,774 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:02,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 04:03:02,774 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:02,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:02,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1521387459, now seen corresponding path program 1 times [2022-11-03 04:03:02,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:02,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393386822] [2022-11-03 04:03:02,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:02,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:03,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:03,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393386822] [2022-11-03 04:03:03,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393386822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:03,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:03,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:03:03,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834928398] [2022-11-03 04:03:03,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:03,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:03:03,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:03,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:03:03,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:03:03,499 INFO L87 Difference]: Start difference. First operand 30357 states and 65234 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 04:03:04,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:04,487 INFO L93 Difference]: Finished difference Result 32263 states and 69065 transitions. [2022-11-03 04:03:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:03:04,488 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 27 [2022-11-03 04:03:04,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:04,544 INFO L225 Difference]: With dead ends: 32263 [2022-11-03 04:03:04,544 INFO L226 Difference]: Without dead ends: 32263 [2022-11-03 04:03:04,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:03:04,545 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 92 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:04,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 75 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 04:03:04,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32263 states. [2022-11-03 04:03:05,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32263 to 32263. [2022-11-03 04:03:05,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32263 states, 32195 states have (on average 2.1452088833669825) internal successors, (69065), 32262 states have internal predecessors, (69065), 0 states have call successors, (0), 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 04:03:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32263 states to 32263 states and 69065 transitions. [2022-11-03 04:03:05,215 INFO L78 Accepts]: Start accepts. Automaton has 32263 states and 69065 transitions. Word has length 27 [2022-11-03 04:03:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:05,215 INFO L495 AbstractCegarLoop]: Abstraction has 32263 states and 69065 transitions. [2022-11-03 04:03:05,215 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 04:03:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 32263 states and 69065 transitions. [2022-11-03 04:03:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 04:03:05,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:05,216 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:05,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 04:03:05,217 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash -533058305, now seen corresponding path program 1 times [2022-11-03 04:03:05,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:05,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344016967] [2022-11-03 04:03:05,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:05,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:05,986 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:05,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:05,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344016967] [2022-11-03 04:03:05,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344016967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:05,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:05,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:03:05,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86477888] [2022-11-03 04:03:05,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:05,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:03:05,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:05,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:03:05,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:03:05,987 INFO L87 Difference]: Start difference. First operand 32263 states and 69065 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:07,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:07,186 INFO L93 Difference]: Finished difference Result 34631 states and 74125 transitions. [2022-11-03 04:03:07,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:03:07,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-03 04:03:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:07,246 INFO L225 Difference]: With dead ends: 34631 [2022-11-03 04:03:07,246 INFO L226 Difference]: Without dead ends: 34631 [2022-11-03 04:03:07,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:03:07,247 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 124 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:07,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 83 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 04:03:07,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34631 states. [2022-11-03 04:03:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34631 to 34631. [2022-11-03 04:03:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34631 states, 34563 states have (on average 2.1446344356682) internal successors, (74125), 34630 states have internal predecessors, (74125), 0 states have call successors, (0), 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 04:03:07,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34631 states to 34631 states and 74125 transitions. [2022-11-03 04:03:07,824 INFO L78 Accepts]: Start accepts. Automaton has 34631 states and 74125 transitions. Word has length 28 [2022-11-03 04:03:07,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:07,825 INFO L495 AbstractCegarLoop]: Abstraction has 34631 states and 74125 transitions. [2022-11-03 04:03:07,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 34631 states and 74125 transitions. [2022-11-03 04:03:07,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:07,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:07,826 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:07,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 04:03:07,826 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:07,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:07,826 INFO L85 PathProgramCache]: Analyzing trace with hash -700795917, now seen corresponding path program 1 times [2022-11-03 04:03:07,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:07,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926749584] [2022-11-03 04:03:07,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:07,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:08,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:08,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926749584] [2022-11-03 04:03:08,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926749584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:08,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:08,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:08,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143194835] [2022-11-03 04:03:08,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:08,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:08,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:08,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:08,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:08,843 INFO L87 Difference]: Start difference. First operand 34631 states and 74125 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:11,689 INFO L93 Difference]: Finished difference Result 66785 states and 143006 transitions. [2022-11-03 04:03:11,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 04:03:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:11,841 INFO L225 Difference]: With dead ends: 66785 [2022-11-03 04:03:11,841 INFO L226 Difference]: Without dead ends: 66785 [2022-11-03 04:03:11,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:03:11,842 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 501 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 2041 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:11,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 395 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2041 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 04:03:11,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66785 states. [2022-11-03 04:03:12,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66785 to 36016. [2022-11-03 04:03:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36016 states, 35949 states have (on average 2.137750702383933) internal successors, (76850), 36015 states have internal predecessors, (76850), 0 states have call successors, (0), 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 04:03:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36016 states to 36016 states and 76850 transitions. [2022-11-03 04:03:12,643 INFO L78 Accepts]: Start accepts. Automaton has 36016 states and 76850 transitions. Word has length 32 [2022-11-03 04:03:12,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:12,643 INFO L495 AbstractCegarLoop]: Abstraction has 36016 states and 76850 transitions. [2022-11-03 04:03:12,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 36016 states and 76850 transitions. [2022-11-03 04:03:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:12,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:12,645 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:12,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 04:03:12,646 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:12,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:12,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1628318029, now seen corresponding path program 1 times [2022-11-03 04:03:12,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:12,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056303686] [2022-11-03 04:03:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:12,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:13,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:13,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056303686] [2022-11-03 04:03:13,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056303686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:13,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:13,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:13,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642132528] [2022-11-03 04:03:13,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:13,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:13,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:13,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:13,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:13,650 INFO L87 Difference]: Start difference. First operand 36016 states and 76850 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:16,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:16,698 INFO L93 Difference]: Finished difference Result 66657 states and 142678 transitions. [2022-11-03 04:03:16,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 04:03:16,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:16,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:16,832 INFO L225 Difference]: With dead ends: 66657 [2022-11-03 04:03:16,832 INFO L226 Difference]: Without dead ends: 66657 [2022-11-03 04:03:16,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:03:16,833 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 519 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:16,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 384 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 04:03:16,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66657 states. [2022-11-03 04:03:17,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66657 to 36096. [2022-11-03 04:03:17,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36096 states, 36029 states have (on average 2.1374448361042493) internal successors, (77010), 36095 states have internal predecessors, (77010), 0 states have call successors, (0), 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 04:03:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36096 states to 36096 states and 77010 transitions. [2022-11-03 04:03:17,568 INFO L78 Accepts]: Start accepts. Automaton has 36096 states and 77010 transitions. Word has length 32 [2022-11-03 04:03:17,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:17,568 INFO L495 AbstractCegarLoop]: Abstraction has 36096 states and 77010 transitions. [2022-11-03 04:03:17,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand 36096 states and 77010 transitions. [2022-11-03 04:03:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:17,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:17,569 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:17,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 04:03:17,569 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:17,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:17,570 INFO L85 PathProgramCache]: Analyzing trace with hash 768608531, now seen corresponding path program 2 times [2022-11-03 04:03:17,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:17,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68233574] [2022-11-03 04:03:17,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:17,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:18,563 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:18,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:18,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68233574] [2022-11-03 04:03:18,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68233574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:18,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:18,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:18,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223493000] [2022-11-03 04:03:18,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:18,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:18,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:18,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:18,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:18,566 INFO L87 Difference]: Start difference. First operand 36096 states and 77010 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:21,431 INFO L93 Difference]: Finished difference Result 38200 states and 81879 transitions. [2022-11-03 04:03:21,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:03:21,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:21,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:21,515 INFO L225 Difference]: With dead ends: 38200 [2022-11-03 04:03:21,515 INFO L226 Difference]: Without dead ends: 38200 [2022-11-03 04:03:21,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:03:21,516 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 288 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:21,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 407 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2326 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 04:03:21,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38200 states. [2022-11-03 04:03:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38200 to 36096. [2022-11-03 04:03:22,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36096 states, 36029 states have (on average 2.1374448361042493) internal successors, (77010), 36095 states have internal predecessors, (77010), 0 states have call successors, (0), 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 04:03:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36096 states to 36096 states and 77010 transitions. [2022-11-03 04:03:22,098 INFO L78 Accepts]: Start accepts. Automaton has 36096 states and 77010 transitions. Word has length 32 [2022-11-03 04:03:22,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:22,098 INFO L495 AbstractCegarLoop]: Abstraction has 36096 states and 77010 transitions. [2022-11-03 04:03:22,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:22,099 INFO L276 IsEmpty]: Start isEmpty. Operand 36096 states and 77010 transitions. [2022-11-03 04:03:22,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:22,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:22,100 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:22,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 04:03:22,101 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:22,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:22,101 INFO L85 PathProgramCache]: Analyzing trace with hash 774432191, now seen corresponding path program 3 times [2022-11-03 04:03:22,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:22,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091491638] [2022-11-03 04:03:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:22,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:22,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:22,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091491638] [2022-11-03 04:03:22,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091491638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:22,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:22,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:22,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594762420] [2022-11-03 04:03:22,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:22,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:22,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:22,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:22,974 INFO L87 Difference]: Start difference. First operand 36096 states and 77010 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:25,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:25,806 INFO L93 Difference]: Finished difference Result 38501 states and 82490 transitions. [2022-11-03 04:03:25,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:03:25,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:25,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:25,875 INFO L225 Difference]: With dead ends: 38501 [2022-11-03 04:03:25,875 INFO L226 Difference]: Without dead ends: 38501 [2022-11-03 04:03:25,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:03:25,876 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 295 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:25,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 406 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 04:03:25,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38501 states. [2022-11-03 04:03:26,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38501 to 36206. [2022-11-03 04:03:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36206 states, 36139 states have (on average 2.1370264810869144) internal successors, (77230), 36205 states have internal predecessors, (77230), 0 states have call successors, (0), 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 04:03:26,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36206 states to 36206 states and 77230 transitions. [2022-11-03 04:03:26,389 INFO L78 Accepts]: Start accepts. Automaton has 36206 states and 77230 transitions. Word has length 32 [2022-11-03 04:03:26,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:26,389 INFO L495 AbstractCegarLoop]: Abstraction has 36206 states and 77230 transitions. [2022-11-03 04:03:26,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:26,389 INFO L276 IsEmpty]: Start isEmpty. Operand 36206 states and 77230 transitions. [2022-11-03 04:03:26,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:26,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:26,390 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:26,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-03 04:03:26,390 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash 955859381, now seen corresponding path program 4 times [2022-11-03 04:03:26,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:26,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473956459] [2022-11-03 04:03:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:26,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:27,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:27,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473956459] [2022-11-03 04:03:27,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473956459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:27,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:27,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:27,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488773053] [2022-11-03 04:03:27,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:27,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:27,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:27,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:27,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:27,336 INFO L87 Difference]: Start difference. First operand 36206 states and 77230 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:30,243 INFO L93 Difference]: Finished difference Result 38842 states and 83191 transitions. [2022-11-03 04:03:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:03:30,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:30,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:30,312 INFO L225 Difference]: With dead ends: 38842 [2022-11-03 04:03:30,312 INFO L226 Difference]: Without dead ends: 38842 [2022-11-03 04:03:30,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:03:30,313 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 241 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:30,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 406 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 04:03:30,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38842 states. [2022-11-03 04:03:30,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38842 to 36316. [2022-11-03 04:03:30,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36316 states, 36249 states have (on average 2.1366106651217964) internal successors, (77450), 36315 states have internal predecessors, (77450), 0 states have call successors, (0), 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 04:03:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36316 states to 36316 states and 77450 transitions. [2022-11-03 04:03:30,885 INFO L78 Accepts]: Start accepts. Automaton has 36316 states and 77450 transitions. Word has length 32 [2022-11-03 04:03:30,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:30,886 INFO L495 AbstractCegarLoop]: Abstraction has 36316 states and 77450 transitions. [2022-11-03 04:03:30,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:30,886 INFO L276 IsEmpty]: Start isEmpty. Operand 36316 states and 77450 transitions. [2022-11-03 04:03:30,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:30,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:30,887 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:30,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-03 04:03:30,887 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:30,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:30,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1982126691, now seen corresponding path program 5 times [2022-11-03 04:03:30,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:30,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428707539] [2022-11-03 04:03:30,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:30,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:31,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:31,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428707539] [2022-11-03 04:03:31,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428707539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:31,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:31,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:31,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009726846] [2022-11-03 04:03:31,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:31,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:31,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:31,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:31,757 INFO L87 Difference]: Start difference. First operand 36316 states and 77450 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:34,316 INFO L93 Difference]: Finished difference Result 39184 states and 83893 transitions. [2022-11-03 04:03:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:03:34,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:34,384 INFO L225 Difference]: With dead ends: 39184 [2022-11-03 04:03:34,384 INFO L226 Difference]: Without dead ends: 39184 [2022-11-03 04:03:34,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:03:34,385 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 217 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:34,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 400 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 04:03:34,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39184 states. [2022-11-03 04:03:34,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39184 to 36426. [2022-11-03 04:03:34,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36426 states, 36359 states have (on average 2.1361973651640582) internal successors, (77670), 36425 states have internal predecessors, (77670), 0 states have call successors, (0), 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 04:03:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36426 states to 36426 states and 77670 transitions. [2022-11-03 04:03:35,076 INFO L78 Accepts]: Start accepts. Automaton has 36426 states and 77670 transitions. Word has length 32 [2022-11-03 04:03:35,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:35,077 INFO L495 AbstractCegarLoop]: Abstraction has 36426 states and 77670 transitions. [2022-11-03 04:03:35,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 36426 states and 77670 transitions. [2022-11-03 04:03:35,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:35,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:35,078 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:35,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-03 04:03:35,079 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:35,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:35,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1140496895, now seen corresponding path program 6 times [2022-11-03 04:03:35,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:35,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050081902] [2022-11-03 04:03:35,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:35,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:35,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:35,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050081902] [2022-11-03 04:03:35,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050081902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:35,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:35,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:35,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862335181] [2022-11-03 04:03:35,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:35,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:35,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:35,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:35,993 INFO L87 Difference]: Start difference. First operand 36426 states and 77670 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:39,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:39,017 INFO L93 Difference]: Finished difference Result 70750 states and 151484 transitions. [2022-11-03 04:03:39,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 04:03:39,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:39,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:39,318 INFO L225 Difference]: With dead ends: 70750 [2022-11-03 04:03:39,318 INFO L226 Difference]: Without dead ends: 70750 [2022-11-03 04:03:39,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2022-11-03 04:03:39,319 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 428 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:39,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 652 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 04:03:39,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70750 states. [2022-11-03 04:03:40,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70750 to 37126. [2022-11-03 04:03:40,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37126 states, 37059 states have (on average 2.1336247605170136) internal successors, (79070), 37125 states have internal predecessors, (79070), 0 states have call successors, (0), 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 04:03:40,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37126 states to 37126 states and 79070 transitions. [2022-11-03 04:03:40,116 INFO L78 Accepts]: Start accepts. Automaton has 37126 states and 79070 transitions. Word has length 32 [2022-11-03 04:03:40,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:40,116 INFO L495 AbstractCegarLoop]: Abstraction has 37126 states and 79070 transitions. [2022-11-03 04:03:40,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:40,116 INFO L276 IsEmpty]: Start isEmpty. Operand 37126 states and 79070 transitions. [2022-11-03 04:03:40,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:40,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:40,118 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:40,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-03 04:03:40,118 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:40,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:40,119 INFO L85 PathProgramCache]: Analyzing trace with hash -281172711, now seen corresponding path program 2 times [2022-11-03 04:03:40,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:40,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561389286] [2022-11-03 04:03:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:40,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:41,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:41,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561389286] [2022-11-03 04:03:41,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561389286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:41,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:41,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:41,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478886070] [2022-11-03 04:03:41,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:41,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:41,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:41,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:41,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:41,092 INFO L87 Difference]: Start difference. First operand 37126 states and 79070 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:44,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:44,780 INFO L93 Difference]: Finished difference Result 69616 states and 148981 transitions. [2022-11-03 04:03:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 04:03:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:44,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:44,910 INFO L225 Difference]: With dead ends: 69616 [2022-11-03 04:03:44,910 INFO L226 Difference]: Without dead ends: 69616 [2022-11-03 04:03:44,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:03:44,911 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 426 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 3275 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 3331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:44,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 618 Invalid, 3331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3275 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 04:03:44,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69616 states. [2022-11-03 04:03:45,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69616 to 36218. [2022-11-03 04:03:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36218 states, 36152 states have (on average 2.136036733790662) internal successors, (77222), 36217 states have internal predecessors, (77222), 0 states have call successors, (0), 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 04:03:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36218 states to 36218 states and 77222 transitions. [2022-11-03 04:03:45,720 INFO L78 Accepts]: Start accepts. Automaton has 36218 states and 77222 transitions. Word has length 32 [2022-11-03 04:03:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:45,720 INFO L495 AbstractCegarLoop]: Abstraction has 36218 states and 77222 transitions. [2022-11-03 04:03:45,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 36218 states and 77222 transitions. [2022-11-03 04:03:45,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:45,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:45,722 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:45,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-03 04:03:45,722 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:45,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:45,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1334671191, now seen corresponding path program 7 times [2022-11-03 04:03:45,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:45,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774726551] [2022-11-03 04:03:45,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:45,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:46,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:46,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774726551] [2022-11-03 04:03:46,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774726551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:46,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:46,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:46,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384538931] [2022-11-03 04:03:46,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:46,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:46,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:46,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:46,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:46,669 INFO L87 Difference]: Start difference. First operand 36218 states and 77222 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:49,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:49,868 INFO L93 Difference]: Finished difference Result 66411 states and 142142 transitions. [2022-11-03 04:03:49,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:03:49,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:49,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:50,014 INFO L225 Difference]: With dead ends: 66411 [2022-11-03 04:03:50,014 INFO L226 Difference]: Without dead ends: 66411 [2022-11-03 04:03:50,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:03:50,015 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 371 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:50,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 671 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 04:03:50,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66411 states. [2022-11-03 04:03:50,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66411 to 35443. [2022-11-03 04:03:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35443 states, 35378 states have (on average 2.1376844366555487) internal successors, (75627), 35442 states have internal predecessors, (75627), 0 states have call successors, (0), 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 04:03:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35443 states to 35443 states and 75627 transitions. [2022-11-03 04:03:50,962 INFO L78 Accepts]: Start accepts. Automaton has 35443 states and 75627 transitions. Word has length 32 [2022-11-03 04:03:50,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:50,962 INFO L495 AbstractCegarLoop]: Abstraction has 35443 states and 75627 transitions. [2022-11-03 04:03:50,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:50,962 INFO L276 IsEmpty]: Start isEmpty. Operand 35443 states and 75627 transitions. [2022-11-03 04:03:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:03:50,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:50,963 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:50,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-03 04:03:50,963 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:50,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:50,963 INFO L85 PathProgramCache]: Analyzing trace with hash 407149079, now seen corresponding path program 3 times [2022-11-03 04:03:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:50,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936151335] [2022-11-03 04:03:50,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:50,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:51,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:51,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936151335] [2022-11-03 04:03:51,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936151335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:51,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:51,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:51,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857429443] [2022-11-03 04:03:51,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:51,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:03:51,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:51,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:03:51,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:51,846 INFO L87 Difference]: Start difference. First operand 35443 states and 75627 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:55,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:55,567 INFO L93 Difference]: Finished difference Result 66684 states and 142544 transitions. [2022-11-03 04:03:55,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 04:03:55,567 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-03 04:03:55,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:55,707 INFO L225 Difference]: With dead ends: 66684 [2022-11-03 04:03:55,707 INFO L226 Difference]: Without dead ends: 66684 [2022-11-03 04:03:55,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2022-11-03 04:03:55,708 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 332 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:55,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 648 Invalid, 3625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3569 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:03:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66684 states. [2022-11-03 04:03:56,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66684 to 34233. [2022-11-03 04:03:56,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34233 states, 34168 states have (on average 2.1425602903301333) internal successors, (73207), 34232 states have internal predecessors, (73207), 0 states have call successors, (0), 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 04:03:56,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34233 states to 34233 states and 73207 transitions. [2022-11-03 04:03:56,522 INFO L78 Accepts]: Start accepts. Automaton has 34233 states and 73207 transitions. Word has length 32 [2022-11-03 04:03:56,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:56,522 INFO L495 AbstractCegarLoop]: Abstraction has 34233 states and 73207 transitions. [2022-11-03 04:03:56,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 34233 states and 73207 transitions. [2022-11-03 04:03:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 04:03:56,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:56,523 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:56,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-03 04:03:56,524 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:56,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:56,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1112205688, now seen corresponding path program 1 times [2022-11-03 04:03:56,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:56,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051698958] [2022-11-03 04:03:56,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:56,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:03:57,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:57,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051698958] [2022-11-03 04:03:57,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051698958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:57,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:57,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:03:57,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071327576] [2022-11-03 04:03:57,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:57,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:03:57,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:03:57,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:03:57,372 INFO L87 Difference]: Start difference. First operand 34233 states and 73207 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:58,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:58,673 INFO L93 Difference]: Finished difference Result 47648 states and 101495 transitions. [2022-11-03 04:03:58,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:03:58,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-03 04:03:58,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:58,767 INFO L225 Difference]: With dead ends: 47648 [2022-11-03 04:03:58,767 INFO L226 Difference]: Without dead ends: 47648 [2022-11-03 04:03:58,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:03:58,768 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:58,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 53 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 04:03:58,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47648 states. [2022-11-03 04:03:59,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47648 to 37799. [2022-11-03 04:03:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37799 states, 37734 states have (on average 2.130518895425876) internal successors, (80393), 37798 states have internal predecessors, (80393), 0 states have call successors, (0), 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 04:03:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37799 states to 37799 states and 80393 transitions. [2022-11-03 04:03:59,373 INFO L78 Accepts]: Start accepts. Automaton has 37799 states and 80393 transitions. Word has length 33 [2022-11-03 04:03:59,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:59,373 INFO L495 AbstractCegarLoop]: Abstraction has 37799 states and 80393 transitions. [2022-11-03 04:03:59,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 37799 states and 80393 transitions. [2022-11-03 04:03:59,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 04:03:59,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:59,375 INFO L195 NwaCegarLoop]: trace histogram [10, 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 04:03:59,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-03 04:03:59,375 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:03:59,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1011845955, now seen corresponding path program 1 times [2022-11-03 04:03:59,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:59,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064854250] [2022-11-03 04:03:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:59,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 04:04:00,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:00,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064854250] [2022-11-03 04:04:00,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064854250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:00,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:00,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:04:00,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589740364] [2022-11-03 04:04:00,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:00,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:04:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:00,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:04:00,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:04:00,121 INFO L87 Difference]: Start difference. First operand 37799 states and 80393 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:04:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:01,729 INFO L93 Difference]: Finished difference Result 45171 states and 95938 transitions. [2022-11-03 04:04:01,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:04:01,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-03 04:04:01,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:01,812 INFO L225 Difference]: With dead ends: 45171 [2022-11-03 04:04:01,812 INFO L226 Difference]: Without dead ends: 45171 [2022-11-03 04:04:01,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:04:01,813 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 134 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:01,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 75 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 04:04:01,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45171 states. [2022-11-03 04:04:02,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45171 to 39957. [2022-11-03 04:04:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39957 states, 39894 states have (on average 2.1292174261793755) internal successors, (84943), 39956 states have internal predecessors, (84943), 0 states have call successors, (0), 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 04:04:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39957 states to 39957 states and 84943 transitions. [2022-11-03 04:04:02,640 INFO L78 Accepts]: Start accepts. Automaton has 39957 states and 84943 transitions. Word has length 34 [2022-11-03 04:04:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:02,641 INFO L495 AbstractCegarLoop]: Abstraction has 39957 states and 84943 transitions. [2022-11-03 04:04:02,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:04:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 39957 states and 84943 transitions. [2022-11-03 04:04:02,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 04:04:02,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:02,642 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 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 04:04:02,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-03 04:04:02,643 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 04:04:02,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:02,643 INFO L85 PathProgramCache]: Analyzing trace with hash -80119861, now seen corresponding path program 1 times [2022-11-03 04:04:02,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:02,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246484003] [2022-11-03 04:04:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:02,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat