./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/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_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/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_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:10:16,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:10:16,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:10:16,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:10:16,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:10:16,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:10:16,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:10:16,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:10:16,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:10:16,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:10:16,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:10:16,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:10:16,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:10:16,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:10:16,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:10:16,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:10:16,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:10:16,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:10:16,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:10:16,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:10:16,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:10:16,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:10:16,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:10:16,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:10:16,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:10:16,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:10:16,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:10:16,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:10:16,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:10:16,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:10:16,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:10:16,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:10:16,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:10:16,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:10:16,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:10:16,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:10:16,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:10:16,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:10:16,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:10:16,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:10:16,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:10:16,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:10:16,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:10:16,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:10:16,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:10:16,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:10:16,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:10:16,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:10:16,253 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:10:16,253 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:10:16,253 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:10:16,253 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:10:16,255 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:10:16,255 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:10:16,255 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:10:16,256 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:10:16,256 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:10:16,256 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:10:16,257 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:10:16,257 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:10:16,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:10:16,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:10:16,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:10:16,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:10:16,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:10:16,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:10:16,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:10:16,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:10:16,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:10:16,260 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:10:16,260 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:10:16,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:10:16,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:10:16,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:10:16,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:10:16,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:10:16,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:10:16,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:10:16,264 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:10:16,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:10:16,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:10:16,267 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:10:16,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:10:16,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:10:16,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:10:16,268 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_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2022-11-03 02:10:16,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:10:16,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:10:16,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:10:16,597 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:10:16,598 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:10:16,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-03 02:10:16,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/data/e3ecf118b/5d9619675a1a4ce4ae59a4c0dd6517ae/FLAG3e25f6ef9 [2022-11-03 02:10:17,488 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:10:17,489 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-03 02:10:17,522 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/data/e3ecf118b/5d9619675a1a4ce4ae59a4c0dd6517ae/FLAG3e25f6ef9 [2022-11-03 02:10:17,672 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/data/e3ecf118b/5d9619675a1a4ce4ae59a4c0dd6517ae [2022-11-03 02:10:17,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:10:17,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:10:17,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:10:17,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:10:17,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:10:17,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:10:17" (1/1) ... [2022-11-03 02:10:17,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eac44f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:17, skipping insertion in model container [2022-11-03 02:10:17,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:10:17" (1/1) ... [2022-11-03 02:10:17,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:10:17,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:10:18,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:10:18,548 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:10:18,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:10:18,694 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:10:18,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18 WrapperNode [2022-11-03 02:10:18,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:10:18,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:10:18,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:10:18,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:10:18,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,798 INFO L138 Inliner]: procedures = 368, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 184 [2022-11-03 02:10:18,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:10:18,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:10:18,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:10:18,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:10:18,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,867 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:10:18,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:10:18,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:10:18,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:10:18,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (1/1) ... [2022-11-03 02:10:18,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:10:18,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:10:18,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:10:18,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec5fa37-5b68-482b-b257-7bb1b50de8f5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:10:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:10:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:10:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:10:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:10:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:10:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:10:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:10:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:10:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:10:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 02:10:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 02:10:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:10:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:10:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:10:19,022 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:10:19,258 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:10:19,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:10:19,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:10:20,012 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:10:20,012 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:10:20,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:20 BoogieIcfgContainer [2022-11-03 02:10:20,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:10:20,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:10:20,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:10:20,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:10:20,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:10:17" (1/3) ... [2022-11-03 02:10:20,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2dda8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:10:20, skipping insertion in model container [2022-11-03 02:10:20,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:18" (2/3) ... [2022-11-03 02:10:20,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2dda8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:10:20, skipping insertion in model container [2022-11-03 02:10:20,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:20" (3/3) ... [2022-11-03 02:10:20,029 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2022-11-03 02:10:20,040 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:10:20,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:10:20,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-03 02:10:20,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:10:20,249 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:10:20,317 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:10:20,332 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 290 places, 286 transitions, 577 flow [2022-11-03 02:10:20,338 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 290 places, 286 transitions, 577 flow [2022-11-03 02:10:20,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 286 transitions, 577 flow [2022-11-03 02:10:20,578 INFO L130 PetriNetUnfolder]: 0/285 cut-off events. [2022-11-03 02:10:20,579 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:10:20,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 285 events. 0/285 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-03 02:10:20,587 INFO L118 LiptonReduction]: Number of co-enabled transitions 7728 [2022-11-03 02:11:20,371 WARN L234 SmtUtils]: Spent 10.02s on a formula simplification. DAG size of input: 147 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:11:37,339 WARN L234 SmtUtils]: Spent 13.48s on a formula simplification. DAG size of input: 147 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:12:08,613 WARN L234 SmtUtils]: Spent 22.38s on a formula simplification. DAG size of input: 259 DAG size of output: 253 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:12:15,974 WARN L234 SmtUtils]: Spent 7.35s on a formula simplification that was a NOOP. DAG size: 225 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:12:24,792 WARN L234 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 259 DAG size of output: 253 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:14:25,331 WARN L234 SmtUtils]: Spent 1.81m on a formula simplification. DAG size of input: 308 DAG size of output: 304 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:14:43,071 WARN L234 SmtUtils]: Spent 17.74s on a formula simplification that was a NOOP. DAG size: 286 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:15:29,143 WARN L234 SmtUtils]: Spent 46.07s on a formula simplification. DAG size of input: 308 DAG size of output: 304 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:15:57,219 WARN L234 SmtUtils]: Spent 28.07s on a formula simplification that was a NOOP. DAG size: 286 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:17:23,989 WARN L234 SmtUtils]: Spent 1.44m on a formula simplification that was a NOOP. DAG size: 396 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:19:02,599 WARN L234 SmtUtils]: Spent 1.64m on a formula simplification that was a NOOP. DAG size: 358 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:21:32,106 WARN L234 SmtUtils]: Spent 2.49m on a formula simplification that was a NOOP. DAG size: 396 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:23:15,106 WARN L234 SmtUtils]: Spent 1.72m on a formula simplification that was a NOOP. DAG size: 358 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:23:15,427 INFO L133 LiptonReduction]: Checked pairs total: 106663 [2022-11-03 02:23:15,428 INFO L135 LiptonReduction]: Total number of compositions: 313 [2022-11-03 02:23:15,441 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 91 transitions, 187 flow [2022-11-03 02:23:15,554 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1447 states, 1371 states have (on average 2.0437636761487963) internal successors, (2802), 1446 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:15,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:23:15,582 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;@ccad4ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:23:15,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-03 02:23:15,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 1447 states, 1371 states have (on average 2.0437636761487963) internal successors, (2802), 1446 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:23:15,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:15,596 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:23:15,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:15,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:15,603 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-03 02:23:15,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:15,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598334361] [2022-11-03 02:23:15,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:15,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:15,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:15,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598334361] [2022-11-03 02:23:15,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598334361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:15,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:15,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:23:15,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898702578] [2022-11-03 02:23:15,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:15,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:23:15,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:23:15,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:23:15,845 INFO L87 Difference]: Start difference. First operand has 1447 states, 1371 states have (on average 2.0437636761487963) internal successors, (2802), 1446 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:16,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:16,660 INFO L93 Difference]: Finished difference Result 1285 states and 2496 transitions. [2022-11-03 02:23:16,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:23:16,663 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-03 02:23:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:16,686 INFO L225 Difference]: With dead ends: 1285 [2022-11-03 02:23:16,686 INFO L226 Difference]: Without dead ends: 1285 [2022-11-03 02:23:16,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:23:16,691 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:16,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:23:16,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-11-03 02:23:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1285. [2022-11-03 02:23:16,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1251 states have (on average 1.9952038369304557) internal successors, (2496), 1284 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 2496 transitions. [2022-11-03 02:23:16,842 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 2496 transitions. Word has length 1 [2022-11-03 02:23:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:16,843 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 2496 transitions. [2022-11-03 02:23:16,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:16,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 2496 transitions. [2022-11-03 02:23:16,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:23:16,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:16,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:16,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:23:16,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:16,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1070374038, now seen corresponding path program 1 times [2022-11-03 02:23:16,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:16,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625678992] [2022-11-03 02:23:16,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:16,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:17,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:17,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625678992] [2022-11-03 02:23:17,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625678992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:17,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:17,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:17,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996054374] [2022-11-03 02:23:17,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:17,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:23:17,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:17,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:23:17,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:17,912 INFO L87 Difference]: Start difference. First operand 1285 states and 2496 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:19,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:19,295 INFO L93 Difference]: Finished difference Result 2028 states and 3927 transitions. [2022-11-03 02:23:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:23:19,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-11-03 02:23:19,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:19,306 INFO L225 Difference]: With dead ends: 2028 [2022-11-03 02:23:19,307 INFO L226 Difference]: Without dead ends: 2028 [2022-11-03 02:23:19,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:19,309 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 78 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:19,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 17 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:23:19,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-11-03 02:23:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1252. [2022-11-03 02:23:19,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1223 states have (on average 1.9877350776778413) internal successors, (2431), 1251 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:19,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 2431 transitions. [2022-11-03 02:23:19,356 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 2431 transitions. Word has length 7 [2022-11-03 02:23:19,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:19,356 INFO L495 AbstractCegarLoop]: Abstraction has 1252 states and 2431 transitions. [2022-11-03 02:23:19,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:19,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 2431 transitions. [2022-11-03 02:23:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:23:19,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:19,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:19,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:23:19,358 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:19,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2038473644, now seen corresponding path program 1 times [2022-11-03 02:23:19,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:19,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295327695] [2022-11-03 02:23:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:19,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:20,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:20,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295327695] [2022-11-03 02:23:20,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295327695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:20,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:20,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:23:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436633668] [2022-11-03 02:23:20,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:20,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:20,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:20,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:20,201 INFO L87 Difference]: Start difference. First operand 1252 states and 2431 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:21,754 INFO L93 Difference]: Finished difference Result 1990 states and 3852 transitions. [2022-11-03 02:23:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:23:21,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-03 02:23:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:21,767 INFO L225 Difference]: With dead ends: 1990 [2022-11-03 02:23:21,767 INFO L226 Difference]: Without dead ends: 1990 [2022-11-03 02:23:21,768 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 02:23:21,780 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 72 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:21,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 18 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 02:23:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2022-11-03 02:23:21,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1344. [2022-11-03 02:23:21,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1316 states have (on average 1.9840425531914894) internal successors, (2611), 1343 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 2611 transitions. [2022-11-03 02:23:21,835 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 2611 transitions. Word has length 9 [2022-11-03 02:23:21,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:21,835 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 2611 transitions. [2022-11-03 02:23:21,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 2611 transitions. [2022-11-03 02:23:21,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:23:21,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:21,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:21,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:23:21,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:21,840 INFO L85 PathProgramCache]: Analyzing trace with hash -526475089, now seen corresponding path program 1 times [2022-11-03 02:23:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:21,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909860265] [2022-11-03 02:23:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:21,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:22,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:22,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909860265] [2022-11-03 02:23:22,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909860265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:22,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:22,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:22,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134720150] [2022-11-03 02:23:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:22,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:23:22,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:22,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:23:22,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:22,441 INFO L87 Difference]: Start difference. First operand 1344 states and 2611 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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 02:23:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:24,045 INFO L93 Difference]: Finished difference Result 1312 states and 2548 transitions. [2022-11-03 02:23:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:23:24,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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 02:23:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:24,052 INFO L225 Difference]: With dead ends: 1312 [2022-11-03 02:23:24,053 INFO L226 Difference]: Without dead ends: 1312 [2022-11-03 02:23:24,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:24,054 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 46 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:24,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 48 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-03 02:23:24,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-11-03 02:23:24,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1312. [2022-11-03 02:23:24,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1288 states have (on average 1.9782608695652173) internal successors, (2548), 1311 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:24,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 2548 transitions. [2022-11-03 02:23:24,095 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 2548 transitions. Word has length 11 [2022-11-03 02:23:24,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:24,096 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 2548 transitions. [2022-11-03 02:23:24,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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 02:23:24,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 2548 transitions. [2022-11-03 02:23:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:23:24,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:24,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:24,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:23:24,099 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:24,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1956282482, now seen corresponding path program 1 times [2022-11-03 02:23:24,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:24,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079368975] [2022-11-03 02:23:24,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:24,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:24,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:24,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079368975] [2022-11-03 02:23:24,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079368975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:24,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:24,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:23:24,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881589350] [2022-11-03 02:23:24,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:24,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:24,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:24,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:24,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:24,798 INFO L87 Difference]: Start difference. First operand 1312 states and 2548 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:26,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:26,828 INFO L93 Difference]: Finished difference Result 1806 states and 3490 transitions. [2022-11-03 02:23:26,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:23:26,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:23:26,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:26,838 INFO L225 Difference]: With dead ends: 1806 [2022-11-03 02:23:26,838 INFO L226 Difference]: Without dead ends: 1792 [2022-11-03 02:23:26,839 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 02:23:26,840 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 56 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:26,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 31 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 02:23:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2022-11-03 02:23:26,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1486. [2022-11-03 02:23:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1462 states have (on average 1.9740082079343366) internal successors, (2886), 1485 states have internal predecessors, (2886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:26,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2886 transitions. [2022-11-03 02:23:26,888 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2886 transitions. Word has length 15 [2022-11-03 02:23:26,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:26,889 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2886 transitions. [2022-11-03 02:23:26,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2886 transitions. [2022-11-03 02:23:26,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:23:26,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:26,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:26,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:23:26,892 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash -635602183, now seen corresponding path program 1 times [2022-11-03 02:23:26,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:26,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955563192] [2022-11-03 02:23:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:26,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:27,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:27,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:27,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955563192] [2022-11-03 02:23:27,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955563192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:27,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:27,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:23:27,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065951848] [2022-11-03 02:23:27,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:27,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:27,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:27,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:27,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:27,621 INFO L87 Difference]: Start difference. First operand 1486 states and 2886 transitions. Second operand has 6 states, 5 states have (on average 3.4) 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 02:23:29,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:29,176 INFO L93 Difference]: Finished difference Result 1600 states and 3110 transitions. [2022-11-03 02:23:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:23:29,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) 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 17 [2022-11-03 02:23:29,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:29,187 INFO L225 Difference]: With dead ends: 1600 [2022-11-03 02:23:29,187 INFO L226 Difference]: Without dead ends: 1600 [2022-11-03 02:23:29,187 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 02:23:29,188 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 64 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:29,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 49 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 02:23:29,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-11-03 02:23:29,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2022-11-03 02:23:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1576 states have (on average 1.9733502538071066) internal successors, (3110), 1599 states have internal predecessors, (3110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 3110 transitions. [2022-11-03 02:23:29,240 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 3110 transitions. Word has length 17 [2022-11-03 02:23:29,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:29,241 INFO L495 AbstractCegarLoop]: Abstraction has 1600 states and 3110 transitions. [2022-11-03 02:23:29,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) 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 02:23:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 3110 transitions. [2022-11-03 02:23:29,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:23:29,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:29,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:29,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:23:29,244 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:29,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:29,245 INFO L85 PathProgramCache]: Analyzing trace with hash -66705042, now seen corresponding path program 1 times [2022-11-03 02:23:29,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:29,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621884864] [2022-11-03 02:23:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:29,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:29,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:29,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:29,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621884864] [2022-11-03 02:23:29,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621884864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:29,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:29,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:29,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856609009] [2022-11-03 02:23:29,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:29,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:29,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:29,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:29,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:29,504 INFO L87 Difference]: Start difference. First operand 1600 states and 3110 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:30,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:30,565 INFO L93 Difference]: Finished difference Result 1167 states and 2188 transitions. [2022-11-03 02:23:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:30,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-03 02:23:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:30,572 INFO L225 Difference]: With dead ends: 1167 [2022-11-03 02:23:30,572 INFO L226 Difference]: Without dead ends: 1167 [2022-11-03 02:23:30,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:30,574 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 55 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:30,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 108 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:23:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2022-11-03 02:23:30,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1139. [2022-11-03 02:23:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1121 states have (on average 1.926851025869759) internal successors, (2160), 1138 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:30,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 2160 transitions. [2022-11-03 02:23:30,621 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 2160 transitions. Word has length 20 [2022-11-03 02:23:30,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:30,622 INFO L495 AbstractCegarLoop]: Abstraction has 1139 states and 2160 transitions. [2022-11-03 02:23:30,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:30,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 2160 transitions. [2022-11-03 02:23:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:23:30,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:30,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:30,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:23:30,624 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1372084512, now seen corresponding path program 1 times [2022-11-03 02:23:30,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:30,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276747548] [2022-11-03 02:23:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:30,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:31,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:31,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276747548] [2022-11-03 02:23:31,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276747548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:31,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:31,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:31,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457228249] [2022-11-03 02:23:31,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:31,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:23:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:31,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:23:31,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:31,276 INFO L87 Difference]: Start difference. First operand 1139 states and 2160 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 02:23:33,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:33,068 INFO L93 Difference]: Finished difference Result 1311 states and 2475 transitions. [2022-11-03 02:23:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:23:33,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 23 [2022-11-03 02:23:33,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:33,075 INFO L225 Difference]: With dead ends: 1311 [2022-11-03 02:23:33,075 INFO L226 Difference]: Without dead ends: 1311 [2022-11-03 02:23:33,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:33,077 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 74 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:33,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 35 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 02:23:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2022-11-03 02:23:33,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1104. [2022-11-03 02:23:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1089 states have (on average 1.9201101928374655) internal successors, (2091), 1103 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:33,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 2091 transitions. [2022-11-03 02:23:33,154 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 2091 transitions. Word has length 23 [2022-11-03 02:23:33,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:33,154 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 2091 transitions. [2022-11-03 02:23:33,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 02:23:33,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 2091 transitions. [2022-11-03 02:23:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:23:33,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:33,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:33,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:23:33,156 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:33,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:33,158 INFO L85 PathProgramCache]: Analyzing trace with hash -5137818, now seen corresponding path program 1 times [2022-11-03 02:23:33,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:33,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528943890] [2022-11-03 02:23:33,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:33,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:33,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:33,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528943890] [2022-11-03 02:23:33,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528943890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:33,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:33,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:23:33,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721712609] [2022-11-03 02:23:33,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:33,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:33,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:33,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:33,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:33,816 INFO L87 Difference]: Start difference. First operand 1104 states and 2091 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 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 02:23:36,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:36,219 INFO L93 Difference]: Finished difference Result 1292 states and 2430 transitions. [2022-11-03 02:23:36,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:23:36,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 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 23 [2022-11-03 02:23:36,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:36,227 INFO L225 Difference]: With dead ends: 1292 [2022-11-03 02:23:36,227 INFO L226 Difference]: Without dead ends: 1250 [2022-11-03 02:23:36,227 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 02:23:36,228 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 94 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:36,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 40 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 02:23:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-11-03 02:23:36,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1116. [2022-11-03 02:23:36,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1101 states have (on average 1.9073569482288828) internal successors, (2100), 1115 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:36,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 2100 transitions. [2022-11-03 02:23:36,276 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 2100 transitions. Word has length 23 [2022-11-03 02:23:36,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:36,277 INFO L495 AbstractCegarLoop]: Abstraction has 1116 states and 2100 transitions. [2022-11-03 02:23:36,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 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 02:23:36,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 2100 transitions. [2022-11-03 02:23:36,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:23:36,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:36,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:36,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:23:36,279 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:36,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:36,280 INFO L85 PathProgramCache]: Analyzing trace with hash -416680031, now seen corresponding path program 1 times [2022-11-03 02:23:36,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:36,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702582801] [2022-11-03 02:23:36,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:36,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:36,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:36,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702582801] [2022-11-03 02:23:36,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702582801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:36,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:36,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912569882] [2022-11-03 02:23:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:36,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:23:36,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:23:36,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:36,872 INFO L87 Difference]: Start difference. First operand 1116 states and 2100 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:38,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:38,623 INFO L93 Difference]: Finished difference Result 1081 states and 2032 transitions. [2022-11-03 02:23:38,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:23:38,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-03 02:23:38,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:38,629 INFO L225 Difference]: With dead ends: 1081 [2022-11-03 02:23:38,630 INFO L226 Difference]: Without dead ends: 1081 [2022-11-03 02:23:38,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:38,631 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 41 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:38,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 48 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-03 02:23:38,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-11-03 02:23:38,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1081. [2022-11-03 02:23:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1069 states have (on average 1.900841908325538) internal successors, (2032), 1080 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 2032 transitions. [2022-11-03 02:23:38,665 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 2032 transitions. Word has length 27 [2022-11-03 02:23:38,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:38,665 INFO L495 AbstractCegarLoop]: Abstraction has 1081 states and 2032 transitions. [2022-11-03 02:23:38,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:38,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 2032 transitions. [2022-11-03 02:23:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 02:23:38,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:38,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:38,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:23:38,668 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:38,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:38,669 INFO L85 PathProgramCache]: Analyzing trace with hash 116092971, now seen corresponding path program 1 times [2022-11-03 02:23:38,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:38,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484312702] [2022-11-03 02:23:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:38,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:39,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:39,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484312702] [2022-11-03 02:23:39,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484312702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:39,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:39,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:23:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156392845] [2022-11-03 02:23:39,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:39,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:39,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:39,416 INFO L87 Difference]: Start difference. First operand 1081 states and 2032 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:42,254 INFO L93 Difference]: Finished difference Result 1194 states and 2244 transitions. [2022-11-03 02:23:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:23:42,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-03 02:23:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:42,260 INFO L225 Difference]: With dead ends: 1194 [2022-11-03 02:23:42,260 INFO L226 Difference]: Without dead ends: 1132 [2022-11-03 02:23:42,261 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 02:23:42,261 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 64 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:42,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 53 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:23:42,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-11-03 02:23:42,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132. [2022-11-03 02:23:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1120 states have (on average 1.8821428571428571) internal successors, (2108), 1131 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 2108 transitions. [2022-11-03 02:23:42,295 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 2108 transitions. Word has length 33 [2022-11-03 02:23:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:42,296 INFO L495 AbstractCegarLoop]: Abstraction has 1132 states and 2108 transitions. [2022-11-03 02:23:42,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 2108 transitions. [2022-11-03 02:23:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 02:23:42,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:42,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:42,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:23:42,299 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:42,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash -541486590, now seen corresponding path program 1 times [2022-11-03 02:23:42,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:42,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789128113] [2022-11-03 02:23:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:42,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:44,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:44,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789128113] [2022-11-03 02:23:44,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789128113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:44,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:44,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:23:44,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485759529] [2022-11-03 02:23:44,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:44,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:23:44,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:44,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:23:44,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:23:44,743 INFO L87 Difference]: Start difference. First operand 1132 states and 2108 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:47,667 INFO L93 Difference]: Finished difference Result 1258 states and 2345 transitions. [2022-11-03 02:23:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 02:23:47,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-03 02:23:47,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:47,678 INFO L225 Difference]: With dead ends: 1258 [2022-11-03 02:23:47,678 INFO L226 Difference]: Without dead ends: 1258 [2022-11-03 02:23:47,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:23:47,680 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 132 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:47,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 45 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 02:23:47,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-03 02:23:47,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1183. [2022-11-03 02:23:47,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1171 states have (on average 1.8898377455166524) internal successors, (2213), 1182 states have internal predecessors, (2213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 2213 transitions. [2022-11-03 02:23:47,743 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 2213 transitions. Word has length 34 [2022-11-03 02:23:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:47,744 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 2213 transitions. [2022-11-03 02:23:47,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 2213 transitions. [2022-11-03 02:23:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 02:23:47,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:47,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:47,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:23:47,748 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:47,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:47,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2049043765, now seen corresponding path program 1 times [2022-11-03 02:23:47,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:47,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308759619] [2022-11-03 02:23:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:47,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:49,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:49,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308759619] [2022-11-03 02:23:49,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308759619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:49,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:49,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:23:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873878170] [2022-11-03 02:23:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:49,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:23:49,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:49,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:23:49,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:49,568 INFO L87 Difference]: Start difference. First operand 1183 states and 2213 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:52,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:52,850 INFO L93 Difference]: Finished difference Result 1173 states and 2190 transitions. [2022-11-03 02:23:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:52,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-03 02:23:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:52,856 INFO L225 Difference]: With dead ends: 1173 [2022-11-03 02:23:52,857 INFO L226 Difference]: Without dead ends: 1173 [2022-11-03 02:23:52,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:23:52,858 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 91 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:52,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 86 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 02:23:52,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-11-03 02:23:52,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1133. [2022-11-03 02:23:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 1122 states have (on average 1.8805704099821747) internal successors, (2110), 1132 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 2110 transitions. [2022-11-03 02:23:52,891 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 2110 transitions. Word has length 34 [2022-11-03 02:23:52,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:52,891 INFO L495 AbstractCegarLoop]: Abstraction has 1133 states and 2110 transitions. [2022-11-03 02:23:52,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 2110 transitions. [2022-11-03 02:23:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 02:23:52,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:52,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:23:52,894 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1927874016, now seen corresponding path program 2 times [2022-11-03 02:23:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:52,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576865382] [2022-11-03 02:23:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:52,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:55,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:55,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576865382] [2022-11-03 02:23:55,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576865382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:55,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:55,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-03 02:23:55,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604151811] [2022-11-03 02:23:55,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:55,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:23:55,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:55,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:23:55,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:23:55,709 INFO L87 Difference]: Start difference. First operand 1133 states and 2110 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:59,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:59,135 INFO L93 Difference]: Finished difference Result 1476 states and 2740 transitions. [2022-11-03 02:23:59,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:23:59,136 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-03 02:23:59,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:59,142 INFO L225 Difference]: With dead ends: 1476 [2022-11-03 02:23:59,142 INFO L226 Difference]: Without dead ends: 1476 [2022-11-03 02:23:59,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:23:59,144 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 124 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:59,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 42 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 02:23:59,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2022-11-03 02:23:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1120. [2022-11-03 02:23:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1109 states have (on average 1.87917042380523) internal successors, (2084), 1119 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 2084 transitions. [2022-11-03 02:23:59,212 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 2084 transitions. Word has length 34 [2022-11-03 02:23:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:59,213 INFO L495 AbstractCegarLoop]: Abstraction has 1120 states and 2084 transitions. [2022-11-03 02:23:59,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 2084 transitions. [2022-11-03 02:23:59,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 02:23:59,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:59,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:59,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:23:59,216 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:23:59,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:59,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1395609580, now seen corresponding path program 3 times [2022-11-03 02:23:59,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:59,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021098328] [2022-11-03 02:23:59,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:59,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:01,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:01,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021098328] [2022-11-03 02:24:01,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021098328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:01,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:01,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:24:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507947742] [2022-11-03 02:24:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:01,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:24:01,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:01,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:24:01,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:24:01,312 INFO L87 Difference]: Start difference. First operand 1120 states and 2084 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:04,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:04,532 INFO L93 Difference]: Finished difference Result 1450 states and 2688 transitions. [2022-11-03 02:24:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 02:24:04,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-03 02:24:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:04,538 INFO L225 Difference]: With dead ends: 1450 [2022-11-03 02:24:04,538 INFO L226 Difference]: Without dead ends: 1450 [2022-11-03 02:24:04,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-03 02:24:04,540 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 100 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:04,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 42 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:24:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-11-03 02:24:04,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1107. [2022-11-03 02:24:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1096 states have (on average 1.8777372262773722) internal successors, (2058), 1106 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 2058 transitions. [2022-11-03 02:24:04,584 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 2058 transitions. Word has length 34 [2022-11-03 02:24:04,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:04,585 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 2058 transitions. [2022-11-03 02:24:04,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 2058 transitions. [2022-11-03 02:24:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 02:24:04,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:04,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:04,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:24:04,588 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:04,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:04,589 INFO L85 PathProgramCache]: Analyzing trace with hash 929205438, now seen corresponding path program 4 times [2022-11-03 02:24:04,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:04,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042804927] [2022-11-03 02:24:04,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:04,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:07,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:07,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042804927] [2022-11-03 02:24:07,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042804927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:07,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:07,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:24:07,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915248472] [2022-11-03 02:24:07,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:07,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:24:07,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:07,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:24:07,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:24:07,125 INFO L87 Difference]: Start difference. First operand 1107 states and 2058 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:11,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:11,097 INFO L93 Difference]: Finished difference Result 1426 states and 2640 transitions. [2022-11-03 02:24:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:24:11,098 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-03 02:24:11,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:11,112 INFO L225 Difference]: With dead ends: 1426 [2022-11-03 02:24:11,112 INFO L226 Difference]: Without dead ends: 1426 [2022-11-03 02:24:11,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:24:11,114 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 82 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:11,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 44 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 02:24:11,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-11-03 02:24:11,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1107. [2022-11-03 02:24:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1096 states have (on average 1.8777372262773722) internal successors, (2058), 1106 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 2058 transitions. [2022-11-03 02:24:11,151 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 2058 transitions. Word has length 34 [2022-11-03 02:24:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:11,152 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 2058 transitions. [2022-11-03 02:24:11,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 2058 transitions. [2022-11-03 02:24:11,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 02:24:11,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:11,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:11,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 02:24:11,154 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:11,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:11,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1019728888, now seen corresponding path program 5 times [2022-11-03 02:24:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:11,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370008122] [2022-11-03 02:24:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:11,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:13,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:13,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370008122] [2022-11-03 02:24:13,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370008122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:13,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:13,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:24:13,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488858894] [2022-11-03 02:24:13,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:13,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:24:13,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:13,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:24:13,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:24:13,037 INFO L87 Difference]: Start difference. First operand 1107 states and 2058 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:16,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:16,788 INFO L93 Difference]: Finished difference Result 1427 states and 2642 transitions. [2022-11-03 02:24:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:24:16,789 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-03 02:24:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:16,794 INFO L225 Difference]: With dead ends: 1427 [2022-11-03 02:24:16,794 INFO L226 Difference]: Without dead ends: 1427 [2022-11-03 02:24:16,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:24:16,795 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 48 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:16,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 53 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 02:24:16,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2022-11-03 02:24:16,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1077. [2022-11-03 02:24:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1066 states have (on average 1.874296435272045) internal successors, (1998), 1076 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1998 transitions. [2022-11-03 02:24:16,823 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1998 transitions. Word has length 34 [2022-11-03 02:24:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:16,823 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1998 transitions. [2022-11-03 02:24:16,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:16,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1998 transitions. [2022-11-03 02:24:16,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:24:16,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:16,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:16,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 02:24:16,825 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:16,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:16,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1725529732, now seen corresponding path program 1 times [2022-11-03 02:24:16,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:16,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8338775] [2022-11-03 02:24:16,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:16,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:18,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:18,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8338775] [2022-11-03 02:24:18,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8338775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:18,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:18,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:24:18,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939807343] [2022-11-03 02:24:18,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:18,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:24:18,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:18,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:24:18,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:24:18,757 INFO L87 Difference]: Start difference. First operand 1077 states and 1998 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:22,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:22,483 INFO L93 Difference]: Finished difference Result 1826 states and 3386 transitions. [2022-11-03 02:24:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 02:24:22,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-11-03 02:24:22,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:22,487 INFO L225 Difference]: With dead ends: 1826 [2022-11-03 02:24:22,487 INFO L226 Difference]: Without dead ends: 1824 [2022-11-03 02:24:22,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:24:22,488 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 147 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:22,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 42 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 02:24:22,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2022-11-03 02:24:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1090. [2022-11-03 02:24:22,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1079 states have (on average 1.8748841519925856) internal successors, (2023), 1089 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:22,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 2023 transitions. [2022-11-03 02:24:22,521 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 2023 transitions. Word has length 36 [2022-11-03 02:24:22,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:22,522 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 2023 transitions. [2022-11-03 02:24:22,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 2023 transitions. [2022-11-03 02:24:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:24:22,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:22,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:22,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 02:24:22,524 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:22,525 INFO L85 PathProgramCache]: Analyzing trace with hash -246080306, now seen corresponding path program 2 times [2022-11-03 02:24:22,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:22,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046149257] [2022-11-03 02:24:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:22,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:24,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:24,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046149257] [2022-11-03 02:24:24,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046149257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:24,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:24,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:24:24,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091523239] [2022-11-03 02:24:24,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:24,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:24:24,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:24:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:24:24,210 INFO L87 Difference]: Start difference. First operand 1090 states and 2023 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:27,712 INFO L93 Difference]: Finished difference Result 1867 states and 3465 transitions. [2022-11-03 02:24:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-03 02:24:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-11-03 02:24:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:27,718 INFO L225 Difference]: With dead ends: 1867 [2022-11-03 02:24:27,718 INFO L226 Difference]: Without dead ends: 1865 [2022-11-03 02:24:27,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:24:27,719 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 228 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:27,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 37 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 02:24:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2022-11-03 02:24:27,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1106. [2022-11-03 02:24:27,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1095 states have (on average 1.8767123287671232) internal successors, (2055), 1105 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 2055 transitions. [2022-11-03 02:24:27,753 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 2055 transitions. Word has length 36 [2022-11-03 02:24:27,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:27,754 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 2055 transitions. [2022-11-03 02:24:27,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:27,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 2055 transitions. [2022-11-03 02:24:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:24:27,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:27,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:27,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 02:24:27,756 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:27,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:27,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2090847362, now seen corresponding path program 3 times [2022-11-03 02:24:27,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:27,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864012660] [2022-11-03 02:24:27,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:27,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:29,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:29,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864012660] [2022-11-03 02:24:29,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864012660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:29,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:29,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:24:29,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473837696] [2022-11-03 02:24:29,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:29,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:24:29,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:29,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:24:29,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:24:29,943 INFO L87 Difference]: Start difference. First operand 1106 states and 2055 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:31,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:34,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:34,871 INFO L93 Difference]: Finished difference Result 1902 states and 3534 transitions. [2022-11-03 02:24:34,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 02:24:34,872 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-11-03 02:24:34,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:34,879 INFO L225 Difference]: With dead ends: 1902 [2022-11-03 02:24:34,879 INFO L226 Difference]: Without dead ends: 1900 [2022-11-03 02:24:34,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:24:34,880 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 163 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:34,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 39 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-03 02:24:34,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-11-03 02:24:34,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1123. [2022-11-03 02:24:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1112 states have (on average 1.879496402877698) internal successors, (2090), 1122 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 2090 transitions. [2022-11-03 02:24:34,915 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 2090 transitions. Word has length 36 [2022-11-03 02:24:34,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:34,915 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 2090 transitions. [2022-11-03 02:24:34,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 2090 transitions. [2022-11-03 02:24:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:24:34,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:34,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:34,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 02:24:34,918 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:34,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1803248390, now seen corresponding path program 4 times [2022-11-03 02:24:34,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:34,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043808392] [2022-11-03 02:24:34,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:34,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:37,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:37,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043808392] [2022-11-03 02:24:37,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043808392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:37,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:37,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-03 02:24:37,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735390875] [2022-11-03 02:24:37,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:37,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:24:37,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:24:37,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:24:37,406 INFO L87 Difference]: Start difference. First operand 1123 states and 2090 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:41,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:41,086 INFO L93 Difference]: Finished difference Result 1112 states and 2069 transitions. [2022-11-03 02:24:41,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:24:41,087 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-11-03 02:24:41,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:41,090 INFO L225 Difference]: With dead ends: 1112 [2022-11-03 02:24:41,090 INFO L226 Difference]: Without dead ends: 1104 [2022-11-03 02:24:41,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:24:41,091 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 135 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:41,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 11 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 02:24:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-11-03 02:24:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1039. [2022-11-03 02:24:41,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1030 states have (on average 1.8689320388349515) internal successors, (1925), 1038 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:41,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1925 transitions. [2022-11-03 02:24:41,119 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1925 transitions. Word has length 36 [2022-11-03 02:24:41,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:41,119 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1925 transitions. [2022-11-03 02:24:41,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:41,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1925 transitions. [2022-11-03 02:24:41,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:24:41,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:41,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:41,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 02:24:41,122 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:41,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1128576214, now seen corresponding path program 1 times [2022-11-03 02:24:41,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:41,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64486179] [2022-11-03 02:24:41,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:41,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:43,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:43,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64486179] [2022-11-03 02:24:43,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64486179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:43,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:43,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:24:43,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884403982] [2022-11-03 02:24:43,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:43,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:24:43,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:43,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:24:43,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:43,105 INFO L87 Difference]: Start difference. First operand 1039 states and 1925 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:46,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:46,932 INFO L93 Difference]: Finished difference Result 1033 states and 1913 transitions. [2022-11-03 02:24:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:24:46,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-11-03 02:24:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:46,935 INFO L225 Difference]: With dead ends: 1033 [2022-11-03 02:24:46,935 INFO L226 Difference]: Without dead ends: 1033 [2022-11-03 02:24:46,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:24:46,936 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 234 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:46,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 125 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 02:24:46,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-11-03 02:24:46,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1009. [2022-11-03 02:24:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1000 states have (on average 1.871) internal successors, (1871), 1008 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1871 transitions. [2022-11-03 02:24:46,962 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1871 transitions. Word has length 36 [2022-11-03 02:24:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:46,962 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1871 transitions. [2022-11-03 02:24:46,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1871 transitions. [2022-11-03 02:24:46,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 02:24:46,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:46,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:46,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-03 02:24:46,965 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:46,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:46,965 INFO L85 PathProgramCache]: Analyzing trace with hash -790386507, now seen corresponding path program 1 times [2022-11-03 02:24:46,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:46,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469749417] [2022-11-03 02:24:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:46,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:48,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:48,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469749417] [2022-11-03 02:24:48,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469749417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:48,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:48,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:24:48,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932618038] [2022-11-03 02:24:48,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:48,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:24:48,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:48,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:24:48,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:24:48,374 INFO L87 Difference]: Start difference. First operand 1009 states and 1871 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:50,360 INFO L93 Difference]: Finished difference Result 1132 states and 2102 transitions. [2022-11-03 02:24:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 02:24:50,361 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-03 02:24:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:50,364 INFO L225 Difference]: With dead ends: 1132 [2022-11-03 02:24:50,365 INFO L226 Difference]: Without dead ends: 1132 [2022-11-03 02:24:50,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:24:50,366 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 121 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:50,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 42 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 02:24:50,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-11-03 02:24:50,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1047. [2022-11-03 02:24:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1038 states have (on average 1.8757225433526012) internal successors, (1947), 1046 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:50,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1947 transitions. [2022-11-03 02:24:50,394 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1947 transitions. Word has length 38 [2022-11-03 02:24:50,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:50,394 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1947 transitions. [2022-11-03 02:24:50,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:50,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1947 transitions. [2022-11-03 02:24:50,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 02:24:50,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:50,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:50,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-03 02:24:50,397 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:50,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:50,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1128936085, now seen corresponding path program 2 times [2022-11-03 02:24:50,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:50,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714100949] [2022-11-03 02:24:50,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:50,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:51,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:51,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714100949] [2022-11-03 02:24:51,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714100949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:51,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:51,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:24:51,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567930098] [2022-11-03 02:24:51,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:51,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:24:51,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:51,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:24:51,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:24:51,811 INFO L87 Difference]: Start difference. First operand 1047 states and 1947 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:54,779 INFO L93 Difference]: Finished difference Result 1142 states and 2122 transitions. [2022-11-03 02:24:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:24:54,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-03 02:24:54,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:54,783 INFO L225 Difference]: With dead ends: 1142 [2022-11-03 02:24:54,783 INFO L226 Difference]: Without dead ends: 1142 [2022-11-03 02:24:54,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:24:54,784 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 94 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:54,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 56 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:24:54,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-11-03 02:24:54,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1046. [2022-11-03 02:24:54,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1037 states have (on average 1.875602700096432) internal successors, (1945), 1045 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1945 transitions. [2022-11-03 02:24:54,812 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1945 transitions. Word has length 38 [2022-11-03 02:24:54,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:54,813 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1945 transitions. [2022-11-03 02:24:54,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:54,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1945 transitions. [2022-11-03 02:24:54,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 02:24:54,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:54,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:54,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-03 02:24:54,816 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-03 02:24:54,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:54,816 INFO L85 PathProgramCache]: Analyzing trace with hash -916626763, now seen corresponding path program 3 times [2022-11-03 02:24:54,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:54,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080121428] [2022-11-03 02:24:54,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:54,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:56,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:56,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080121428] [2022-11-03 02:24:56,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080121428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:56,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:56,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:24:56,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066691132] [2022-11-03 02:24:56,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:56,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:24:56,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:56,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:24:56,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:24:56,281 INFO L87 Difference]: Start difference. First operand 1046 states and 1945 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)