./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:47:56,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:47:56,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:47:56,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:47:56,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:47:56,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:47:56,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:47:56,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:47:56,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:47:56,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:47:56,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:47:56,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:47:56,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:47:56,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:47:56,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:47:56,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:47:56,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:47:56,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:47:56,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:47:56,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:47:56,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:47:56,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:47:56,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:47:56,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:47:56,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:47:56,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:47:56,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:47:56,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:47:56,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:47:56,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:47:56,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:47:56,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:47:56,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:47:56,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:47:56,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:47:56,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:47:56,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:47:56,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:47:56,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:47:56,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:47:56,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:47:56,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:47:56,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:47:56,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:47:56,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:47:56,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:47:56,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:47:56,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:47:56,542 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:47:56,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:47:56,542 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:47:56,543 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:47:56,544 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:47:56,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:47:56,545 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:47:56,545 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:47:56,545 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:47:56,546 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:47:56,546 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:47:56,546 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:47:56,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:47:56,548 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:47:56,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:47:56,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:47:56,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:47:56,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:47:56,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:47:56,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:47:56,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:47:56,551 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:47:56,551 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:47:56,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:47:56,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:47:56,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:47:56,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:47:56,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:47:56,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:47:56,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:47:56,556 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:47:56,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:47:56,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:47:56,557 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:47:56,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:47:56,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:47:56,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:47:56,558 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_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-26 00:47:56,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:47:56,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:47:56,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:47:56,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:47:56,929 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:47:56,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-26 00:48:00,567 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:48:00,888 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:48:00,889 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-26 00:48:00,910 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/data/2aa30544c/2b6fa1ae48fb451daf4366513a173167/FLAG8435b9dbe [2022-11-26 00:48:00,928 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/data/2aa30544c/2b6fa1ae48fb451daf4366513a173167 [2022-11-26 00:48:00,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:48:00,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:48:00,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:48:00,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:48:00,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:48:00,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:48:00" (1/1) ... [2022-11-26 00:48:00,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e826c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:00, skipping insertion in model container [2022-11-26 00:48:00,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:48:00" (1/1) ... [2022-11-26 00:48:00,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:48:01,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:48:01,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:48:01,850 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:48:01,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:48:02,024 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:48:02,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02 WrapperNode [2022-11-26 00:48:02,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:48:02,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:48:02,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:48:02,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:48:02,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,118 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2022-11-26 00:48:02,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:48:02,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:48:02,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:48:02,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:48:02,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,166 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:48:02,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:48:02,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:48:02,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:48:02,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (1/1) ... [2022-11-26 00:48:02,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:48:02,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:48:02,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:48:02,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:48:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:48:02,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:48:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:48:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:48:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:48:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:48:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:48:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:48:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:48:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:48:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:48:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:48:02,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:48:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:48:02,270 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:48:02,482 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:48:02,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:48:03,168 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:48:03,187 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:48:03,187 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:48:03,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:48:03 BoogieIcfgContainer [2022-11-26 00:48:03,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:48:03,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:48:03,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:48:03,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:48:03,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:48:00" (1/3) ... [2022-11-26 00:48:03,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce7f3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:48:03, skipping insertion in model container [2022-11-26 00:48:03,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:02" (2/3) ... [2022-11-26 00:48:03,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce7f3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:48:03, skipping insertion in model container [2022-11-26 00:48:03,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:48:03" (3/3) ... [2022-11-26 00:48:03,201 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-26 00:48:03,211 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:48:03,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:48:03,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-26 00:48:03,225 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:48:03,338 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:48:03,383 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:48:03,399 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 204 transitions, 413 flow [2022-11-26 00:48:03,403 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 204 transitions, 413 flow [2022-11-26 00:48:03,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 204 transitions, 413 flow [2022-11-26 00:48:03,494 INFO L130 PetriNetUnfolder]: 0/203 cut-off events. [2022-11-26 00:48:03,494 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:48:03,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-26 00:48:03,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 4288 [2022-11-26 00:48:33,123 WARN L233 SmtUtils]: Spent 6.78s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:48:43,015 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:50:27,434 WARN L233 SmtUtils]: Spent 1.65m on a formula simplification. DAG size of input: 196 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:50:50,774 WARN L233 SmtUtils]: Spent 23.34s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:51:37,161 WARN L233 SmtUtils]: Spent 46.38s on a formula simplification. DAG size of input: 196 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:51:53,076 WARN L233 SmtUtils]: Spent 15.91s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:52:42,031 WARN L233 SmtUtils]: Spent 48.69s on a formula simplification. DAG size of input: 285 DAG size of output: 279 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:53:28,350 WARN L233 SmtUtils]: Spent 46.31s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:54:14,189 WARN L233 SmtUtils]: Spent 45.83s on a formula simplification. DAG size of input: 285 DAG size of output: 279 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:54:35,085 WARN L233 SmtUtils]: Spent 20.88s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:54:35,461 INFO L134 LiptonReduction]: Checked pairs total: 59739 [2022-11-26 00:54:35,461 INFO L136 LiptonReduction]: Total number of compositions: 208 [2022-11-26 00:54:35,478 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 68 transitions, 141 flow [2022-11-26 00:54:35,557 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 764 states, 725 states have (on average 2.0124137931034483) internal successors, (1459), 763 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:35,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:54:35,596 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66b32048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:54:35,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-26 00:54:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 764 states, 725 states have (on average 2.0124137931034483) internal successors, (1459), 763 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:35,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:54:35,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:35,615 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:54:35,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:35,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:35,629 INFO L85 PathProgramCache]: Analyzing trace with hash 687, now seen corresponding path program 1 times [2022-11-26 00:54:35,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:35,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985296310] [2022-11-26 00:54:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:35,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:35,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:35,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985296310] [2022-11-26 00:54:35,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985296310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:35,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:35,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:54:35,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311361261] [2022-11-26 00:54:35,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:35,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:54:35,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:35,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:54:35,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:54:35,886 INFO L87 Difference]: Start difference. First operand has 764 states, 725 states have (on average 2.0124137931034483) internal successors, (1459), 763 states have internal predecessors, (1459), 0 states have call successors, (0), 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) [2022-11-26 00:54:36,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:36,083 INFO L93 Difference]: Finished difference Result 680 states and 1302 transitions. [2022-11-26 00:54:36,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:54:36,087 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 [2022-11-26 00:54:36,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:36,113 INFO L225 Difference]: With dead ends: 680 [2022-11-26 00:54:36,114 INFO L226 Difference]: Without dead ends: 680 [2022-11-26 00:54:36,115 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 [2022-11-26 00:54:36,127 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:36,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:54:36,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-11-26 00:54:36,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2022-11-26 00:54:36,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 663 states have (on average 1.9638009049773755) internal successors, (1302), 679 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1302 transitions. [2022-11-26 00:54:36,251 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1302 transitions. Word has length 1 [2022-11-26 00:54:36,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:36,252 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1302 transitions. [2022-11-26 00:54:36,252 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) [2022-11-26 00:54:36,254 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1302 transitions. [2022-11-26 00:54:36,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:54:36,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:36,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:36,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:54:36,262 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:36,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:36,263 INFO L85 PathProgramCache]: Analyzing trace with hash 689972269, now seen corresponding path program 1 times [2022-11-26 00:54:36,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:36,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104666007] [2022-11-26 00:54:36,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:36,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:37,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:37,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104666007] [2022-11-26 00:54:37,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104666007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:37,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:37,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:54:37,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731008419] [2022-11-26 00:54:37,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:37,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:54:37,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:54:37,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:54:37,355 INFO L87 Difference]: Start difference. First operand 680 states and 1302 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) [2022-11-26 00:54:37,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:37,895 INFO L93 Difference]: Finished difference Result 737 states and 1412 transitions. [2022-11-26 00:54:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:54:37,896 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 [2022-11-26 00:54:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:37,900 INFO L225 Difference]: With dead ends: 737 [2022-11-26 00:54:37,901 INFO L226 Difference]: Without dead ends: 737 [2022-11-26 00:54:37,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:54:37,902 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 36 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:37,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 32 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:54:37,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-11-26 00:54:37,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2022-11-26 00:54:37,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 720 states have (on average 1.961111111111111) internal successors, (1412), 736 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1412 transitions. [2022-11-26 00:54:37,933 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1412 transitions. Word has length 9 [2022-11-26 00:54:37,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:37,933 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1412 transitions. [2022-11-26 00:54:37,934 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) [2022-11-26 00:54:37,934 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1412 transitions. [2022-11-26 00:54:37,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:54:37,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:37,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:37,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:54:37,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:37,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:37,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1791650628, now seen corresponding path program 1 times [2022-11-26 00:54:37,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:37,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529437073] [2022-11-26 00:54:37,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:37,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:38,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:38,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529437073] [2022-11-26 00:54:38,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529437073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:38,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:38,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:54:38,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051711140] [2022-11-26 00:54:38,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:38,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:54:38,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:38,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:54:38,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:54:38,555 INFO L87 Difference]: Start difference. First operand 737 states and 1412 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) [2022-11-26 00:54:39,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:39,777 INFO L93 Difference]: Finished difference Result 1270 states and 2420 transitions. [2022-11-26 00:54:39,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:54:39,778 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 [2022-11-26 00:54:39,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:39,787 INFO L225 Difference]: With dead ends: 1270 [2022-11-26 00:54:39,787 INFO L226 Difference]: Without dead ends: 1270 [2022-11-26 00:54:39,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:54:39,789 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 95 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:39,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 28 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:54:39,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-11-26 00:54:39,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 842. [2022-11-26 00:54:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 828 states have (on average 1.958937198067633) internal successors, (1622), 841 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:39,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1622 transitions. [2022-11-26 00:54:39,828 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1622 transitions. Word has length 9 [2022-11-26 00:54:39,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:39,828 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1622 transitions. [2022-11-26 00:54:39,829 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) [2022-11-26 00:54:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1622 transitions. [2022-11-26 00:54:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:54:39,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:39,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:39,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:54:39,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:39,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1220050199, now seen corresponding path program 1 times [2022-11-26 00:54:39,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:39,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184434264] [2022-11-26 00:54:39,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:39,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:40,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:40,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184434264] [2022-11-26 00:54:40,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184434264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:40,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:40,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:54:40,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458460166] [2022-11-26 00:54:40,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:40,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:54:40,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:40,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:54:40,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:54:40,663 INFO L87 Difference]: Start difference. First operand 842 states and 1622 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:42,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:42,434 INFO L93 Difference]: Finished difference Result 1208 states and 2279 transitions. [2022-11-26 00:54:42,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:54:42,435 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:54:42,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:42,441 INFO L225 Difference]: With dead ends: 1208 [2022-11-26 00:54:42,441 INFO L226 Difference]: Without dead ends: 1208 [2022-11-26 00:54:42,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:54:42,443 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 240 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:42,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 28 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:54:42,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-11-26 00:54:42,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 862. [2022-11-26 00:54:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 848 states have (on average 1.9599056603773586) internal successors, (1662), 861 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:42,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1662 transitions. [2022-11-26 00:54:42,478 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1662 transitions. Word has length 12 [2022-11-26 00:54:42,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:42,479 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 1662 transitions. [2022-11-26 00:54:42,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:42,479 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1662 transitions. [2022-11-26 00:54:42,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:54:42,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:42,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:42,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:54:42,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:42,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1135382930, now seen corresponding path program 1 times [2022-11-26 00:54:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:42,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133972643] [2022-11-26 00:54:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:42,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:43,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:43,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:43,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133972643] [2022-11-26 00:54:43,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133972643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:43,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:43,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:54:43,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559581252] [2022-11-26 00:54:43,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:43,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:54:43,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:43,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:54:43,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:54:43,256 INFO L87 Difference]: Start difference. First operand 862 states and 1662 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:44,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:44,261 INFO L93 Difference]: Finished difference Result 885 states and 1674 transitions. [2022-11-26 00:54:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:54:44,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:54:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:44,267 INFO L225 Difference]: With dead ends: 885 [2022-11-26 00:54:44,267 INFO L226 Difference]: Without dead ends: 885 [2022-11-26 00:54:44,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:44,269 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 173 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:44,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 36 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:54:44,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2022-11-26 00:54:44,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 812. [2022-11-26 00:54:44,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 799 states have (on average 1.9549436795994994) internal successors, (1562), 811 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1562 transitions. [2022-11-26 00:54:44,297 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1562 transitions. Word has length 12 [2022-11-26 00:54:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:44,298 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 1562 transitions. [2022-11-26 00:54:44,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1562 transitions. [2022-11-26 00:54:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:54:44,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:44,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:44,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:54:44,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:44,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:44,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1390357507, now seen corresponding path program 2 times [2022-11-26 00:54:44,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:44,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274563198] [2022-11-26 00:54:44,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:44,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:45,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:45,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274563198] [2022-11-26 00:54:45,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274563198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:45,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:45,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:54:45,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838931268] [2022-11-26 00:54:45,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:45,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:54:45,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:45,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:54:45,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:54:45,008 INFO L87 Difference]: Start difference. First operand 812 states and 1562 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:46,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:46,676 INFO L93 Difference]: Finished difference Result 1554 states and 2970 transitions. [2022-11-26 00:54:46,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:54:46,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:54:46,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:46,685 INFO L225 Difference]: With dead ends: 1554 [2022-11-26 00:54:46,685 INFO L226 Difference]: Without dead ends: 1554 [2022-11-26 00:54:46,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:46,688 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 172 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:46,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 39 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:54:46,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-11-26 00:54:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 797. [2022-11-26 00:54:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 784 states have (on average 1.9540816326530612) internal successors, (1532), 796 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:46,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1532 transitions. [2022-11-26 00:54:46,724 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1532 transitions. Word has length 12 [2022-11-26 00:54:46,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:46,724 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1532 transitions. [2022-11-26 00:54:46,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:46,725 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1532 transitions. [2022-11-26 00:54:46,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:54:46,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:46,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:46,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:54:46,732 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:46,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:46,732 INFO L85 PathProgramCache]: Analyzing trace with hash -118610647, now seen corresponding path program 3 times [2022-11-26 00:54:46,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:46,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165531620] [2022-11-26 00:54:46,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:46,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:47,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:47,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165531620] [2022-11-26 00:54:47,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165531620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:47,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:47,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:54:47,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922574896] [2022-11-26 00:54:47,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:47,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:54:47,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:47,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:54:47,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:54:47,460 INFO L87 Difference]: Start difference. First operand 797 states and 1532 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:49,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:49,414 INFO L93 Difference]: Finished difference Result 1553 states and 2968 transitions. [2022-11-26 00:54:49,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:54:49,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:54:49,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:49,424 INFO L225 Difference]: With dead ends: 1553 [2022-11-26 00:54:49,424 INFO L226 Difference]: Without dead ends: 1553 [2022-11-26 00:54:49,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:54:49,425 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 187 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:49,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 40 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:54:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2022-11-26 00:54:49,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 781. [2022-11-26 00:54:49,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 768 states have (on average 1.953125) internal successors, (1500), 780 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:49,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1500 transitions. [2022-11-26 00:54:49,459 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1500 transitions. Word has length 12 [2022-11-26 00:54:49,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:49,460 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1500 transitions. [2022-11-26 00:54:49,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1500 transitions. [2022-11-26 00:54:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:54:49,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:49,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:49,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:54:49,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:49,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:49,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1197940925, now seen corresponding path program 4 times [2022-11-26 00:54:49,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:49,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519580726] [2022-11-26 00:54:49,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:49,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:50,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:50,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519580726] [2022-11-26 00:54:50,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519580726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:50,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:50,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:54:50,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21173725] [2022-11-26 00:54:50,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:50,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:54:50,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:50,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:54:50,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:54:50,095 INFO L87 Difference]: Start difference. First operand 781 states and 1500 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:52,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:52,012 INFO L93 Difference]: Finished difference Result 1490 states and 2845 transitions. [2022-11-26 00:54:52,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:54:52,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:54:52,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:52,020 INFO L225 Difference]: With dead ends: 1490 [2022-11-26 00:54:52,020 INFO L226 Difference]: Without dead ends: 1490 [2022-11-26 00:54:52,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:54:52,021 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 178 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:52,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 44 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:54:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-11-26 00:54:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 727. [2022-11-26 00:54:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 715 states have (on average 1.951048951048951) internal successors, (1395), 726 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:52,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1395 transitions. [2022-11-26 00:54:52,052 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1395 transitions. Word has length 12 [2022-11-26 00:54:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:52,053 INFO L495 AbstractCegarLoop]: Abstraction has 727 states and 1395 transitions. [2022-11-26 00:54:52,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:52,053 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1395 transitions. [2022-11-26 00:54:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:54:52,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:52,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:52,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:54:52,055 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:52,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:52,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2110527091, now seen corresponding path program 1 times [2022-11-26 00:54:52,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:52,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974971636] [2022-11-26 00:54:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:52,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:52,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:52,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:52,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974971636] [2022-11-26 00:54:52,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974971636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:52,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:52,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:54:52,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569550500] [2022-11-26 00:54:52,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:52,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:54:52,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:52,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:54:52,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:54:52,546 INFO L87 Difference]: Start difference. First operand 727 states and 1395 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) [2022-11-26 00:54:53,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:53,214 INFO L93 Difference]: Finished difference Result 780 states and 1497 transitions. [2022-11-26 00:54:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:54:53,215 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 [2022-11-26 00:54:53,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:53,220 INFO L225 Difference]: With dead ends: 780 [2022-11-26 00:54:53,220 INFO L226 Difference]: Without dead ends: 780 [2022-11-26 00:54:53,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:54:53,221 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 32 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:53,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 33 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:54:53,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-11-26 00:54:53,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2022-11-26 00:54:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 768 states have (on average 1.94921875) internal successors, (1497), 779 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1497 transitions. [2022-11-26 00:54:53,246 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1497 transitions. Word has length 15 [2022-11-26 00:54:53,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:53,247 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1497 transitions. [2022-11-26 00:54:53,247 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) [2022-11-26 00:54:53,248 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1497 transitions. [2022-11-26 00:54:53,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:54:53,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:53,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:53,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:54:53,249 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:53,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:53,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1683064875, now seen corresponding path program 1 times [2022-11-26 00:54:53,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:53,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841639727] [2022-11-26 00:54:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:53,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:53,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841639727] [2022-11-26 00:54:53,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841639727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:53,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:53,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:54:53,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187323990] [2022-11-26 00:54:53,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:53,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:54:53,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:53,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:54:53,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:54:53,693 INFO L87 Difference]: Start difference. First operand 780 states and 1497 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) [2022-11-26 00:54:54,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:54,320 INFO L93 Difference]: Finished difference Result 1025 states and 1940 transitions. [2022-11-26 00:54:54,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:54:54,320 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 [2022-11-26 00:54:54,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:54,325 INFO L225 Difference]: With dead ends: 1025 [2022-11-26 00:54:54,325 INFO L226 Difference]: Without dead ends: 999 [2022-11-26 00:54:54,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:54:54,326 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 70 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:54,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 40 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:54:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-11-26 00:54:54,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 885. [2022-11-26 00:54:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 873 states have (on average 1.9484536082474226) internal successors, (1701), 884 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1701 transitions. [2022-11-26 00:54:54,354 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1701 transitions. Word has length 15 [2022-11-26 00:54:54,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:54,355 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1701 transitions. [2022-11-26 00:54:54,355 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) [2022-11-26 00:54:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1701 transitions. [2022-11-26 00:54:54,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:54:54,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:54,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:54,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:54:54,357 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:54,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:54,358 INFO L85 PathProgramCache]: Analyzing trace with hash -529367384, now seen corresponding path program 1 times [2022-11-26 00:54:54,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:54,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394883086] [2022-11-26 00:54:54,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:54,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:55,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:55,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394883086] [2022-11-26 00:54:55,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394883086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:55,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:55,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:54:55,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842984065] [2022-11-26 00:54:55,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:55,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:54:55,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:55,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:54:55,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:54:55,479 INFO L87 Difference]: Start difference. First operand 885 states and 1701 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:58,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:58,423 INFO L93 Difference]: Finished difference Result 1829 states and 3450 transitions. [2022-11-26 00:54:58,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:54:58,424 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:54:58,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:58,430 INFO L225 Difference]: With dead ends: 1829 [2022-11-26 00:54:58,430 INFO L226 Difference]: Without dead ends: 1829 [2022-11-26 00:54:58,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:54:58,431 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 329 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:58,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 178 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-26 00:54:58,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2022-11-26 00:54:58,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1056. [2022-11-26 00:54:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1044 states have (on average 1.960727969348659) internal successors, (2047), 1055 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 2047 transitions. [2022-11-26 00:54:58,472 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 2047 transitions. Word has length 18 [2022-11-26 00:54:58,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:58,472 INFO L495 AbstractCegarLoop]: Abstraction has 1056 states and 2047 transitions. [2022-11-26 00:54:58,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:58,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 2047 transitions. [2022-11-26 00:54:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:54:58,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:58,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:58,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:54:58,475 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:54:58,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:58,475 INFO L85 PathProgramCache]: Analyzing trace with hash -51424041, now seen corresponding path program 1 times [2022-11-26 00:54:58,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:58,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339084207] [2022-11-26 00:54:58,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:58,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:59,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:59,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339084207] [2022-11-26 00:54:59,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339084207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:59,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:59,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:54:59,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467810725] [2022-11-26 00:54:59,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:59,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:54:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:59,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:54:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:54:59,452 INFO L87 Difference]: Start difference. First operand 1056 states and 2047 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:02,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:02,246 INFO L93 Difference]: Finished difference Result 1594 states and 3037 transitions. [2022-11-26 00:55:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-26 00:55:02,246 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:02,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:02,255 INFO L225 Difference]: With dead ends: 1594 [2022-11-26 00:55:02,256 INFO L226 Difference]: Without dead ends: 1594 [2022-11-26 00:55:02,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=451, Invalid=1189, Unknown=0, NotChecked=0, Total=1640 [2022-11-26 00:55:02,257 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 307 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:02,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 107 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:55:02,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2022-11-26 00:55:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1040. [2022-11-26 00:55:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1028 states have (on average 1.956225680933852) internal successors, (2011), 1039 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:02,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 2011 transitions. [2022-11-26 00:55:02,295 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 2011 transitions. Word has length 18 [2022-11-26 00:55:02,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:02,296 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 2011 transitions. [2022-11-26 00:55:02,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:02,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 2011 transitions. [2022-11-26 00:55:02,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:02,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:02,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:02,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:55:02,298 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:02,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1308628606, now seen corresponding path program 1 times [2022-11-26 00:55:02,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:02,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205832105] [2022-11-26 00:55:02,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:02,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:02,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:02,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:02,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205832105] [2022-11-26 00:55:02,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205832105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:02,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:02,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:55:02,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640461259] [2022-11-26 00:55:02,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:02,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:55:02,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:55:02,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:55:02,904 INFO L87 Difference]: Start difference. First operand 1040 states and 2011 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:03,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:03,740 INFO L93 Difference]: Finished difference Result 1066 states and 2030 transitions. [2022-11-26 00:55:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:55:03,741 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:03,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:03,747 INFO L225 Difference]: With dead ends: 1066 [2022-11-26 00:55:03,748 INFO L226 Difference]: Without dead ends: 1066 [2022-11-26 00:55:03,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:03,748 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 156 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:03,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 35 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:55:03,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-11-26 00:55:03,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 992. [2022-11-26 00:55:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 980 states have (on average 1.9540816326530612) internal successors, (1915), 991 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1915 transitions. [2022-11-26 00:55:03,778 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1915 transitions. Word has length 18 [2022-11-26 00:55:03,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:03,779 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1915 transitions. [2022-11-26 00:55:03,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:03,779 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1915 transitions. [2022-11-26 00:55:03,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:03,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:03,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:03,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:55:03,781 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:03,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:03,781 INFO L85 PathProgramCache]: Analyzing trace with hash -859622488, now seen corresponding path program 2 times [2022-11-26 00:55:03,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:03,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348624423] [2022-11-26 00:55:03,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:03,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:04,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:04,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348624423] [2022-11-26 00:55:04,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348624423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:04,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:04,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:04,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161723026] [2022-11-26 00:55:04,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:04,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:04,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:04,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:04,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:04,893 INFO L87 Difference]: Start difference. First operand 992 states and 1915 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:07,078 INFO L93 Difference]: Finished difference Result 2118 states and 4039 transitions. [2022-11-26 00:55:07,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:55:07,079 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:07,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:07,084 INFO L225 Difference]: With dead ends: 2118 [2022-11-26 00:55:07,084 INFO L226 Difference]: Without dead ends: 2118 [2022-11-26 00:55:07,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:55:07,085 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 255 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:07,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 292 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:55:07,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2022-11-26 00:55:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1013. [2022-11-26 00:55:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1001 states have (on average 1.959040959040959) internal successors, (1961), 1012 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:07,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1961 transitions. [2022-11-26 00:55:07,125 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1961 transitions. Word has length 18 [2022-11-26 00:55:07,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:07,126 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1961 transitions. [2022-11-26 00:55:07,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:07,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1961 transitions. [2022-11-26 00:55:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:07,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:07,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:07,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:55:07,128 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:07,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:07,128 INFO L85 PathProgramCache]: Analyzing trace with hash -381679145, now seen corresponding path program 2 times [2022-11-26 00:55:07,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:07,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826018385] [2022-11-26 00:55:07,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:07,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:07,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:07,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826018385] [2022-11-26 00:55:07,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826018385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:07,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:07,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:07,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982072483] [2022-11-26 00:55:07,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:07,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:07,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:07,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:07,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:07,881 INFO L87 Difference]: Start difference. First operand 1013 states and 1961 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:10,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:10,454 INFO L93 Difference]: Finished difference Result 2014 states and 3879 transitions. [2022-11-26 00:55:10,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-26 00:55:10,455 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:10,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:10,464 INFO L225 Difference]: With dead ends: 2014 [2022-11-26 00:55:10,465 INFO L226 Difference]: Without dead ends: 2014 [2022-11-26 00:55:10,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=235, Invalid=757, Unknown=0, NotChecked=0, Total=992 [2022-11-26 00:55:10,466 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 224 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:10,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 257 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-26 00:55:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2022-11-26 00:55:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 989. [2022-11-26 00:55:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 977 states have (on average 1.9580348004094166) internal successors, (1913), 988 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1913 transitions. [2022-11-26 00:55:10,503 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1913 transitions. Word has length 18 [2022-11-26 00:55:10,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:10,504 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1913 transitions. [2022-11-26 00:55:10,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1913 transitions. [2022-11-26 00:55:10,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:10,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:10,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:10,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:55:10,506 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:10,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:10,507 INFO L85 PathProgramCache]: Analyzing trace with hash 749796135, now seen corresponding path program 3 times [2022-11-26 00:55:10,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:10,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184174084] [2022-11-26 00:55:10,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:10,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:11,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:11,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184174084] [2022-11-26 00:55:11,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184174084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:11,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:11,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:11,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232274294] [2022-11-26 00:55:11,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:11,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:11,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:11,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:11,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:11,708 INFO L87 Difference]: Start difference. First operand 989 states and 1913 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:13,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:13,467 INFO L93 Difference]: Finished difference Result 1870 states and 3659 transitions. [2022-11-26 00:55:13,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:55:13,468 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:13,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:13,476 INFO L225 Difference]: With dead ends: 1870 [2022-11-26 00:55:13,476 INFO L226 Difference]: Without dead ends: 1870 [2022-11-26 00:55:13,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:55:13,477 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 133 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:13,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 149 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:55:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2022-11-26 00:55:13,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 984. [2022-11-26 00:55:13,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 972 states have (on average 1.9578189300411524) internal successors, (1903), 983 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:13,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1903 transitions. [2022-11-26 00:55:13,512 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1903 transitions. Word has length 18 [2022-11-26 00:55:13,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:13,512 INFO L495 AbstractCegarLoop]: Abstraction has 984 states and 1903 transitions. [2022-11-26 00:55:13,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1903 transitions. [2022-11-26 00:55:13,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:13,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:13,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:13,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:55:13,515 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:13,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:13,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1626514951, now seen corresponding path program 4 times [2022-11-26 00:55:13,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:13,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847395623] [2022-11-26 00:55:13,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:13,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:14,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:14,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847395623] [2022-11-26 00:55:14,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847395623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:14,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:14,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:14,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807750325] [2022-11-26 00:55:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:14,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:14,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:14,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:14,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:14,528 INFO L87 Difference]: Start difference. First operand 984 states and 1903 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:16,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:16,140 INFO L93 Difference]: Finished difference Result 1890 states and 3697 transitions. [2022-11-26 00:55:16,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:55:16,141 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:16,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:16,148 INFO L225 Difference]: With dead ends: 1890 [2022-11-26 00:55:16,148 INFO L226 Difference]: Without dead ends: 1890 [2022-11-26 00:55:16,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:55:16,149 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 140 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:16,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 143 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:55:16,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2022-11-26 00:55:16,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 979. [2022-11-26 00:55:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 967 states have (on average 1.9576008273009307) internal successors, (1893), 978 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1893 transitions. [2022-11-26 00:55:16,184 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1893 transitions. Word has length 18 [2022-11-26 00:55:16,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:16,184 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1893 transitions. [2022-11-26 00:55:16,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1893 transitions. [2022-11-26 00:55:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:16,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:16,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:16,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:55:16,187 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:16,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:16,187 INFO L85 PathProgramCache]: Analyzing trace with hash -372470105, now seen corresponding path program 5 times [2022-11-26 00:55:16,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:16,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732643706] [2022-11-26 00:55:16,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:16,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:17,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:17,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732643706] [2022-11-26 00:55:17,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732643706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:17,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:17,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:17,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682479444] [2022-11-26 00:55:17,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:17,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:17,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:17,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:17,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:17,336 INFO L87 Difference]: Start difference. First operand 979 states and 1893 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:19,509 INFO L93 Difference]: Finished difference Result 1910 states and 3735 transitions. [2022-11-26 00:55:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:55:19,510 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:19,516 INFO L225 Difference]: With dead ends: 1910 [2022-11-26 00:55:19,516 INFO L226 Difference]: Without dead ends: 1910 [2022-11-26 00:55:19,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=587, Unknown=0, NotChecked=0, Total=812 [2022-11-26 00:55:19,517 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 141 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:19,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 152 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:55:19,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2022-11-26 00:55:19,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 974. [2022-11-26 00:55:19,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 962 states have (on average 1.9573804573804574) internal successors, (1883), 973 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1883 transitions. [2022-11-26 00:55:19,552 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1883 transitions. Word has length 18 [2022-11-26 00:55:19,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:19,553 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1883 transitions. [2022-11-26 00:55:19,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:19,553 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1883 transitions. [2022-11-26 00:55:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:19,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:19,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:19,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:55:19,555 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:19,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:19,556 INFO L85 PathProgramCache]: Analyzing trace with hash -468684153, now seen corresponding path program 6 times [2022-11-26 00:55:19,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:19,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51890171] [2022-11-26 00:55:19,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:19,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:20,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:20,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51890171] [2022-11-26 00:55:20,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51890171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:20,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:20,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:20,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567748925] [2022-11-26 00:55:20,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:20,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:20,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:20,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:20,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:20,443 INFO L87 Difference]: Start difference. First operand 974 states and 1883 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:22,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:22,574 INFO L93 Difference]: Finished difference Result 1990 states and 3885 transitions. [2022-11-26 00:55:22,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-26 00:55:22,574 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:22,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:22,580 INFO L225 Difference]: With dead ends: 1990 [2022-11-26 00:55:22,580 INFO L226 Difference]: Without dead ends: 1990 [2022-11-26 00:55:22,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2022-11-26 00:55:22,582 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 173 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:22,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 117 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:55:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2022-11-26 00:55:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 937. [2022-11-26 00:55:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 925 states have (on average 1.9513513513513514) internal successors, (1805), 936 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:22,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1805 transitions. [2022-11-26 00:55:22,615 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1805 transitions. Word has length 18 [2022-11-26 00:55:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:22,615 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1805 transitions. [2022-11-26 00:55:22,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1805 transitions. [2022-11-26 00:55:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:22,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:22,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:22,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:55:22,617 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:22,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1896853656, now seen corresponding path program 3 times [2022-11-26 00:55:22,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:22,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002926437] [2022-11-26 00:55:22,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:23,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:23,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002926437] [2022-11-26 00:55:23,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002926437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:23,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:23,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:23,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711963730] [2022-11-26 00:55:23,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:23,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:23,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:23,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:23,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:23,447 INFO L87 Difference]: Start difference. First operand 937 states and 1805 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:25,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:25,349 INFO L93 Difference]: Finished difference Result 2146 states and 4095 transitions. [2022-11-26 00:55:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:55:25,350 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:25,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:25,355 INFO L225 Difference]: With dead ends: 2146 [2022-11-26 00:55:25,355 INFO L226 Difference]: Without dead ends: 2146 [2022-11-26 00:55:25,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:55:25,356 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 385 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:25,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 156 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:55:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2022-11-26 00:55:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 917. [2022-11-26 00:55:25,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 905 states have (on average 1.9502762430939227) internal successors, (1765), 916 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:25,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1765 transitions. [2022-11-26 00:55:25,386 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1765 transitions. Word has length 18 [2022-11-26 00:55:25,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:25,387 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1765 transitions. [2022-11-26 00:55:25,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:25,387 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1765 transitions. [2022-11-26 00:55:25,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:25,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:25,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:25,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:55:25,389 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:25,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:25,389 INFO L85 PathProgramCache]: Analyzing trace with hash -169429805, now seen corresponding path program 7 times [2022-11-26 00:55:25,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:25,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909022390] [2022-11-26 00:55:25,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:25,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:26,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:26,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909022390] [2022-11-26 00:55:26,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909022390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:26,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:26,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136662589] [2022-11-26 00:55:26,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:26,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:26,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:26,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:26,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:26,181 INFO L87 Difference]: Start difference. First operand 917 states and 1765 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:28,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:28,654 INFO L93 Difference]: Finished difference Result 1951 states and 3756 transitions. [2022-11-26 00:55:28,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-26 00:55:28,655 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:28,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:28,661 INFO L225 Difference]: With dead ends: 1951 [2022-11-26 00:55:28,661 INFO L226 Difference]: Without dead ends: 1951 [2022-11-26 00:55:28,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-11-26 00:55:28,663 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 353 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:28,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 136 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:55:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2022-11-26 00:55:28,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 832. [2022-11-26 00:55:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 822 states have (on average 1.9464720194647203) internal successors, (1600), 831 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1600 transitions. [2022-11-26 00:55:28,694 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1600 transitions. Word has length 18 [2022-11-26 00:55:28,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:28,694 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1600 transitions. [2022-11-26 00:55:28,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:28,695 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1600 transitions. [2022-11-26 00:55:28,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:28,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:28,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:28,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:55:28,696 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:28,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:28,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1148029458, now seen corresponding path program 4 times [2022-11-26 00:55:28,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:28,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897450446] [2022-11-26 00:55:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:28,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:29,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:29,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897450446] [2022-11-26 00:55:29,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897450446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:29,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:29,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:29,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061239805] [2022-11-26 00:55:29,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:29,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:29,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:29,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:29,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:29,428 INFO L87 Difference]: Start difference. First operand 832 states and 1600 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:31,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:31,430 INFO L93 Difference]: Finished difference Result 1804 states and 3459 transitions. [2022-11-26 00:55:31,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:55:31,431 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:31,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:31,436 INFO L225 Difference]: With dead ends: 1804 [2022-11-26 00:55:31,437 INFO L226 Difference]: Without dead ends: 1804 [2022-11-26 00:55:31,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:55:31,438 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 206 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:31,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 142 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:55:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2022-11-26 00:55:31,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 807. [2022-11-26 00:55:31,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 797 states have (on average 1.944792973651192) internal successors, (1550), 806 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1550 transitions. [2022-11-26 00:55:31,466 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1550 transitions. Word has length 18 [2022-11-26 00:55:31,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:31,467 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1550 transitions. [2022-11-26 00:55:31,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1550 transitions. [2022-11-26 00:55:31,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:31,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:31,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:31,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:55:31,468 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:31,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:31,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1098153242, now seen corresponding path program 5 times [2022-11-26 00:55:31,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:31,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961405478] [2022-11-26 00:55:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:31,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:32,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:32,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:32,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961405478] [2022-11-26 00:55:32,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961405478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:32,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:32,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:32,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866048290] [2022-11-26 00:55:32,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:32,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:32,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:32,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:32,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:32,224 INFO L87 Difference]: Start difference. First operand 807 states and 1550 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:34,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:34,343 INFO L93 Difference]: Finished difference Result 1754 states and 3359 transitions. [2022-11-26 00:55:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:55:34,347 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:34,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:34,351 INFO L225 Difference]: With dead ends: 1754 [2022-11-26 00:55:34,351 INFO L226 Difference]: Without dead ends: 1754 [2022-11-26 00:55:34,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:34,352 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 217 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:34,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 150 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:55:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-11-26 00:55:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 807. [2022-11-26 00:55:34,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 797 states have (on average 1.944792973651192) internal successors, (1550), 806 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:34,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1550 transitions. [2022-11-26 00:55:34,374 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1550 transitions. Word has length 18 [2022-11-26 00:55:34,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:34,374 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1550 transitions. [2022-11-26 00:55:34,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:34,375 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1550 transitions. [2022-11-26 00:55:34,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:55:34,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:34,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:34,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 00:55:34,385 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -261206566, now seen corresponding path program 6 times [2022-11-26 00:55:34,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:34,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181566570] [2022-11-26 00:55:34,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:34,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:35,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:35,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181566570] [2022-11-26 00:55:35,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181566570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:35,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:35,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:35,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620568246] [2022-11-26 00:55:35,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:35,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:35,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:35,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:35,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:35,752 INFO L87 Difference]: Start difference. First operand 807 states and 1550 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:39,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:39,001 INFO L93 Difference]: Finished difference Result 1731 states and 3313 transitions. [2022-11-26 00:55:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:55:39,003 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:55:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:39,015 INFO L225 Difference]: With dead ends: 1731 [2022-11-26 00:55:39,015 INFO L226 Difference]: Without dead ends: 1731 [2022-11-26 00:55:39,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:55:39,016 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 192 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:39,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 163 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-26 00:55:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-11-26 00:55:39,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 714. [2022-11-26 00:55:39,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 705 states have (on average 1.9347517730496453) internal successors, (1364), 713 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:39,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1364 transitions. [2022-11-26 00:55:39,042 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1364 transitions. Word has length 18 [2022-11-26 00:55:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:39,042 INFO L495 AbstractCegarLoop]: Abstraction has 714 states and 1364 transitions. [2022-11-26 00:55:39,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1364 transitions. [2022-11-26 00:55:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:55:39,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:39,044 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] [2022-11-26 00:55:39,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-26 00:55:39,044 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:39,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:39,045 INFO L85 PathProgramCache]: Analyzing trace with hash 322260327, now seen corresponding path program 1 times [2022-11-26 00:55:39,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:39,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796289716] [2022-11-26 00:55:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:39,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:40,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:40,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796289716] [2022-11-26 00:55:40,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796289716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:40,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:40,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:40,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719792965] [2022-11-26 00:55:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:40,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:40,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:40,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:40,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:40,058 INFO L87 Difference]: Start difference. First operand 714 states and 1364 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:42,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:42,066 INFO L93 Difference]: Finished difference Result 1401 states and 2656 transitions. [2022-11-26 00:55:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:55:42,066 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:55:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:42,069 INFO L225 Difference]: With dead ends: 1401 [2022-11-26 00:55:42,070 INFO L226 Difference]: Without dead ends: 1401 [2022-11-26 00:55:42,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=247, Invalid=565, Unknown=0, NotChecked=0, Total=812 [2022-11-26 00:55:42,071 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 253 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:42,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 101 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:55:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-11-26 00:55:42,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 814. [2022-11-26 00:55:42,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 805 states have (on average 1.9428571428571428) internal successors, (1564), 813 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:42,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1564 transitions. [2022-11-26 00:55:42,095 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1564 transitions. Word has length 24 [2022-11-26 00:55:42,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:42,095 INFO L495 AbstractCegarLoop]: Abstraction has 814 states and 1564 transitions. [2022-11-26 00:55:42,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:42,096 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1564 transitions. [2022-11-26 00:55:42,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:55:42,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:42,097 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] [2022-11-26 00:55:42,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-26 00:55:42,098 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:42,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:42,098 INFO L85 PathProgramCache]: Analyzing trace with hash -618273817, now seen corresponding path program 2 times [2022-11-26 00:55:42,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:42,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154842568] [2022-11-26 00:55:42,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:42,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:43,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:43,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154842568] [2022-11-26 00:55:43,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154842568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:43,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:43,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:43,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570531160] [2022-11-26 00:55:43,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:43,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:43,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:43,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:43,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:43,010 INFO L87 Difference]: Start difference. First operand 814 states and 1564 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:44,453 INFO L93 Difference]: Finished difference Result 1091 states and 2091 transitions. [2022-11-26 00:55:44,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:55:44,454 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:55:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:44,455 INFO L225 Difference]: With dead ends: 1091 [2022-11-26 00:55:44,455 INFO L226 Difference]: Without dead ends: 1091 [2022-11-26 00:55:44,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:55:44,456 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 126 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:44,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 80 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:55:44,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-11-26 00:55:44,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 834. [2022-11-26 00:55:44,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-26 00:55:44,481 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-26 00:55:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:44,481 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-26 00:55:44,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-26 00:55:44,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:55:44,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:44,483 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] [2022-11-26 00:55:44,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-26 00:55:44,483 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:44,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:44,484 INFO L85 PathProgramCache]: Analyzing trace with hash -553838767, now seen corresponding path program 3 times [2022-11-26 00:55:44,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:44,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735226867] [2022-11-26 00:55:44,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:44,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:45,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:45,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735226867] [2022-11-26 00:55:45,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735226867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:45,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:45,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110869784] [2022-11-26 00:55:45,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:45,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:45,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:45,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:45,811 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:48,011 INFO L93 Difference]: Finished difference Result 1109 states and 2125 transitions. [2022-11-26 00:55:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:55:48,012 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:55:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:48,013 INFO L225 Difference]: With dead ends: 1109 [2022-11-26 00:55:48,013 INFO L226 Difference]: Without dead ends: 1109 [2022-11-26 00:55:48,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:55:48,014 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 126 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:48,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 84 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:55:48,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-11-26 00:55:48,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 834. [2022-11-26 00:55:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-26 00:55:48,032 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-26 00:55:48,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:48,032 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-26 00:55:48,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-26 00:55:48,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:55:48,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:48,034 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] [2022-11-26 00:55:48,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-26 00:55:48,034 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:48,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:48,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1472247143, now seen corresponding path program 4 times [2022-11-26 00:55:48,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:48,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693039697] [2022-11-26 00:55:48,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:48,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:48,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:48,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693039697] [2022-11-26 00:55:48,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693039697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:48,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:48,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:48,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103486191] [2022-11-26 00:55:48,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:48,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:48,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:48,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:48,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:48,811 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:50,592 INFO L93 Difference]: Finished difference Result 1125 states and 2155 transitions. [2022-11-26 00:55:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:55:50,593 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:55:50,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:50,594 INFO L225 Difference]: With dead ends: 1125 [2022-11-26 00:55:50,594 INFO L226 Difference]: Without dead ends: 1125 [2022-11-26 00:55:50,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:55:50,596 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 128 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:50,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 83 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:55:50,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-11-26 00:55:50,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 834. [2022-11-26 00:55:50,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-26 00:55:50,611 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-26 00:55:50,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:50,611 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-26 00:55:50,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-26 00:55:50,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:55:50,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:50,612 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] [2022-11-26 00:55:50,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-26 00:55:50,613 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:50,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:50,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1463922099, now seen corresponding path program 5 times [2022-11-26 00:55:50,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:50,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39145645] [2022-11-26 00:55:50,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:50,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:51,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:51,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:51,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39145645] [2022-11-26 00:55:51,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39145645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:51,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:51,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:51,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052573671] [2022-11-26 00:55:51,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:51,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:51,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:51,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:51,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:51,278 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:52,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:52,952 INFO L93 Difference]: Finished difference Result 1139 states and 2181 transitions. [2022-11-26 00:55:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:55:52,952 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:55:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:52,954 INFO L225 Difference]: With dead ends: 1139 [2022-11-26 00:55:52,954 INFO L226 Difference]: Without dead ends: 1139 [2022-11-26 00:55:52,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:55:52,955 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 135 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:52,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 82 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:55:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-11-26 00:55:52,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 834. [2022-11-26 00:55:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-26 00:55:52,969 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-26 00:55:52,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:52,969 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-26 00:55:52,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:52,970 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-26 00:55:52,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:55:52,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:52,971 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] [2022-11-26 00:55:52,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-26 00:55:52,971 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:52,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash -617425363, now seen corresponding path program 6 times [2022-11-26 00:55:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:52,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746444243] [2022-11-26 00:55:52,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:52,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:54,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:54,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746444243] [2022-11-26 00:55:54,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746444243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:54,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:54,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:54,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411438922] [2022-11-26 00:55:54,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:54,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:54,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:54,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:54,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:54,103 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:55,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:55,284 INFO L93 Difference]: Finished difference Result 895 states and 1702 transitions. [2022-11-26 00:55:55,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:55:55,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:55:55,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:55,286 INFO L225 Difference]: With dead ends: 895 [2022-11-26 00:55:55,286 INFO L226 Difference]: Without dead ends: 895 [2022-11-26 00:55:55,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:55:55,287 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 111 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:55,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 47 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:55:55,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-11-26 00:55:55,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 834. [2022-11-26 00:55:55,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-26 00:55:55,304 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-26 00:55:55,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:55,304 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-26 00:55:55,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:55,305 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-26 00:55:55,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:55:55,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:55,306 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] [2022-11-26 00:55:55,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-26 00:55:55,307 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:55,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:55,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1669504535, now seen corresponding path program 7 times [2022-11-26 00:55:55,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:55,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673362676] [2022-11-26 00:55:55,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:55,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:56,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:56,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673362676] [2022-11-26 00:55:56,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673362676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:56,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:56,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:56,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812554267] [2022-11-26 00:55:56,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:56,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:56,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:56,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:56,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:56,383 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:57,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:57,591 INFO L93 Difference]: Finished difference Result 916 states and 1743 transitions. [2022-11-26 00:55:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:55:57,591 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:55:57,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:57,593 INFO L225 Difference]: With dead ends: 916 [2022-11-26 00:55:57,593 INFO L226 Difference]: Without dead ends: 916 [2022-11-26 00:55:57,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:55:57,595 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 106 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:57,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 47 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:55:57,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-11-26 00:55:57,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 839. [2022-11-26 00:55:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 830 states have (on average 1.9445783132530121) internal successors, (1614), 838 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1614 transitions. [2022-11-26 00:55:57,614 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1614 transitions. Word has length 24 [2022-11-26 00:55:57,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:57,615 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1614 transitions. [2022-11-26 00:55:57,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:57,615 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1614 transitions. [2022-11-26 00:55:57,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:55:57,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:57,617 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] [2022-11-26 00:55:57,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-26 00:55:57,617 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:55:57,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:57,618 INFO L85 PathProgramCache]: Analyzing trace with hash -618122013, now seen corresponding path program 8 times [2022-11-26 00:55:57,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:57,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498185000] [2022-11-26 00:55:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:58,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:58,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498185000] [2022-11-26 00:55:58,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498185000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:58,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:58,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:55:58,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233290717] [2022-11-26 00:55:58,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:58,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:55:58,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:55:58,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:55:58,988 INFO L87 Difference]: Start difference. First operand 839 states and 1614 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:00,965 INFO L93 Difference]: Finished difference Result 918 states and 1746 transitions. [2022-11-26 00:56:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:56:00,966 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:00,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:00,967 INFO L225 Difference]: With dead ends: 918 [2022-11-26 00:56:00,967 INFO L226 Difference]: Without dead ends: 918 [2022-11-26 00:56:00,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=193, Invalid=407, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:56:00,968 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 109 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:00,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 48 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:56:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2022-11-26 00:56:00,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 834. [2022-11-26 00:56:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-26 00:56:00,985 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-26 00:56:00,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:00,986 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-26 00:56:00,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:00,986 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-26 00:56:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:00,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:00,988 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] [2022-11-26 00:56:00,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-26 00:56:00,988 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:00,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:00,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1524658353, now seen corresponding path program 9 times [2022-11-26 00:56:00,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:00,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230285134] [2022-11-26 00:56:00,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:00,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:01,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:01,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:01,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230285134] [2022-11-26 00:56:01,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230285134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:01,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:01,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:01,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185466747] [2022-11-26 00:56:01,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:01,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:01,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:01,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:01,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:01,924 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:03,633 INFO L93 Difference]: Finished difference Result 921 states and 1754 transitions. [2022-11-26 00:56:03,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:56:03,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:03,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:03,635 INFO L225 Difference]: With dead ends: 921 [2022-11-26 00:56:03,635 INFO L226 Difference]: Without dead ends: 921 [2022-11-26 00:56:03,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:56:03,636 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 94 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:03,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 50 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:56:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-26 00:56:03,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 844. [2022-11-26 00:56:03,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 835 states have (on average 1.9449101796407187) internal successors, (1624), 843 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1624 transitions. [2022-11-26 00:56:03,652 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1624 transitions. Word has length 24 [2022-11-26 00:56:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:03,652 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1624 transitions. [2022-11-26 00:56:03,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1624 transitions. [2022-11-26 00:56:03,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:03,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:03,654 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] [2022-11-26 00:56:03,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-26 00:56:03,655 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:03,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash -473275831, now seen corresponding path program 10 times [2022-11-26 00:56:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:03,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411169202] [2022-11-26 00:56:03,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:03,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:04,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:04,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411169202] [2022-11-26 00:56:04,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411169202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:04,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:04,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:04,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094228037] [2022-11-26 00:56:04,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:04,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:04,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:04,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:04,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:04,452 INFO L87 Difference]: Start difference. First operand 844 states and 1624 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:06,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:06,039 INFO L93 Difference]: Finished difference Result 939 states and 1788 transitions. [2022-11-26 00:56:06,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:56:06,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:06,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:06,041 INFO L225 Difference]: With dead ends: 939 [2022-11-26 00:56:06,041 INFO L226 Difference]: Without dead ends: 939 [2022-11-26 00:56:06,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:56:06,042 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 97 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:06,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 49 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:56:06,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-11-26 00:56:06,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 839. [2022-11-26 00:56:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 830 states have (on average 1.9445783132530121) internal successors, (1614), 838 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1614 transitions. [2022-11-26 00:56:06,059 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1614 transitions. Word has length 24 [2022-11-26 00:56:06,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:06,059 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1614 transitions. [2022-11-26 00:56:06,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:06,059 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1614 transitions. [2022-11-26 00:56:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:06,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:06,061 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] [2022-11-26 00:56:06,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-26 00:56:06,061 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:06,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:06,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1858267983, now seen corresponding path program 11 times [2022-11-26 00:56:06,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:06,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207067439] [2022-11-26 00:56:06,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:06,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:07,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:07,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207067439] [2022-11-26 00:56:07,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207067439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:07,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:07,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:07,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343460297] [2022-11-26 00:56:07,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:07,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:07,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:07,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:07,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:07,107 INFO L87 Difference]: Start difference. First operand 839 states and 1614 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:08,827 INFO L93 Difference]: Finished difference Result 941 states and 1790 transitions. [2022-11-26 00:56:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:56:08,827 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:08,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:08,829 INFO L225 Difference]: With dead ends: 941 [2022-11-26 00:56:08,829 INFO L226 Difference]: Without dead ends: 941 [2022-11-26 00:56:08,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:56:08,830 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 99 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:08,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 50 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:56:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-11-26 00:56:08,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 834. [2022-11-26 00:56:08,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-26 00:56:08,846 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-26 00:56:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:08,846 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-26 00:56:08,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-26 00:56:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:08,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:08,848 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] [2022-11-26 00:56:08,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-26 00:56:08,848 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:08,849 INFO L85 PathProgramCache]: Analyzing trace with hash 596640071, now seen corresponding path program 12 times [2022-11-26 00:56:08,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:08,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226802621] [2022-11-26 00:56:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:08,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:09,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:09,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226802621] [2022-11-26 00:56:09,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226802621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:09,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:09,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:09,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863495324] [2022-11-26 00:56:09,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:09,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:09,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:09,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:09,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:09,860 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:11,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:11,269 INFO L93 Difference]: Finished difference Result 933 states and 1778 transitions. [2022-11-26 00:56:11,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:56:11,270 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:11,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:11,271 INFO L225 Difference]: With dead ends: 933 [2022-11-26 00:56:11,272 INFO L226 Difference]: Without dead ends: 933 [2022-11-26 00:56:11,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:56:11,273 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 97 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:11,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 48 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:56:11,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-11-26 00:56:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 849. [2022-11-26 00:56:11,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 840 states have (on average 1.9452380952380952) internal successors, (1634), 848 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1634 transitions. [2022-11-26 00:56:11,290 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1634 transitions. Word has length 24 [2022-11-26 00:56:11,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:11,290 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1634 transitions. [2022-11-26 00:56:11,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:11,291 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1634 transitions. [2022-11-26 00:56:11,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:11,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:11,292 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] [2022-11-26 00:56:11,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-26 00:56:11,293 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:11,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:11,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1648022593, now seen corresponding path program 13 times [2022-11-26 00:56:11,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:11,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328854088] [2022-11-26 00:56:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:11,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:12,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:12,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:12,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328854088] [2022-11-26 00:56:12,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328854088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:12,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:12,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:12,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192493699] [2022-11-26 00:56:12,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:12,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:12,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:12,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:12,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:12,251 INFO L87 Difference]: Start difference. First operand 849 states and 1634 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:13,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:13,805 INFO L93 Difference]: Finished difference Result 951 states and 1812 transitions. [2022-11-26 00:56:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:56:13,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:13,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:13,807 INFO L225 Difference]: With dead ends: 951 [2022-11-26 00:56:13,807 INFO L226 Difference]: Without dead ends: 951 [2022-11-26 00:56:13,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:56:13,808 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 102 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:13,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 49 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:56:13,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-11-26 00:56:13,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 844. [2022-11-26 00:56:13,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 835 states have (on average 1.9449101796407187) internal successors, (1624), 843 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:13,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1624 transitions. [2022-11-26 00:56:13,821 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1624 transitions. Word has length 24 [2022-11-26 00:56:13,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:13,822 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1624 transitions. [2022-11-26 00:56:13,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:13,822 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1624 transitions. [2022-11-26 00:56:13,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:13,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:13,823 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] [2022-11-26 00:56:13,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-26 00:56:13,823 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:13,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash -315400889, now seen corresponding path program 14 times [2022-11-26 00:56:13,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:13,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510225301] [2022-11-26 00:56:13,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:13,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:14,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:14,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510225301] [2022-11-26 00:56:14,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510225301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:14,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:14,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:14,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118247736] [2022-11-26 00:56:14,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:14,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:14,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:14,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:14,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:14,711 INFO L87 Difference]: Start difference. First operand 844 states and 1624 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:16,554 INFO L93 Difference]: Finished difference Result 968 states and 1844 transitions. [2022-11-26 00:56:16,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:56:16,559 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:16,561 INFO L225 Difference]: With dead ends: 968 [2022-11-26 00:56:16,561 INFO L226 Difference]: Without dead ends: 968 [2022-11-26 00:56:16,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:56:16,563 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 93 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:16,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 51 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:56:16,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-11-26 00:56:16,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 839. [2022-11-26 00:56:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 830 states have (on average 1.9445783132530121) internal successors, (1614), 838 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1614 transitions. [2022-11-26 00:56:16,575 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1614 transitions. Word has length 24 [2022-11-26 00:56:16,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:16,576 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1614 transitions. [2022-11-26 00:56:16,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1614 transitions. [2022-11-26 00:56:16,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:16,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:16,577 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] [2022-11-26 00:56:16,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-26 00:56:16,577 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:16,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:16,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2128920541, now seen corresponding path program 15 times [2022-11-26 00:56:16,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:16,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009976941] [2022-11-26 00:56:16,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:16,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:17,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:17,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009976941] [2022-11-26 00:56:17,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009976941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:17,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:17,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:17,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130208319] [2022-11-26 00:56:17,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:17,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:17,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:17,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:17,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:17,708 INFO L87 Difference]: Start difference. First operand 839 states and 1614 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:19,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:19,355 INFO L93 Difference]: Finished difference Result 964 states and 1834 transitions. [2022-11-26 00:56:19,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:56:19,355 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:19,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:19,357 INFO L225 Difference]: With dead ends: 964 [2022-11-26 00:56:19,357 INFO L226 Difference]: Without dead ends: 964 [2022-11-26 00:56:19,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=206, Invalid=444, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:56:19,358 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 102 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:19,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 49 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:56:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-11-26 00:56:19,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 834. [2022-11-26 00:56:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 825 states have (on average 1.9442424242424243) internal successors, (1604), 833 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:19,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1604 transitions. [2022-11-26 00:56:19,376 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1604 transitions. Word has length 24 [2022-11-26 00:56:19,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:19,376 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1604 transitions. [2022-11-26 00:56:19,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1604 transitions. [2022-11-26 00:56:19,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:19,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:19,378 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] [2022-11-26 00:56:19,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-26 00:56:19,379 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:19,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1265255015, now seen corresponding path program 16 times [2022-11-26 00:56:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:19,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021609365] [2022-11-26 00:56:19,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:19,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:20,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:20,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021609365] [2022-11-26 00:56:20,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021609365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:20,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:20,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:20,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660378222] [2022-11-26 00:56:20,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:20,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:20,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:20,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:20,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:20,742 INFO L87 Difference]: Start difference. First operand 834 states and 1604 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:22,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:22,658 INFO L93 Difference]: Finished difference Result 1703 states and 3275 transitions. [2022-11-26 00:56:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:56:22,658 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:22,662 INFO L225 Difference]: With dead ends: 1703 [2022-11-26 00:56:22,662 INFO L226 Difference]: Without dead ends: 1703 [2022-11-26 00:56:22,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:56:22,663 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 183 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:22,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 269 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:56:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-11-26 00:56:22,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 858. [2022-11-26 00:56:22,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 849 states have (on average 1.9458186101295643) internal successors, (1652), 857 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:22,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1652 transitions. [2022-11-26 00:56:22,697 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1652 transitions. Word has length 24 [2022-11-26 00:56:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:22,697 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1652 transitions. [2022-11-26 00:56:22,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:22,697 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1652 transitions. [2022-11-26 00:56:22,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:22,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:22,699 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] [2022-11-26 00:56:22,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-26 00:56:22,699 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:22,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:22,700 INFO L85 PathProgramCache]: Analyzing trace with hash 324720871, now seen corresponding path program 17 times [2022-11-26 00:56:22,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:22,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764244470] [2022-11-26 00:56:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:22,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:23,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:23,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764244470] [2022-11-26 00:56:23,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764244470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:23,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:23,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:23,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009589061] [2022-11-26 00:56:23,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:23,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:23,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:23,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:23,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:23,341 INFO L87 Difference]: Start difference. First operand 858 states and 1652 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:24,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:24,608 INFO L93 Difference]: Finished difference Result 1353 states and 2627 transitions. [2022-11-26 00:56:24,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:24,609 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:24,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:24,611 INFO L225 Difference]: With dead ends: 1353 [2022-11-26 00:56:24,611 INFO L226 Difference]: Without dead ends: 1353 [2022-11-26 00:56:24,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:56:24,612 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 94 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:24,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 180 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:56:24,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-11-26 00:56:24,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 861. [2022-11-26 00:56:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 852 states have (on average 1.9460093896713615) internal successors, (1658), 860 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1658 transitions. [2022-11-26 00:56:24,627 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1658 transitions. Word has length 24 [2022-11-26 00:56:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:24,628 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1658 transitions. [2022-11-26 00:56:24,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1658 transitions. [2022-11-26 00:56:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:24,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:24,629 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] [2022-11-26 00:56:24,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-26 00:56:24,630 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:24,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash 389155921, now seen corresponding path program 18 times [2022-11-26 00:56:24,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:24,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984954097] [2022-11-26 00:56:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:24,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:25,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:25,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984954097] [2022-11-26 00:56:25,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984954097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:25,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:25,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:25,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684438010] [2022-11-26 00:56:25,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:25,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:25,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:25,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:25,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:25,248 INFO L87 Difference]: Start difference. First operand 861 states and 1658 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:27,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:27,036 INFO L93 Difference]: Finished difference Result 1371 states and 2661 transitions. [2022-11-26 00:56:27,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:56:27,037 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:27,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:27,039 INFO L225 Difference]: With dead ends: 1371 [2022-11-26 00:56:27,039 INFO L226 Difference]: Without dead ends: 1371 [2022-11-26 00:56:27,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:56:27,040 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 101 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:27,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 183 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:56:27,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-11-26 00:56:27,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 860. [2022-11-26 00:56:27,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 851 states have (on average 1.945945945945946) internal successors, (1656), 859 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:27,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1656 transitions. [2022-11-26 00:56:27,059 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1656 transitions. Word has length 24 [2022-11-26 00:56:27,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:27,059 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 1656 transitions. [2022-11-26 00:56:27,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1656 transitions. [2022-11-26 00:56:27,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:27,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:27,061 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] [2022-11-26 00:56:27,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-26 00:56:27,062 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:27,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:27,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1879725465, now seen corresponding path program 19 times [2022-11-26 00:56:27,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:27,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685965556] [2022-11-26 00:56:27,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:27,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:27,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:27,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685965556] [2022-11-26 00:56:27,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685965556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:27,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:27,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:27,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737721941] [2022-11-26 00:56:27,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:27,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:27,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:27,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:27,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:27,789 INFO L87 Difference]: Start difference. First operand 860 states and 1656 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:29,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:29,084 INFO L93 Difference]: Finished difference Result 1387 states and 2691 transitions. [2022-11-26 00:56:29,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:56:29,085 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:29,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:29,087 INFO L225 Difference]: With dead ends: 1387 [2022-11-26 00:56:29,087 INFO L226 Difference]: Without dead ends: 1387 [2022-11-26 00:56:29,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:56:29,092 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 99 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:29,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 181 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:56:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2022-11-26 00:56:29,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 859. [2022-11-26 00:56:29,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 850 states have (on average 1.9458823529411764) internal successors, (1654), 858 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1654 transitions. [2022-11-26 00:56:29,114 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1654 transitions. Word has length 24 [2022-11-26 00:56:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:29,116 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1654 transitions. [2022-11-26 00:56:29,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:29,117 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1654 transitions. [2022-11-26 00:56:29,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:29,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:29,119 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] [2022-11-26 00:56:29,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-26 00:56:29,120 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:29,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:29,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1888050509, now seen corresponding path program 20 times [2022-11-26 00:56:29,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:29,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653907943] [2022-11-26 00:56:29,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:29,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:30,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:30,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653907943] [2022-11-26 00:56:30,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653907943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:30,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:30,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:30,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235416246] [2022-11-26 00:56:30,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:30,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:30,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:30,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:30,049 INFO L87 Difference]: Start difference. First operand 859 states and 1654 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:31,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:31,501 INFO L93 Difference]: Finished difference Result 1405 states and 2725 transitions. [2022-11-26 00:56:31,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:56:31,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:31,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:31,503 INFO L225 Difference]: With dead ends: 1405 [2022-11-26 00:56:31,503 INFO L226 Difference]: Without dead ends: 1405 [2022-11-26 00:56:31,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:56:31,504 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 102 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:31,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 183 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:56:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2022-11-26 00:56:31,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 858. [2022-11-26 00:56:31,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 849 states have (on average 1.9458186101295643) internal successors, (1652), 857 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1652 transitions. [2022-11-26 00:56:31,514 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1652 transitions. Word has length 24 [2022-11-26 00:56:31,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:31,515 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1652 transitions. [2022-11-26 00:56:31,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:31,515 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1652 transitions. [2022-11-26 00:56:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:31,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:31,516 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] [2022-11-26 00:56:31,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-26 00:56:31,517 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:31,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:31,517 INFO L85 PathProgramCache]: Analyzing trace with hash 53423981, now seen corresponding path program 21 times [2022-11-26 00:56:31,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:31,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059344195] [2022-11-26 00:56:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:31,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:32,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:32,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:32,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059344195] [2022-11-26 00:56:32,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059344195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:32,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:32,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:32,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041082482] [2022-11-26 00:56:32,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:32,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:32,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:32,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:32,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:32,177 INFO L87 Difference]: Start difference. First operand 858 states and 1652 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:33,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:33,754 INFO L93 Difference]: Finished difference Result 1534 states and 2988 transitions. [2022-11-26 00:56:33,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:56:33,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:33,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:33,757 INFO L225 Difference]: With dead ends: 1534 [2022-11-26 00:56:33,757 INFO L226 Difference]: Without dead ends: 1534 [2022-11-26 00:56:33,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:56:33,758 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 128 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:33,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 139 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:56:33,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2022-11-26 00:56:33,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 853. [2022-11-26 00:56:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 844 states have (on average 1.9454976303317535) internal successors, (1642), 852 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1642 transitions. [2022-11-26 00:56:33,793 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1642 transitions. Word has length 24 [2022-11-26 00:56:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:33,793 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1642 transitions. [2022-11-26 00:56:33,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1642 transitions. [2022-11-26 00:56:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:33,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:33,796 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] [2022-11-26 00:56:33,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-26 00:56:33,796 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:33,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:33,797 INFO L85 PathProgramCache]: Analyzing trace with hash 672566277, now seen corresponding path program 22 times [2022-11-26 00:56:33,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:33,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139004891] [2022-11-26 00:56:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:33,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:35,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:35,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139004891] [2022-11-26 00:56:35,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139004891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:35,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:35,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:35,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50554731] [2022-11-26 00:56:35,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:35,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:35,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:35,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:35,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:35,025 INFO L87 Difference]: Start difference. First operand 853 states and 1642 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:36,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:36,833 INFO L93 Difference]: Finished difference Result 1551 states and 3020 transitions. [2022-11-26 00:56:36,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:56:36,833 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:36,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:36,836 INFO L225 Difference]: With dead ends: 1551 [2022-11-26 00:56:36,836 INFO L226 Difference]: Without dead ends: 1551 [2022-11-26 00:56:36,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:36,837 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 132 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:36,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 138 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:56:36,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-11-26 00:56:36,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 848. [2022-11-26 00:56:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 839 states have (on average 1.9451728247914184) internal successors, (1632), 847 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1632 transitions. [2022-11-26 00:56:36,857 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1632 transitions. Word has length 24 [2022-11-26 00:56:36,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:36,858 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1632 transitions. [2022-11-26 00:56:36,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:36,858 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1632 transitions. [2022-11-26 00:56:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:36,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:36,859 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] [2022-11-26 00:56:36,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-26 00:56:36,860 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:36,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:36,860 INFO L85 PathProgramCache]: Analyzing trace with hash -721385137, now seen corresponding path program 23 times [2022-11-26 00:56:36,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:36,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853952150] [2022-11-26 00:56:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:36,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:37,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:37,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853952150] [2022-11-26 00:56:37,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853952150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:37,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:37,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:56:37,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133818409] [2022-11-26 00:56:37,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:37,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:56:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:37,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:56:37,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:56:37,668 INFO L87 Difference]: Start difference. First operand 848 states and 1632 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:39,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:39,711 INFO L93 Difference]: Finished difference Result 1583 states and 3080 transitions. [2022-11-26 00:56:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:56:39,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:39,713 INFO L225 Difference]: With dead ends: 1583 [2022-11-26 00:56:39,714 INFO L226 Difference]: Without dead ends: 1583 [2022-11-26 00:56:39,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:39,714 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 130 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:39,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 147 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:56:39,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2022-11-26 00:56:39,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 843. [2022-11-26 00:56:39,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 834 states have (on average 1.9448441247002397) internal successors, (1622), 842 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:39,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1622 transitions. [2022-11-26 00:56:39,730 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1622 transitions. Word has length 24 [2022-11-26 00:56:39,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:39,730 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1622 transitions. [2022-11-26 00:56:39,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1622 transitions. [2022-11-26 00:56:39,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:39,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:39,731 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] [2022-11-26 00:56:39,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-26 00:56:39,731 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:39,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:39,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1478621829, now seen corresponding path program 24 times [2022-11-26 00:56:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:39,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921635410] [2022-11-26 00:56:39,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:39,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:40,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:40,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921635410] [2022-11-26 00:56:40,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921635410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:40,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:40,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:40,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964686890] [2022-11-26 00:56:40,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:40,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:40,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:40,570 INFO L87 Difference]: Start difference. First operand 843 states and 1622 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:41,779 INFO L93 Difference]: Finished difference Result 1589 states and 3089 transitions. [2022-11-26 00:56:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:56:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:41,782 INFO L225 Difference]: With dead ends: 1589 [2022-11-26 00:56:41,782 INFO L226 Difference]: Without dead ends: 1589 [2022-11-26 00:56:41,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:41,783 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 140 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:41,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 138 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:56:41,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-11-26 00:56:41,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 838. [2022-11-26 00:56:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 829 states have (on average 1.9445114595898674) internal successors, (1612), 837 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:41,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1612 transitions. [2022-11-26 00:56:41,795 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1612 transitions. Word has length 24 [2022-11-26 00:56:41,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:41,795 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1612 transitions. [2022-11-26 00:56:41,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:41,795 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1612 transitions. [2022-11-26 00:56:41,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:56:41,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:41,796 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] [2022-11-26 00:56:41,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-26 00:56:41,797 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:41,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1182023581, now seen corresponding path program 25 times [2022-11-26 00:56:41,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:41,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058805881] [2022-11-26 00:56:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:42,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:42,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058805881] [2022-11-26 00:56:42,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058805881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:42,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:42,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:42,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720506647] [2022-11-26 00:56:42,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:42,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:42,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:42,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:42,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:42,323 INFO L87 Difference]: Start difference. First operand 838 states and 1612 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:43,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:43,692 INFO L93 Difference]: Finished difference Result 1783 states and 3429 transitions. [2022-11-26 00:56:43,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:56:43,692 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:56:43,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:43,695 INFO L225 Difference]: With dead ends: 1783 [2022-11-26 00:56:43,695 INFO L226 Difference]: Without dead ends: 1783 [2022-11-26 00:56:43,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:56:43,695 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 315 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:43,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 139 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:56:43,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2022-11-26 00:56:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 809. [2022-11-26 00:56:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 800 states have (on average 1.9425) internal successors, (1554), 808 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:43,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1554 transitions. [2022-11-26 00:56:43,714 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1554 transitions. Word has length 24 [2022-11-26 00:56:43,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:43,714 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1554 transitions. [2022-11-26 00:56:43,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:43,714 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1554 transitions. [2022-11-26 00:56:43,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-26 00:56:43,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:43,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:43,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-26 00:56:43,728 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:43,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:43,729 INFO L85 PathProgramCache]: Analyzing trace with hash -637846315, now seen corresponding path program 1 times [2022-11-26 00:56:43,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:43,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069625576] [2022-11-26 00:56:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:43,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:44,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:44,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069625576] [2022-11-26 00:56:44,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069625576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:44,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:44,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:44,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160121156] [2022-11-26 00:56:44,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:44,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:44,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:44,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:44,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:44,933 INFO L87 Difference]: Start difference. First operand 809 states and 1554 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:46,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:46,242 INFO L93 Difference]: Finished difference Result 1641 states and 3152 transitions. [2022-11-26 00:56:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:56:46,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-26 00:56:46,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:46,244 INFO L225 Difference]: With dead ends: 1641 [2022-11-26 00:56:46,244 INFO L226 Difference]: Without dead ends: 1641 [2022-11-26 00:56:46,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:56:46,245 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 182 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:46,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 268 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:56:46,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2022-11-26 00:56:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 807. [2022-11-26 00:56:46,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 798 states have (on average 1.9423558897243107) internal successors, (1550), 806 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1550 transitions. [2022-11-26 00:56:46,256 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1550 transitions. Word has length 25 [2022-11-26 00:56:46,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:46,256 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1550 transitions. [2022-11-26 00:56:46,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:46,257 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1550 transitions. [2022-11-26 00:56:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-26 00:56:46,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:46,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:46,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-26 00:56:46,258 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:46,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:46,259 INFO L85 PathProgramCache]: Analyzing trace with hash 568198811, now seen corresponding path program 2 times [2022-11-26 00:56:46,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:46,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947415896] [2022-11-26 00:56:46,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:46,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:46,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947415896] [2022-11-26 00:56:46,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947415896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:46,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:46,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:56:46,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947771812] [2022-11-26 00:56:46,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:46,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:56:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:56:46,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:56:46,872 INFO L87 Difference]: Start difference. First operand 807 states and 1550 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:48,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:48,581 INFO L93 Difference]: Finished difference Result 1631 states and 3133 transitions. [2022-11-26 00:56:48,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:56:48,582 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-26 00:56:48,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:48,584 INFO L225 Difference]: With dead ends: 1631 [2022-11-26 00:56:48,584 INFO L226 Difference]: Without dead ends: 1631 [2022-11-26 00:56:48,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:56:48,585 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 176 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:48,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 276 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:56:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2022-11-26 00:56:48,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 679. [2022-11-26 00:56:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 671 states have (on average 1.9359165424739195) internal successors, (1299), 678 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:48,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1299 transitions. [2022-11-26 00:56:48,596 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1299 transitions. Word has length 25 [2022-11-26 00:56:48,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:48,596 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 1299 transitions. [2022-11-26 00:56:48,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1299 transitions. [2022-11-26 00:56:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:56:48,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:48,598 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] [2022-11-26 00:56:48,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-26 00:56:48,598 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:48,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1329960661, now seen corresponding path program 1 times [2022-11-26 00:56:48,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:48,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531070061] [2022-11-26 00:56:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:48,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:48,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:48,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531070061] [2022-11-26 00:56:48,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531070061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:48,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:48,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:56:48,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496337103] [2022-11-26 00:56:48,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:48,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:56:48,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:48,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:56:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:56:48,895 INFO L87 Difference]: Start difference. First operand 679 states and 1299 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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) [2022-11-26 00:56:49,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:49,280 INFO L93 Difference]: Finished difference Result 754 states and 1437 transitions. [2022-11-26 00:56:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:56:49,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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 [2022-11-26 00:56:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:49,282 INFO L225 Difference]: With dead ends: 754 [2022-11-26 00:56:49,282 INFO L226 Difference]: Without dead ends: 754 [2022-11-26 00:56:49,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:56:49,283 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 37 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:49,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 29 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:56:49,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-11-26 00:56:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 726. [2022-11-26 00:56:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 718 states have (on average 1.934540389972145) internal successors, (1389), 725 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1389 transitions. [2022-11-26 00:56:49,296 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1389 transitions. Word has length 27 [2022-11-26 00:56:49,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:49,296 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 1389 transitions. [2022-11-26 00:56:49,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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) [2022-11-26 00:56:49,297 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1389 transitions. [2022-11-26 00:56:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-26 00:56:49,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:49,298 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] [2022-11-26 00:56:49,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-26 00:56:49,299 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:49,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:49,299 INFO L85 PathProgramCache]: Analyzing trace with hash -850505127, now seen corresponding path program 1 times [2022-11-26 00:56:49,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:49,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502877212] [2022-11-26 00:56:49,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:49,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:49,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:49,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:49,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502877212] [2022-11-26 00:56:49,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502877212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:49,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:49,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:56:49,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868445826] [2022-11-26 00:56:49,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:49,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:56:49,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:49,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:56:49,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:49,460 INFO L87 Difference]: Start difference. First operand 726 states and 1389 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:49,681 INFO L93 Difference]: Finished difference Result 280 states and 492 transitions. [2022-11-26 00:56:49,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:56:49,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-26 00:56:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:49,682 INFO L225 Difference]: With dead ends: 280 [2022-11-26 00:56:49,682 INFO L226 Difference]: Without dead ends: 280 [2022-11-26 00:56:49,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:49,682 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 27 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:49,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 42 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:56:49,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-11-26 00:56:49,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2022-11-26 00:56:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 278 states have (on average 1.7697841726618706) internal successors, (492), 279 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 492 transitions. [2022-11-26 00:56:49,687 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 492 transitions. Word has length 30 [2022-11-26 00:56:49,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:49,688 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 492 transitions. [2022-11-26 00:56:49,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:49,688 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 492 transitions. [2022-11-26 00:56:49,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:49,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:49,689 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] [2022-11-26 00:56:49,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-26 00:56:49,689 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:56:49,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash 388180714, now seen corresponding path program 1 times [2022-11-26 00:56:49,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:49,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710939308] [2022-11-26 00:56:49,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:49,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:49,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:49,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710939308] [2022-11-26 00:56:49,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710939308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:49,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:49,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:56:49,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367207820] [2022-11-26 00:56:49,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:49,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:56:49,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:49,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:56:49,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:56:49,962 INFO L87 Difference]: Start difference. First operand 280 states and 492 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) [2022-11-26 00:56:50,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:50,214 INFO L93 Difference]: Finished difference Result 277 states and 488 transitions. [2022-11-26 00:56:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:56:50,215 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 [2022-11-26 00:56:50,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:50,215 INFO L225 Difference]: With dead ends: 277 [2022-11-26 00:56:50,215 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:56:50,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:56:50,216 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:50,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:56:50,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:56:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:56:50,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:50,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:56:50,217 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-11-26 00:56:50,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:50,217 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:56:50,218 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) [2022-11-26 00:56:50,218 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:56:50,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:56:50,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-11-26 00:56:50,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-11-26 00:56:50,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2022-11-26 00:56:50,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2022-11-26 00:56:50,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-11-26 00:56:50,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-11-26 00:56:50,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-11-26 00:56:50,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-11-26 00:56:50,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-11-26 00:56:50,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-11-26 00:56:50,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2022-11-26 00:56:50,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 26 remaining) [2022-11-26 00:56:50,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-11-26 00:56:50,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-11-26 00:56:50,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-11-26 00:56:50,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-11-26 00:56:50,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-11-26 00:56:50,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-11-26 00:56:50,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-11-26 00:56:50,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-11-26 00:56:50,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-11-26 00:56:50,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-11-26 00:56:50,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-11-26 00:56:50,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-11-26 00:56:50,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-11-26 00:56:50,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-11-26 00:56:50,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-26 00:56:50,228 INFO L445 BasicCegarLoop]: Path program histogram: [25, 7, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:50,234 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:56:50,234 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:56:50,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:56:50 BasicIcfg [2022-11-26 00:56:50,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:56:50,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:56:50,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:56:50,238 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:56:50,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:48:03" (3/4) ... [2022-11-26 00:56:50,241 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:56:50,248 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-26 00:56:50,254 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-26 00:56:50,254 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-26 00:56:50,254 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:56:50,294 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:56:50,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:56:50,295 INFO L158 Benchmark]: Toolchain (without parser) took 529361.62ms. Allocated memory was 192.9MB in the beginning and 488.6MB in the end (delta: 295.7MB). Free memory was 146.9MB in the beginning and 244.3MB in the end (delta: -97.4MB). Peak memory consumption was 199.9MB. Max. memory is 16.1GB. [2022-11-26 00:56:50,295 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:56:50,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1089.85ms. Allocated memory is still 192.9MB. Free memory was 146.9MB in the beginning and 108.6MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-26 00:56:50,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.46ms. Allocated memory is still 192.9MB. Free memory was 107.9MB in the beginning and 105.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:56:50,296 INFO L158 Benchmark]: Boogie Preprocessor took 53.61ms. Allocated memory is still 192.9MB. Free memory was 105.0MB in the beginning and 102.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:56:50,296 INFO L158 Benchmark]: RCFGBuilder took 1016.53ms. Allocated memory is still 192.9MB. Free memory was 101.6MB in the beginning and 159.1MB in the end (delta: -57.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2022-11-26 00:56:50,296 INFO L158 Benchmark]: TraceAbstraction took 527043.61ms. Allocated memory was 192.9MB in the beginning and 488.6MB in the end (delta: 295.7MB). Free memory was 158.1MB in the beginning and 247.4MB in the end (delta: -89.4MB). Peak memory consumption was 206.3MB. Max. memory is 16.1GB. [2022-11-26 00:56:50,296 INFO L158 Benchmark]: Witness Printer took 57.05ms. Allocated memory is still 488.6MB. Free memory was 247.4MB in the beginning and 244.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:56:50,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1089.85ms. Allocated memory is still 192.9MB. Free memory was 146.9MB in the beginning and 108.6MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.46ms. Allocated memory is still 192.9MB. Free memory was 107.9MB in the beginning and 105.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.61ms. Allocated memory is still 192.9MB. Free memory was 105.0MB in the beginning and 102.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1016.53ms. Allocated memory is still 192.9MB. Free memory was 101.6MB in the beginning and 159.1MB in the end (delta: -57.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * TraceAbstraction took 527043.61ms. Allocated memory was 192.9MB in the beginning and 488.6MB in the end (delta: 295.7MB). Free memory was 158.1MB in the beginning and 247.4MB in the end (delta: -89.4MB). Peak memory consumption was 206.3MB. Max. memory is 16.1GB. * Witness Printer took 57.05ms. Allocated memory is still 488.6MB. Free memory was 247.4MB in the beginning and 244.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 392.1s, 208 PlacesBefore, 72 PlacesAfterwards, 204 TransitionsBefore, 68 TransitionsAfterwards, 4288 CoEnabledTransitionPairs, 21 FixpointIterations, 128 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 208 TotalNumberOfCompositions, 59739 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12989, independent: 10744, independent conditional: 0, independent unconditional: 10744, dependent: 2245, dependent conditional: 0, dependent unconditional: 2245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3031, independent: 2886, independent conditional: 0, independent unconditional: 2886, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3031, independent: 2458, independent conditional: 0, independent unconditional: 2458, dependent: 573, dependent conditional: 0, dependent unconditional: 573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 573, independent: 428, independent conditional: 0, independent unconditional: 428, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1014, independent: 491, independent conditional: 0, independent unconditional: 491, dependent: 523, dependent conditional: 0, dependent unconditional: 523, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12989, independent: 7858, independent conditional: 0, independent unconditional: 7858, dependent: 2100, dependent conditional: 0, dependent unconditional: 2100, unknown: 3031, unknown conditional: 0, unknown unconditional: 3031] , Statistics on independence cache: Total cache size (in pairs): 428, Positive cache size: 339, Positive conditional cache size: 0, Positive unconditional cache size: 339, Negative cache size: 89, Negative conditional cache size: 0, Negative unconditional cache size: 89, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1228]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1248]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1249]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1228]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1250]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1250]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1253]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1253]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1254]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1228]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1238]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1238]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1239]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1239]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1240]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 274 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 526.8s, OverallIterations: 54, TraceHistogramMax: 1, PathProgramHistogramMax: 25, EmptinessCheckTime: 0.1s, AutomataDifference: 87.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 392.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8022 SdHoareTripleChecker+Valid, 72.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8022 mSDsluCounter, 5785 SdHoareTripleChecker+Invalid, 65.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3728 mSDsCounter, 2301 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48514 IncrementalHoareTripleChecker+Invalid, 50815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2301 mSolverCounterUnsat, 2057 mSDtfsCounter, 48514 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1078 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 996 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4189 ImplicationChecksByTransitivity, 19.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1056occurred in iteration=11, InterpolantAutomatonStates: 932, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 54 MinimizatonAttempts, 27136 StatesRemovedByMinimization, 49 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 42.7s InterpolantComputationTime, 1101 NumberOfCodeBlocks, 1101 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 1047 ConstructedInterpolants, 0 QuantifiedInterpolants, 18499 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 54 InterpolantComputations, 54 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:56:50,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aeb5a35-7afb-4a7b-92c1-2472c6108503/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE