./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8 --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:56:18,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:56:18,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:56:19,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:56:19,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:56:19,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:56:19,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:56:19,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:56:19,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:56:19,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:56:19,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:56:19,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:56:19,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:56:19,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:56:19,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:56:19,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:56:19,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:56:19,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:56:19,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:56:19,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:56:19,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:56:19,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:56:19,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:56:19,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:56:19,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:56:19,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:56:19,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:56:19,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:56:19,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:56:19,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:56:19,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:56:19,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:56:19,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:56:19,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:56:19,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:56:19,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:56:19,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:56:19,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:56:19,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:56:19,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:56:19,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:56:19,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-07 01:56:19,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:56:19,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:56:19,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:56:19,074 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:56:19,075 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:56:19,075 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:56:19,075 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:56:19,075 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:56:19,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:56:19,076 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:56:19,076 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:56:19,076 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:56:19,076 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:56:19,077 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:56:19,077 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:56:19,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:56:19,078 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:56:19,078 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:56:19,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:56:19,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:56:19,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:56:19,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:56:19,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:56:19,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:56:19,080 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-07 01:56:19,080 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:56:19,080 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:56:19,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:56:19,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:56:19,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:56:19,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:56:19,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:56:19,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:56:19,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:56:19,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:56:19,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:56:19,082 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:56:19,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:56:19,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:56:19,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:56:19,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:56:19,083 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2021-11-07 01:56:19,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:56:19,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:56:19,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:56:19,355 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:56:19,357 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:56:19,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2021-11-07 01:56:19,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/data/7e4813519/6808ec81ac0441049d9bf5f31cd7bb6e/FLAG37301b42a [2021-11-07 01:56:19,955 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:56:19,955 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2021-11-07 01:56:19,989 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/data/7e4813519/6808ec81ac0441049d9bf5f31cd7bb6e/FLAG37301b42a [2021-11-07 01:56:20,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/data/7e4813519/6808ec81ac0441049d9bf5f31cd7bb6e [2021-11-07 01:56:20,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:56:20,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:56:20,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:56:20,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:56:20,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:56:20,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:20" (1/1) ... [2021-11-07 01:56:20,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a54de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:20, skipping insertion in model container [2021-11-07 01:56:20,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:20" (1/1) ... [2021-11-07 01:56:20,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:56:20,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:56:20,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:56:20,887 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:56:20,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:56:21,035 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:56:21,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21 WrapperNode [2021-11-07 01:56:21,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:56:21,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:56:21,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:56:21,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:56:21,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:56:21,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:56:21,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:56:21,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:56:21,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:56:21,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:56:21,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:56:21,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:56:21,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (1/1) ... [2021-11-07 01:56:21,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:56:21,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:56:21,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:56:21,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:56:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:56:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:56:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:56:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:56:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 01:56:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 01:56:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 01:56:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:56:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:56:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:56:21,286 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:56:21,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:56:21,721 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-07 01:56:21,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:21 BoogieIcfgContainer [2021-11-07 01:56:21,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:56:21,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:56:21,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:56:21,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:56:21,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:56:20" (1/3) ... [2021-11-07 01:56:21,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45eb155c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:21, skipping insertion in model container [2021-11-07 01:56:21,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:21" (2/3) ... [2021-11-07 01:56:21,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45eb155c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:21, skipping insertion in model container [2021-11-07 01:56:21,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:21" (3/3) ... [2021-11-07 01:56:21,732 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2021-11-07 01:56:21,737 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:56:21,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:56:21,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 01:56:21,738 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:56:21,770 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,770 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,770 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,770 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,771 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,771 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,771 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,771 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,771 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,773 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,773 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,773 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,774 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,774 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,774 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,774 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,774 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,774 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,775 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,775 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,775 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,775 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,775 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,775 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,776 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,776 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,776 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,776 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,776 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,776 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,777 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,777 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,777 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,778 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,778 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,778 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,778 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,778 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,779 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,779 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,779 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,780 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,780 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,780 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,780 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,780 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,781 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,781 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,781 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,781 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,781 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,782 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,782 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,782 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,782 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,782 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,782 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,783 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,783 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,783 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,783 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,800 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,800 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,800 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,800 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,801 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,801 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,801 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,801 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,804 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,804 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,804 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,805 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,805 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,806 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,808 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,808 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,808 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,808 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,809 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,809 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,809 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,811 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,811 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,812 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,812 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,812 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,813 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,820 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,821 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,821 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,822 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,822 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,823 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,823 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,823 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,823 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,823 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,824 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,824 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:56:21,839 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-07 01:56:21,908 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:56:21,919 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:56:21,919 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 01:56:21,953 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:56:21,964 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 94 transitions, 196 flow [2021-11-07 01:56:21,968 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 94 transitions, 196 flow [2021-11-07 01:56:21,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 196 flow [2021-11-07 01:56:22,034 INFO L129 PetriNetUnfolder]: 0/93 cut-off events. [2021-11-07 01:56:22,034 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-07 01:56:22,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-07 01:56:22,039 INFO L116 LiptonReduction]: Number of co-enabled transitions 1782 [2021-11-07 01:56:25,917 INFO L131 LiptonReduction]: Checked pairs total: 11230 [2021-11-07 01:56:25,917 INFO L133 LiptonReduction]: Total number of compositions: 50 [2021-11-07 01:56:25,925 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 44 transitions, 96 flow [2021-11-07 01:56:25,958 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:25,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:25,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:56:25,968 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:25,969 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:25,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:25,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:25,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1503300388, now seen corresponding path program 1 times [2021-11-07 01:56:25,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:25,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085404942] [2021-11-07 01:56:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:25,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:26,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:26,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085404942] [2021-11-07 01:56:26,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085404942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:26,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:26,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:56:26,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313736446] [2021-11-07 01:56:26,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:56:26,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:26,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:56:26,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:56:26,366 INFO L87 Difference]: Start difference. First operand has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 0 states have call successors, (0), 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 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) [2021-11-07 01:56:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:26,656 INFO L93 Difference]: Finished difference Result 440 states and 831 transitions. [2021-11-07 01:56:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:56:26,660 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 [2021-11-07 01:56:26,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:26,675 INFO L225 Difference]: With dead ends: 440 [2021-11-07 01:56:26,675 INFO L226 Difference]: Without dead ends: 440 [2021-11-07 01:56:26,676 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:56:26,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-07 01:56:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 426. [2021-11-07 01:56:26,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 416 states have (on average 1.9350961538461537) internal successors, (805), 425 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 805 transitions. [2021-11-07 01:56:26,745 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 805 transitions. Word has length 9 [2021-11-07 01:56:26,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:26,745 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 805 transitions. [2021-11-07 01:56:26,746 INFO L471 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) [2021-11-07 01:56:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 805 transitions. [2021-11-07 01:56:26,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:56:26,747 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:26,747 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:26,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:56:26,747 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:26,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:26,748 INFO L85 PathProgramCache]: Analyzing trace with hash 717205590, now seen corresponding path program 1 times [2021-11-07 01:56:26,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:26,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829019820] [2021-11-07 01:56:26,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:26,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:26,889 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:26,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829019820] [2021-11-07 01:56:26,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829019820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:26,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:26,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:56:26,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932245149] [2021-11-07 01:56:26,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:56:26,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:26,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:56:26,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:56:26,892 INFO L87 Difference]: Start difference. First operand 426 states and 805 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) [2021-11-07 01:56:27,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:27,129 INFO L93 Difference]: Finished difference Result 501 states and 949 transitions. [2021-11-07 01:56:27,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:56:27,130 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 [2021-11-07 01:56:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:27,134 INFO L225 Difference]: With dead ends: 501 [2021-11-07 01:56:27,135 INFO L226 Difference]: Without dead ends: 501 [2021-11-07 01:56:27,135 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:56:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-11-07 01:56:27,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 473. [2021-11-07 01:56:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 463 states have (on average 1.9330453563714902) internal successors, (895), 472 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:27,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 895 transitions. [2021-11-07 01:56:27,168 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 895 transitions. Word has length 9 [2021-11-07 01:56:27,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:27,168 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 895 transitions. [2021-11-07 01:56:27,168 INFO L471 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) [2021-11-07 01:56:27,168 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 895 transitions. [2021-11-07 01:56:27,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:56:27,170 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:27,170 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:27,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:56:27,171 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:27,171 INFO L85 PathProgramCache]: Analyzing trace with hash -2093137170, now seen corresponding path program 1 times [2021-11-07 01:56:27,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:27,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883143562] [2021-11-07 01:56:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:27,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:27,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:27,274 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:27,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883143562] [2021-11-07 01:56:27,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883143562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:27,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:27,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:56:27,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790738651] [2021-11-07 01:56:27,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:56:27,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:27,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:56:27,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:56:27,276 INFO L87 Difference]: Start difference. First operand 473 states and 895 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) [2021-11-07 01:56:27,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:27,467 INFO L93 Difference]: Finished difference Result 542 states and 1028 transitions. [2021-11-07 01:56:27,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:56:27,468 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 [2021-11-07 01:56:27,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:27,473 INFO L225 Difference]: With dead ends: 542 [2021-11-07 01:56:27,473 INFO L226 Difference]: Without dead ends: 542 [2021-11-07 01:56:27,474 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:56:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-11-07 01:56:27,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 525. [2021-11-07 01:56:27,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 515 states have (on average 1.9320388349514563) internal successors, (995), 524 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:27,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 995 transitions. [2021-11-07 01:56:27,499 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 995 transitions. Word has length 15 [2021-11-07 01:56:27,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:27,499 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 995 transitions. [2021-11-07 01:56:27,500 INFO L471 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) [2021-11-07 01:56:27,500 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 995 transitions. [2021-11-07 01:56:27,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:56:27,501 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:27,501 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:27,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 01:56:27,502 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:27,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1430606040, now seen corresponding path program 1 times [2021-11-07 01:56:27,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:27,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557499130] [2021-11-07 01:56:27,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:27,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:27,599 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:27,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557499130] [2021-11-07 01:56:27,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557499130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:27,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:27,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:56:27,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134661574] [2021-11-07 01:56:27,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:56:27,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:27,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:56:27,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:56:27,601 INFO L87 Difference]: Start difference. First operand 525 states and 995 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) [2021-11-07 01:56:27,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:27,971 INFO L93 Difference]: Finished difference Result 604 states and 1148 transitions. [2021-11-07 01:56:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:56:27,971 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 [2021-11-07 01:56:27,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:27,976 INFO L225 Difference]: With dead ends: 604 [2021-11-07 01:56:27,976 INFO L226 Difference]: Without dead ends: 591 [2021-11-07 01:56:27,976 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:56:27,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-11-07 01:56:27,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2021-11-07 01:56:27,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 581 states have (on average 1.9311531841652323) internal successors, (1122), 590 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:27,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1122 transitions. [2021-11-07 01:56:27,998 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1122 transitions. Word has length 15 [2021-11-07 01:56:27,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:27,998 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 1122 transitions. [2021-11-07 01:56:27,998 INFO L471 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) [2021-11-07 01:56:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1122 transitions. [2021-11-07 01:56:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:28,001 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:28,001 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:28,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 01:56:28,001 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:28,002 INFO L85 PathProgramCache]: Analyzing trace with hash -375944848, now seen corresponding path program 1 times [2021-11-07 01:56:28,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:28,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593423857] [2021-11-07 01:56:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:28,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:28,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:28,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:28,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593423857] [2021-11-07 01:56:28,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593423857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:28,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:28,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:28,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207420465] [2021-11-07 01:56:28,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:28,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:28,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:28,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:28,182 INFO L87 Difference]: Start difference. First operand 591 states and 1122 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:28,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:28,729 INFO L93 Difference]: Finished difference Result 1236 states and 2350 transitions. [2021-11-07 01:56:28,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:28,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:28,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:28,739 INFO L225 Difference]: With dead ends: 1236 [2021-11-07 01:56:28,739 INFO L226 Difference]: Without dead ends: 1236 [2021-11-07 01:56:28,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:28,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2021-11-07 01:56:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 673. [2021-11-07 01:56:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 663 states have (on average 1.9396681749622926) internal successors, (1286), 672 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:28,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1286 transitions. [2021-11-07 01:56:28,769 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1286 transitions. Word has length 18 [2021-11-07 01:56:28,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:28,770 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 1286 transitions. [2021-11-07 01:56:28,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1286 transitions. [2021-11-07 01:56:28,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:28,772 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:28,772 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:28,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 01:56:28,773 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:28,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:28,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2039164789, now seen corresponding path program 1 times [2021-11-07 01:56:28,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:28,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152404157] [2021-11-07 01:56:28,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:28,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:28,926 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:28,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152404157] [2021-11-07 01:56:28,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152404157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:28,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:28,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:28,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015694816] [2021-11-07 01:56:28,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:28,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:28,930 INFO L87 Difference]: Start difference. First operand 673 states and 1286 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:29,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:29,946 INFO L93 Difference]: Finished difference Result 1167 states and 2218 transitions. [2021-11-07 01:56:29,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:56:29,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:29,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:29,954 INFO L225 Difference]: With dead ends: 1167 [2021-11-07 01:56:29,954 INFO L226 Difference]: Without dead ends: 1167 [2021-11-07 01:56:29,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2021-11-07 01:56:29,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2021-11-07 01:56:29,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 816. [2021-11-07 01:56:29,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 806 states have (on average 1.9627791563275434) internal successors, (1582), 815 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:29,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1582 transitions. [2021-11-07 01:56:29,987 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1582 transitions. Word has length 18 [2021-11-07 01:56:29,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:29,987 INFO L470 AbstractCegarLoop]: Abstraction has 816 states and 1582 transitions. [2021-11-07 01:56:29,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:29,988 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1582 transitions. [2021-11-07 01:56:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:29,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:29,989 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:29,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 01:56:29,989 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:29,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:29,990 INFO L85 PathProgramCache]: Analyzing trace with hash -802927769, now seen corresponding path program 1 times [2021-11-07 01:56:29,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:29,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302978311] [2021-11-07 01:56:29,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:29,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:30,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:30,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:30,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302978311] [2021-11-07 01:56:30,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302978311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:30,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:30,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:30,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112625800] [2021-11-07 01:56:30,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:30,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:30,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:30,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:30,265 INFO L87 Difference]: Start difference. First operand 816 states and 1582 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:30,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:30,875 INFO L93 Difference]: Finished difference Result 1110 states and 2103 transitions. [2021-11-07 01:56:30,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:56:30,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:30,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:30,883 INFO L225 Difference]: With dead ends: 1110 [2021-11-07 01:56:30,884 INFO L226 Difference]: Without dead ends: 1106 [2021-11-07 01:56:30,884 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-07 01:56:30,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2021-11-07 01:56:30,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 809. [2021-11-07 01:56:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 799 states have (on average 1.9549436795994994) internal successors, (1562), 808 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) [2021-11-07 01:56:30,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1562 transitions. [2021-11-07 01:56:30,917 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1562 transitions. Word has length 18 [2021-11-07 01:56:30,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:30,917 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1562 transitions. [2021-11-07 01:56:30,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:30,917 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1562 transitions. [2021-11-07 01:56:30,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:30,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:30,919 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:30,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 01:56:30,919 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:30,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:30,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1852983964, now seen corresponding path program 1 times [2021-11-07 01:56:30,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:30,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500869502] [2021-11-07 01:56:30,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:30,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:31,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:31,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:31,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500869502] [2021-11-07 01:56:31,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500869502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:31,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:31,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:31,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251831039] [2021-11-07 01:56:31,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:31,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:31,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:31,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:31,068 INFO L87 Difference]: Start difference. First operand 809 states and 1562 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:31,569 INFO L93 Difference]: Finished difference Result 1099 states and 2083 transitions. [2021-11-07 01:56:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:31,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:31,579 INFO L225 Difference]: With dead ends: 1099 [2021-11-07 01:56:31,579 INFO L226 Difference]: Without dead ends: 1099 [2021-11-07 01:56:31,579 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:31,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2021-11-07 01:56:31,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 819. [2021-11-07 01:56:31,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 809 states have (on average 1.9555006180469716) internal successors, (1582), 818 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:31,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1582 transitions. [2021-11-07 01:56:31,608 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1582 transitions. Word has length 18 [2021-11-07 01:56:31,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:31,609 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1582 transitions. [2021-11-07 01:56:31,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1582 transitions. [2021-11-07 01:56:31,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:31,610 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:31,610 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:31,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 01:56:31,611 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:31,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:31,611 INFO L85 PathProgramCache]: Analyzing trace with hash -373599520, now seen corresponding path program 2 times [2021-11-07 01:56:31,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:31,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863287569] [2021-11-07 01:56:31,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:31,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:31,825 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:31,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863287569] [2021-11-07 01:56:31,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863287569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:31,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:31,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:31,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016819941] [2021-11-07 01:56:31,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:31,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:31,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:31,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:31,828 INFO L87 Difference]: Start difference. First operand 819 states and 1582 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:32,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:32,372 INFO L93 Difference]: Finished difference Result 955 states and 1834 transitions. [2021-11-07 01:56:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:32,372 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:32,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:32,379 INFO L225 Difference]: With dead ends: 955 [2021-11-07 01:56:32,379 INFO L226 Difference]: Without dead ends: 955 [2021-11-07 01:56:32,379 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:32,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2021-11-07 01:56:32,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 807. [2021-11-07 01:56:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 797 states have (on average 1.9548306148055208) internal successors, (1558), 806 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1558 transitions. [2021-11-07 01:56:32,406 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1558 transitions. Word has length 18 [2021-11-07 01:56:32,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:32,407 INFO L470 AbstractCegarLoop]: Abstraction has 807 states and 1558 transitions. [2021-11-07 01:56:32,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:32,407 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1558 transitions. [2021-11-07 01:56:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:32,408 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:32,409 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:32,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 01:56:32,409 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:32,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:32,410 INFO L85 PathProgramCache]: Analyzing trace with hash 624002350, now seen corresponding path program 3 times [2021-11-07 01:56:32,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:32,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157226009] [2021-11-07 01:56:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:32,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:32,618 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:32,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157226009] [2021-11-07 01:56:32,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157226009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:32,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:32,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:32,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171699118] [2021-11-07 01:56:32,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:32,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:32,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:32,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:32,620 INFO L87 Difference]: Start difference. First operand 807 states and 1558 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:33,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:33,193 INFO L93 Difference]: Finished difference Result 927 states and 1780 transitions. [2021-11-07 01:56:33,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:33,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:33,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:33,199 INFO L225 Difference]: With dead ends: 927 [2021-11-07 01:56:33,200 INFO L226 Difference]: Without dead ends: 927 [2021-11-07 01:56:33,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:33,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2021-11-07 01:56:33,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 795. [2021-11-07 01:56:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 785 states have (on average 1.954140127388535) internal successors, (1534), 794 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:33,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1534 transitions. [2021-11-07 01:56:33,227 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1534 transitions. Word has length 18 [2021-11-07 01:56:33,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:33,227 INFO L470 AbstractCegarLoop]: Abstraction has 795 states and 1534 transitions. [2021-11-07 01:56:33,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:33,228 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1534 transitions. [2021-11-07 01:56:33,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:33,229 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:33,229 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:33,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 01:56:33,230 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:33,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:33,230 INFO L85 PathProgramCache]: Analyzing trace with hash -67951270, now seen corresponding path program 4 times [2021-11-07 01:56:33,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:33,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556688042] [2021-11-07 01:56:33,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:33,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:33,528 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:33,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556688042] [2021-11-07 01:56:33,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556688042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:33,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:33,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:33,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18208963] [2021-11-07 01:56:33,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:33,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:33,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:33,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:33,530 INFO L87 Difference]: Start difference. First operand 795 states and 1534 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:34,060 INFO L93 Difference]: Finished difference Result 879 states and 1688 transitions. [2021-11-07 01:56:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:34,060 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:34,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:34,066 INFO L225 Difference]: With dead ends: 879 [2021-11-07 01:56:34,066 INFO L226 Difference]: Without dead ends: 879 [2021-11-07 01:56:34,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:34,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2021-11-07 01:56:34,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 771. [2021-11-07 01:56:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 761 states have (on average 1.947437582128778) internal successors, (1482), 770 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:34,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1482 transitions. [2021-11-07 01:56:34,092 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1482 transitions. Word has length 18 [2021-11-07 01:56:34,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:34,093 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1482 transitions. [2021-11-07 01:56:34,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1482 transitions. [2021-11-07 01:56:34,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:34,095 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:34,095 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:34,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 01:56:34,096 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:34,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:34,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2098109510, now seen corresponding path program 2 times [2021-11-07 01:56:34,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:34,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102512395] [2021-11-07 01:56:34,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:34,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:34,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:34,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:34,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102512395] [2021-11-07 01:56:34,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102512395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:34,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:34,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:34,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835341926] [2021-11-07 01:56:34,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:34,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:34,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:34,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:34,278 INFO L87 Difference]: Start difference. First operand 771 states and 1482 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:34,938 INFO L93 Difference]: Finished difference Result 881 states and 1694 transitions. [2021-11-07 01:56:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:34,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:34,944 INFO L225 Difference]: With dead ends: 881 [2021-11-07 01:56:34,945 INFO L226 Difference]: Without dead ends: 881 [2021-11-07 01:56:34,945 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:34,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2021-11-07 01:56:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 771. [2021-11-07 01:56:34,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 761 states have (on average 1.947437582128778) internal successors, (1482), 770 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:34,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1482 transitions. [2021-11-07 01:56:34,969 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1482 transitions. Word has length 18 [2021-11-07 01:56:34,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:34,970 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1482 transitions. [2021-11-07 01:56:34,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:34,970 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1482 transitions. [2021-11-07 01:56:34,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:34,971 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:34,971 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:34,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 01:56:34,972 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:34,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1986692344, now seen corresponding path program 3 times [2021-11-07 01:56:34,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:34,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182182586] [2021-11-07 01:56:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:34,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:35,199 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:35,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182182586] [2021-11-07 01:56:35,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182182586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:35,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:35,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:35,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093810797] [2021-11-07 01:56:35,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:35,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:35,201 INFO L87 Difference]: Start difference. First operand 771 states and 1482 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:35,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:35,903 INFO L93 Difference]: Finished difference Result 923 states and 1775 transitions. [2021-11-07 01:56:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:35,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:35,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:35,911 INFO L225 Difference]: With dead ends: 923 [2021-11-07 01:56:35,911 INFO L226 Difference]: Without dead ends: 923 [2021-11-07 01:56:35,911 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:35,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2021-11-07 01:56:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 771. [2021-11-07 01:56:35,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 761 states have (on average 1.947437582128778) internal successors, (1482), 770 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1482 transitions. [2021-11-07 01:56:35,936 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1482 transitions. Word has length 18 [2021-11-07 01:56:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:35,937 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1482 transitions. [2021-11-07 01:56:35,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:35,937 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1482 transitions. [2021-11-07 01:56:35,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:35,938 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:35,938 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:35,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 01:56:35,939 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:35,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:35,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1108194496, now seen corresponding path program 4 times [2021-11-07 01:56:35,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:35,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114248854] [2021-11-07 01:56:35,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:35,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:36,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:36,121 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:36,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114248854] [2021-11-07 01:56:36,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114248854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:36,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:36,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:36,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721383131] [2021-11-07 01:56:36,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:36,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:36,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:36,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:36,123 INFO L87 Difference]: Start difference. First operand 771 states and 1482 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:36,796 INFO L93 Difference]: Finished difference Result 915 states and 1757 transitions. [2021-11-07 01:56:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:36,802 INFO L225 Difference]: With dead ends: 915 [2021-11-07 01:56:36,802 INFO L226 Difference]: Without dead ends: 915 [2021-11-07 01:56:36,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:36,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2021-11-07 01:56:36,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 735. [2021-11-07 01:56:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 725 states have (on average 1.9448275862068964) internal successors, (1410), 734 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:36,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1410 transitions. [2021-11-07 01:56:36,826 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1410 transitions. Word has length 18 [2021-11-07 01:56:36,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:36,826 INFO L470 AbstractCegarLoop]: Abstraction has 735 states and 1410 transitions. [2021-11-07 01:56:36,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:36,826 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1410 transitions. [2021-11-07 01:56:36,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:36,828 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:36,828 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:36,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 01:56:36,829 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:36,829 INFO L85 PathProgramCache]: Analyzing trace with hash 141645800, now seen corresponding path program 5 times [2021-11-07 01:56:36,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:36,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034817300] [2021-11-07 01:56:36,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:36,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:37,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:37,009 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:37,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034817300] [2021-11-07 01:56:37,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034817300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:37,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:37,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:37,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821753859] [2021-11-07 01:56:37,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:37,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:37,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:37,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:37,011 INFO L87 Difference]: Start difference. First operand 735 states and 1410 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:37,481 INFO L93 Difference]: Finished difference Result 902 states and 1703 transitions. [2021-11-07 01:56:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:56:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:37,487 INFO L225 Difference]: With dead ends: 902 [2021-11-07 01:56:37,487 INFO L226 Difference]: Without dead ends: 902 [2021-11-07 01:56:37,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-07 01:56:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2021-11-07 01:56:37,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 697. [2021-11-07 01:56:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 689 states have (on average 1.9433962264150944) internal successors, (1339), 696 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:37,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1339 transitions. [2021-11-07 01:56:37,508 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1339 transitions. Word has length 18 [2021-11-07 01:56:37,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:37,510 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 1339 transitions. [2021-11-07 01:56:37,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1339 transitions. [2021-11-07 01:56:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:37,513 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:37,513 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:37,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 01:56:37,514 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:37,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:37,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1521574141, now seen corresponding path program 2 times [2021-11-07 01:56:37,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:37,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306009136] [2021-11-07 01:56:37,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:37,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:37,644 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:37,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306009136] [2021-11-07 01:56:37,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306009136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:37,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:37,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:37,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875771613] [2021-11-07 01:56:37,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:37,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:37,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:37,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:37,648 INFO L87 Difference]: Start difference. First operand 697 states and 1339 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:38,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:38,451 INFO L93 Difference]: Finished difference Result 897 states and 1699 transitions. [2021-11-07 01:56:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:56:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:38,455 INFO L225 Difference]: With dead ends: 897 [2021-11-07 01:56:38,455 INFO L226 Difference]: Without dead ends: 897 [2021-11-07 01:56:38,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:56:38,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2021-11-07 01:56:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 612. [2021-11-07 01:56:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 605 states have (on average 1.9322314049586777) internal successors, (1169), 611 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1169 transitions. [2021-11-07 01:56:38,475 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1169 transitions. Word has length 18 [2021-11-07 01:56:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:38,475 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 1169 transitions. [2021-11-07 01:56:38,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:38,475 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1169 transitions. [2021-11-07 01:56:38,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:38,476 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:38,477 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:38,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 01:56:38,477 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:38,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash -285337121, now seen corresponding path program 2 times [2021-11-07 01:56:38,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:38,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260800437] [2021-11-07 01:56:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:38,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:38,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:38,727 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:38,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260800437] [2021-11-07 01:56:38,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260800437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:38,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:38,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:38,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047479149] [2021-11-07 01:56:38,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:38,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:38,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:38,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:38,729 INFO L87 Difference]: Start difference. First operand 612 states and 1169 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:39,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:39,166 INFO L93 Difference]: Finished difference Result 913 states and 1724 transitions. [2021-11-07 01:56:39,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:39,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:39,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:39,172 INFO L225 Difference]: With dead ends: 913 [2021-11-07 01:56:39,172 INFO L226 Difference]: Without dead ends: 909 [2021-11-07 01:56:39,173 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:39,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2021-11-07 01:56:39,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 656. [2021-11-07 01:56:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 649 states have (on average 1.9368258859784284) internal successors, (1257), 655 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 1257 transitions. [2021-11-07 01:56:39,191 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 1257 transitions. Word has length 18 [2021-11-07 01:56:39,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:39,191 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 1257 transitions. [2021-11-07 01:56:39,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:39,192 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 1257 transitions. [2021-11-07 01:56:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:39,193 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:39,193 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:39,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 01:56:39,193 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:39,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:39,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1924392684, now seen corresponding path program 5 times [2021-11-07 01:56:39,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:39,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946047753] [2021-11-07 01:56:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:39,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:39,330 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:39,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946047753] [2021-11-07 01:56:39,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946047753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:39,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:39,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:39,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120065169] [2021-11-07 01:56:39,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:39,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:39,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:39,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:39,334 INFO L87 Difference]: Start difference. First operand 656 states and 1257 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:39,766 INFO L93 Difference]: Finished difference Result 830 states and 1565 transitions. [2021-11-07 01:56:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:56:39,767 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:39,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:39,771 INFO L225 Difference]: With dead ends: 830 [2021-11-07 01:56:39,771 INFO L226 Difference]: Without dead ends: 830 [2021-11-07 01:56:39,772 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-07 01:56:39,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-11-07 01:56:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 444. [2021-11-07 01:56:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 439 states have (on average 1.9088838268792712) internal successors, (838), 443 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 838 transitions. [2021-11-07 01:56:39,785 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 838 transitions. Word has length 18 [2021-11-07 01:56:39,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:39,786 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 838 transitions. [2021-11-07 01:56:39,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 838 transitions. [2021-11-07 01:56:39,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:39,787 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:39,787 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:39,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 01:56:39,787 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:39,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:39,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1298756471, now seen corresponding path program 3 times [2021-11-07 01:56:39,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:39,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158761286] [2021-11-07 01:56:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:39,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:40,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:40,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158761286] [2021-11-07 01:56:40,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158761286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:40,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:40,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:40,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620143075] [2021-11-07 01:56:40,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:40,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:40,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:40,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:40,031 INFO L87 Difference]: Start difference. First operand 444 states and 838 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:40,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:40,507 INFO L93 Difference]: Finished difference Result 619 states and 1176 transitions. [2021-11-07 01:56:40,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:40,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:40,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:40,510 INFO L225 Difference]: With dead ends: 619 [2021-11-07 01:56:40,511 INFO L226 Difference]: Without dead ends: 615 [2021-11-07 01:56:40,511 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:40,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2021-11-07 01:56:40,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 423. [2021-11-07 01:56:40,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 418 states have (on average 1.9066985645933014) internal successors, (797), 422 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 797 transitions. [2021-11-07 01:56:40,522 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 797 transitions. Word has length 18 [2021-11-07 01:56:40,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:40,523 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 797 transitions. [2021-11-07 01:56:40,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 797 transitions. [2021-11-07 01:56:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:40,524 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:40,524 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:40,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 01:56:40,524 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:40,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:40,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1719416687, now seen corresponding path program 4 times [2021-11-07 01:56:40,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:40,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988132583] [2021-11-07 01:56:40,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:40,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:40,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:40,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988132583] [2021-11-07 01:56:40,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988132583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:40,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:40,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:40,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947742316] [2021-11-07 01:56:40,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:40,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:40,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:40,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:40,760 INFO L87 Difference]: Start difference. First operand 423 states and 797 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:41,457 INFO L93 Difference]: Finished difference Result 577 states and 1094 transitions. [2021-11-07 01:56:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:41,460 INFO L225 Difference]: With dead ends: 577 [2021-11-07 01:56:41,461 INFO L226 Difference]: Without dead ends: 574 [2021-11-07 01:56:41,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:41,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-11-07 01:56:41,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 402. [2021-11-07 01:56:41,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 397 states have (on average 1.9042821158690175) internal successors, (756), 401 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:41,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 756 transitions. [2021-11-07 01:56:41,471 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 756 transitions. Word has length 18 [2021-11-07 01:56:41,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:41,471 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 756 transitions. [2021-11-07 01:56:41,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 756 transitions. [2021-11-07 01:56:41,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:56:41,473 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:41,473 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:41,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 01:56:41,473 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:41,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:41,474 INFO L85 PathProgramCache]: Analyzing trace with hash 608689703, now seen corresponding path program 5 times [2021-11-07 01:56:41,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:41,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587364986] [2021-11-07 01:56:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:41,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:41,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:41,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:41,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587364986] [2021-11-07 01:56:41,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587364986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:41,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:41,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:41,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079362284] [2021-11-07 01:56:41,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:41,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:41,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:41,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:41,724 INFO L87 Difference]: Start difference. First operand 402 states and 756 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:42,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:42,302 INFO L93 Difference]: Finished difference Result 501 states and 947 transitions. [2021-11-07 01:56:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:56:42,303 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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 [2021-11-07 01:56:42,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:42,305 INFO L225 Difference]: With dead ends: 501 [2021-11-07 01:56:42,305 INFO L226 Difference]: Without dead ends: 499 [2021-11-07 01:56:42,306 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:56:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-11-07 01:56:42,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 347. [2021-11-07 01:56:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 344 states have (on average 1.8895348837209303) internal successors, (650), 346 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:42,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 650 transitions. [2021-11-07 01:56:42,315 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 650 transitions. Word has length 18 [2021-11-07 01:56:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:42,316 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 650 transitions. [2021-11-07 01:56:42,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-11-07 01:56:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 650 transitions. [2021-11-07 01:56:42,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:56:42,317 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:42,317 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:42,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-07 01:56:42,318 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:42,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:42,318 INFO L85 PathProgramCache]: Analyzing trace with hash -758015851, now seen corresponding path program 1 times [2021-11-07 01:56:42,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:42,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680592190] [2021-11-07 01:56:42,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:42,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:42,392 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:42,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680592190] [2021-11-07 01:56:42,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680592190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:42,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:42,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:56:42,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371064004] [2021-11-07 01:56:42,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:56:42,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:42,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:56:42,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:56:42,394 INFO L87 Difference]: Start difference. First operand 347 states and 650 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:42,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:42,532 INFO L93 Difference]: Finished difference Result 369 states and 683 transitions. [2021-11-07 01:56:42,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:56:42,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-07 01:56:42,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:42,534 INFO L225 Difference]: With dead ends: 369 [2021-11-07 01:56:42,534 INFO L226 Difference]: Without dead ends: 329 [2021-11-07 01:56:42,535 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:56:42,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-11-07 01:56:42,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 325. [2021-11-07 01:56:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.8695652173913044) internal successors, (602), 324 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 602 transitions. [2021-11-07 01:56:42,541 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 602 transitions. Word has length 22 [2021-11-07 01:56:42,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:42,541 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 602 transitions. [2021-11-07 01:56:42,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:42,541 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 602 transitions. [2021-11-07 01:56:42,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:56:42,542 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:42,543 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:56:42,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-07 01:56:42,543 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:42,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1390679605, now seen corresponding path program 1 times [2021-11-07 01:56:42,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:42,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342261060] [2021-11-07 01:56:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:42,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:42,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:42,742 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:42,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342261060] [2021-11-07 01:56:42,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342261060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:42,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:42,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:42,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052130492] [2021-11-07 01:56:42,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:42,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:42,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:42,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:42,744 INFO L87 Difference]: Start difference. First operand 325 states and 602 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:43,108 INFO L93 Difference]: Finished difference Result 396 states and 726 transitions. [2021-11-07 01:56:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:56:43,108 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-07 01:56:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:43,111 INFO L225 Difference]: With dead ends: 396 [2021-11-07 01:56:43,111 INFO L226 Difference]: Without dead ends: 376 [2021-11-07 01:56:43,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:56:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-07 01:56:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 357. [2021-11-07 01:56:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 354 states have (on average 1.8502824858757063) internal successors, (655), 356 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:43,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 655 transitions. [2021-11-07 01:56:43,121 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 655 transitions. Word has length 31 [2021-11-07 01:56:43,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:43,121 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 655 transitions. [2021-11-07 01:56:43,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:43,121 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 655 transitions. [2021-11-07 01:56:43,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:56:43,122 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:43,123 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:56:43,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 01:56:43,123 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:43,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1571177148, now seen corresponding path program 1 times [2021-11-07 01:56:43,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:43,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20248276] [2021-11-07 01:56:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:43,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:43,257 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:43,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20248276] [2021-11-07 01:56:43,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20248276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:43,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:43,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:43,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909819369] [2021-11-07 01:56:43,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:43,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:43,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:43,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:43,270 INFO L87 Difference]: Start difference. First operand 357 states and 655 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:43,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:43,552 INFO L93 Difference]: Finished difference Result 425 states and 769 transitions. [2021-11-07 01:56:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:56:43,553 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-07 01:56:43,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:43,554 INFO L225 Difference]: With dead ends: 425 [2021-11-07 01:56:43,554 INFO L226 Difference]: Without dead ends: 321 [2021-11-07 01:56:43,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:56:43,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-07 01:56:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 269. [2021-11-07 01:56:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 267 states have (on average 1.7902621722846441) internal successors, (478), 268 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 478 transitions. [2021-11-07 01:56:43,562 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 478 transitions. Word has length 31 [2021-11-07 01:56:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:43,562 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 478 transitions. [2021-11-07 01:56:43,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 478 transitions. [2021-11-07 01:56:43,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:56:43,564 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:43,564 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:56:43,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-07 01:56:43,565 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:43,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:43,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1322028356, now seen corresponding path program 2 times [2021-11-07 01:56:43,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:43,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441146072] [2021-11-07 01:56:43,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:43,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:43,763 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:43,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441146072] [2021-11-07 01:56:43,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441146072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:43,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:43,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 01:56:43,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812645297] [2021-11-07 01:56:43,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:56:43,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:43,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:56:43,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:56:43,765 INFO L87 Difference]: Start difference. First operand 269 states and 478 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:44,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:44,422 INFO L93 Difference]: Finished difference Result 473 states and 845 transitions. [2021-11-07 01:56:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:56:44,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-07 01:56:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:44,426 INFO L225 Difference]: With dead ends: 473 [2021-11-07 01:56:44,426 INFO L226 Difference]: Without dead ends: 305 [2021-11-07 01:56:44,427 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2021-11-07 01:56:44,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-07 01:56:44,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 269. [2021-11-07 01:56:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 267 states have (on average 1.749063670411985) internal successors, (467), 268 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:44,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 467 transitions. [2021-11-07 01:56:44,434 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 467 transitions. Word has length 31 [2021-11-07 01:56:44,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:44,434 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 467 transitions. [2021-11-07 01:56:44,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:44,434 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 467 transitions. [2021-11-07 01:56:44,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:56:44,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:44,435 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:56:44,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-07 01:56:44,436 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:44,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:44,436 INFO L85 PathProgramCache]: Analyzing trace with hash 822886499, now seen corresponding path program 2 times [2021-11-07 01:56:44,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:44,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120244712] [2021-11-07 01:56:44,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:44,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:44,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:44,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:44,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120244712] [2021-11-07 01:56:44,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120244712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:44,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:44,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:44,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624429706] [2021-11-07 01:56:44,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:44,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:44,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:44,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:44,703 INFO L87 Difference]: Start difference. First operand 269 states and 467 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:45,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:45,080 INFO L93 Difference]: Finished difference Result 331 states and 565 transitions. [2021-11-07 01:56:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:56:45,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-07 01:56:45,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:45,082 INFO L225 Difference]: With dead ends: 331 [2021-11-07 01:56:45,082 INFO L226 Difference]: Without dead ends: 275 [2021-11-07 01:56:45,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:56:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-07 01:56:45,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2021-11-07 01:56:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 253 states have (on average 1.7351778656126482) internal successors, (439), 254 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 439 transitions. [2021-11-07 01:56:45,086 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 439 transitions. Word has length 31 [2021-11-07 01:56:45,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:45,086 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 439 transitions. [2021-11-07 01:56:45,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:45,086 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 439 transitions. [2021-11-07 01:56:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:56:45,087 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:45,087 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:56:45,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-07 01:56:45,087 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash 260488055, now seen corresponding path program 3 times [2021-11-07 01:56:45,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:45,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876279940] [2021-11-07 01:56:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:45,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:45,455 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:45,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876279940] [2021-11-07 01:56:45,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876279940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:45,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:45,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:45,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284100406] [2021-11-07 01:56:45,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:45,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:45,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:45,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:45,457 INFO L87 Difference]: Start difference. First operand 255 states and 439 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:46,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:46,022 INFO L93 Difference]: Finished difference Result 303 states and 510 transitions. [2021-11-07 01:56:46,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:56:46,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-07 01:56:46,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:46,024 INFO L225 Difference]: With dead ends: 303 [2021-11-07 01:56:46,024 INFO L226 Difference]: Without dead ends: 273 [2021-11-07 01:56:46,024 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:56:46,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-11-07 01:56:46,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 253. [2021-11-07 01:56:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 251 states have (on average 1.7330677290836654) internal successors, (435), 252 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 435 transitions. [2021-11-07 01:56:46,035 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 435 transitions. Word has length 31 [2021-11-07 01:56:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:46,035 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 435 transitions. [2021-11-07 01:56:46,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 435 transitions. [2021-11-07 01:56:46,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:56:46,036 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:46,037 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:56:46,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-07 01:56:46,037 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:46,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:46,038 INFO L85 PathProgramCache]: Analyzing trace with hash -80344015, now seen corresponding path program 4 times [2021-11-07 01:56:46,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:46,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253335905] [2021-11-07 01:56:46,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:46,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:46,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:46,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253335905] [2021-11-07 01:56:46,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253335905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:46,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:46,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 01:56:46,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905938430] [2021-11-07 01:56:46,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:46,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:46,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:46,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:46,474 INFO L87 Difference]: Start difference. First operand 253 states and 435 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:46,978 INFO L93 Difference]: Finished difference Result 267 states and 455 transitions. [2021-11-07 01:56:46,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:56:46,979 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-07 01:56:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:46,980 INFO L225 Difference]: With dead ends: 267 [2021-11-07 01:56:46,980 INFO L226 Difference]: Without dead ends: 208 [2021-11-07 01:56:46,981 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:56:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-07 01:56:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2021-11-07 01:56:46,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.8128342245989304) internal successors, (339), 187 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:46,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 339 transitions. [2021-11-07 01:56:46,985 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 339 transitions. Word has length 31 [2021-11-07 01:56:46,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:46,985 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 339 transitions. [2021-11-07 01:56:46,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:46,985 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 339 transitions. [2021-11-07 01:56:46,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:56:46,986 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:46,986 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:56:46,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-07 01:56:46,987 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:56:46,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:46,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1825642684, now seen corresponding path program 3 times [2021-11-07 01:56:46,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:56:46,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694809482] [2021-11-07 01:56:46,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:46,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:56:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:47,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:47,171 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:56:47,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694809482] [2021-11-07 01:56:47,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694809482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:47,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:47,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 01:56:47,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193590538] [2021-11-07 01:56:47,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:56:47,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:56:47,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:56:47,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:56:47,172 INFO L87 Difference]: Start difference. First operand 188 states and 339 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:47,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:47,860 INFO L93 Difference]: Finished difference Result 183 states and 330 transitions. [2021-11-07 01:56:47,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:56:47,860 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-07 01:56:47,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:47,861 INFO L225 Difference]: With dead ends: 183 [2021-11-07 01:56:47,861 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:56:47,861 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2021-11-07 01:56:47,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:56:47,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:56:47,862 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) [2021-11-07 01:56:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:56:47,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-11-07 01:56:47,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:47,862 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:56:47,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:56:47,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:56:47,865 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:56:47,865 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:56:47,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:56:47,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:56:47,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:56:47,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:56:47,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:56:47,867 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:56:47,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-07 01:56:47,869 INFO L731 BasicCegarLoop]: Path program histogram: [5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1] [2021-11-07 01:56:47,873 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:56:47,873 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:56:47,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:56:47 BasicIcfg [2021-11-07 01:56:47,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:56:47,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:56:47,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:56:47,876 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:56:47,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:21" (3/4) ... [2021-11-07 01:56:47,879 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:56:47,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-07 01:56:47,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 01:56:47,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 01:56:47,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:56:47,923 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:56:47,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:56:47,924 INFO L168 Benchmark]: Toolchain (without parser) took 27682.01 ms. Allocated memory was 123.7 MB in the beginning and 247.5 MB in the end (delta: 123.7 MB). Free memory was 84.3 MB in the beginning and 99.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 108.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:47,925 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 123.7 MB. Free memory is still 102.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:56:47,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.41 ms. Allocated memory is still 123.7 MB. Free memory was 84.1 MB in the beginning and 80.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:47,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.34 ms. Allocated memory is still 123.7 MB. Free memory was 80.4 MB in the beginning and 77.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:47,926 INFO L168 Benchmark]: Boogie Preprocessor took 67.19 ms. Allocated memory is still 123.7 MB. Free memory was 77.8 MB in the beginning and 76.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:47,927 INFO L168 Benchmark]: RCFGBuilder took 529.30 ms. Allocated memory is still 123.7 MB. Free memory was 76.3 MB in the beginning and 62.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:47,927 INFO L168 Benchmark]: TraceAbstraction took 26150.61 ms. Allocated memory was 123.7 MB in the beginning and 247.5 MB in the end (delta: 123.7 MB). Free memory was 61.6 MB in the beginning and 101.9 MB in the end (delta: -40.3 MB). Peak memory consumption was 84.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:47,927 INFO L168 Benchmark]: Witness Printer took 47.28 ms. Allocated memory is still 247.5 MB. Free memory was 101.9 MB in the beginning and 99.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:56:47,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 123.7 MB. Free memory is still 102.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 786.41 ms. Allocated memory is still 123.7 MB. Free memory was 84.1 MB in the beginning and 80.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.34 ms. Allocated memory is still 123.7 MB. Free memory was 80.4 MB in the beginning and 77.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.19 ms. Allocated memory is still 123.7 MB. Free memory was 77.8 MB in the beginning and 76.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 529.30 ms. Allocated memory is still 123.7 MB. Free memory was 76.3 MB in the beginning and 62.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26150.61 ms. Allocated memory was 123.7 MB in the beginning and 247.5 MB in the end (delta: 123.7 MB). Free memory was 61.6 MB in the beginning and 101.9 MB in the end (delta: -40.3 MB). Peak memory consumption was 84.1 MB. Max. memory is 16.1 GB. * Witness Printer took 47.28 ms. Allocated memory is still 247.5 MB. Free memory was 101.9 MB in the beginning and 99.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 98 PlacesBefore, 48 PlacesAfterwards, 94 TransitionsBefore, 44 TransitionsAfterwards, 1782 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 11230 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2854, positive: 2344, positive conditional: 0, positive unconditional: 2344, negative: 510, negative conditional: 0, negative unconditional: 510, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1178, positive: 1075, positive conditional: 0, positive unconditional: 1075, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1178, positive: 981, positive conditional: 0, positive unconditional: 981, negative: 197, negative conditional: 0, negative unconditional: 197, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 197, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 497, positive: 232, positive conditional: 0, positive unconditional: 232, negative: 265, negative conditional: 0, negative unconditional: 265, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2854, positive: 1269, positive conditional: 0, positive unconditional: 1269, negative: 407, negative conditional: 0, negative unconditional: 407, unknown: 1178, unknown conditional: 0, unknown unconditional: 1178] , Statistics on independence cache: Total cache size (in pairs): 436, Positive cache size: 350, Positive conditional cache size: 0, Positive unconditional cache size: 350, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86 - 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: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 934]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: 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, 124 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 25.9s, OverallIterations: 29, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1294 SDtfs, 3231 SDslu, 1520 SDs, 0 SdLazy, 12657 SolverSat, 1556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 451 GetRequests, 5 SyntacticMatches, 48 SemanticMatches, 398 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=819occurred in iteration=8, InterpolantAutomatonStates: 286, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 29 MinimizatonAttempts, 4196 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 593 NumberOfCodeBlocks, 593 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 564 ConstructedInterpolants, 0 QuantifiedInterpolants, 11886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-07 01:56:47,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27944ef-b961-40b2-b2bb-fb69201f5cfb/bin/utaipan-UUZaoUuFF8/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