./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:47:13,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:47:13,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:47:14,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:47:14,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:47:14,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:47:14,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:47:14,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:47:14,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:47:14,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:47:14,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:47:14,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:47:14,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:47:14,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:47:14,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:47:14,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:47:14,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:47:14,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:47:14,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:47:14,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:47:14,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:47:14,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:47:14,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:47:14,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:47:14,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:47:14,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:47:14,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:47:14,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:47:14,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:47:14,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:47:14,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:47:14,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:47:14,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:47:14,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:47:14,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:47:14,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:47:14,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:47:14,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:47:14,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:47:14,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:47:14,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:47:14,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-20 23:47:14,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:47:14,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:47:14,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:47:14,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:47:14,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:47:14,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:47:14,127 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:47:14,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:47:14,128 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:47:14,128 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:47:14,129 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:47:14,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:47:14,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:47:14,130 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:47:14,130 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:47:14,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:47:14,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:47:14,131 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:47:14,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:47:14,132 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:47:14,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 23:47:14,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:47:14,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:47:14,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:47:14,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:47:14,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:47:14,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:47:14,135 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 23:47:14,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:47:14,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:47:14,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:47:14,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:47:14,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:47:14,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:47:14,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:47:14,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:47:14,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:47:14,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:47:14,138 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:47:14,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:47:14,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:47:14,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:47:14,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:47:14,139 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_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2021-11-20 23:47:14,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:47:14,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:47:14,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:47:14,498 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:47:14,499 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:47:14,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2021-11-20 23:47:14,580 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/data/73a020c46/905c5d2509d344198a904670c6791ad0/FLAGc03f4b773 [2021-11-20 23:47:15,274 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:47:15,275 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2021-11-20 23:47:15,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/data/73a020c46/905c5d2509d344198a904670c6791ad0/FLAGc03f4b773 [2021-11-20 23:47:15,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/data/73a020c46/905c5d2509d344198a904670c6791ad0 [2021-11-20 23:47:15,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:47:15,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:47:15,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:47:15,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:47:15,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:47:15,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:15" (1/1) ... [2021-11-20 23:47:15,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d925e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:15, skipping insertion in model container [2021-11-20 23:47:15,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:15" (1/1) ... [2021-11-20 23:47:15,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:47:15,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:47:16,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:47:16,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:47:16,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:47:16,431 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:47:16,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16 WrapperNode [2021-11-20 23:47:16,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:47:16,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:47:16,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:47:16,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:47:16,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,527 INFO L137 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2021-11-20 23:47:16,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:47:16,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:47:16,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:47:16,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:47:16,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:47:16,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:47:16,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:47:16,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:47:16,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (1/1) ... [2021-11-20 23:47:16,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:47:16,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:47:16,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:47:16,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:47:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:47:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:47:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:47:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:47:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 23:47:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:47:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 23:47:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 23:47:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:47:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:47:16,688 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 23:47:16,834 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:47:16,836 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:47:17,114 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:47:17,123 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:47:17,124 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 23:47:17,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:17 BoogieIcfgContainer [2021-11-20 23:47:17,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:47:17,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:47:17,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:47:17,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:47:17,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:47:15" (1/3) ... [2021-11-20 23:47:17,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f31b24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:47:17, skipping insertion in model container [2021-11-20 23:47:17,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:16" (2/3) ... [2021-11-20 23:47:17,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f31b24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:47:17, skipping insertion in model container [2021-11-20 23:47:17,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:17" (3/3) ... [2021-11-20 23:47:17,161 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2021-11-20 23:47:17,170 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 23:47:17,171 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:47:17,171 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 23:47:17,171 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 23:47:17,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:47:17,278 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 23:47:17,322 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:47:17,329 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 [2021-11-20 23:47:17,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-20 23:47:17,342 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-20 23:47:17,356 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 106 transitions, 217 flow [2021-11-20 23:47:17,359 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 106 transitions, 217 flow [2021-11-20 23:47:17,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 106 transitions, 217 flow [2021-11-20 23:47:17,410 INFO L129 PetriNetUnfolder]: 4/105 cut-off events. [2021-11-20 23:47:17,411 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 23:47:17,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-11-20 23:47:17,419 INFO L116 LiptonReduction]: Number of co-enabled transitions 2400 [2021-11-20 23:47:19,843 INFO L131 LiptonReduction]: Checked pairs total: 11917 [2021-11-20 23:47:19,843 INFO L133 LiptonReduction]: Total number of compositions: 83 [2021-11-20 23:47:19,852 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 38 transitions, 81 flow [2021-11-20 23:47:19,877 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 288 states, 280 states have (on average 1.9892857142857143) internal successors, (557), 287 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:19,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 280 states have (on average 1.9892857142857143) internal successors, (557), 287 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-20 23:47:19,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:19,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-20 23:47:19,887 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:19,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:19,892 INFO L85 PathProgramCache]: Analyzing trace with hash 353294015, now seen corresponding path program 1 times [2021-11-20 23:47:19,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:19,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637649144] [2021-11-20 23:47:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:19,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:47:20,137 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:20,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637649144] [2021-11-20 23:47:20,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637649144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:47:20,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:47:20,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:47:20,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075863415] [2021-11-20 23:47:20,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:47:20,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:47:20,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:20,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:47:20,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:47:20,174 INFO L87 Difference]: Start difference. First operand has 288 states, 280 states have (on average 1.9892857142857143) internal successors, (557), 287 states have internal predecessors, (557), 0 states have call successors, (0), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:20,254 INFO L93 Difference]: Finished difference Result 289 states and 541 transitions. [2021-11-20 23:47:20,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:47:20,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-11-20 23:47:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:20,280 INFO L225 Difference]: With dead ends: 289 [2021-11-20 23:47:20,281 INFO L226 Difference]: Without dead ends: 289 [2021-11-20 23:47:20,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:47:20,288 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:20,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:47:20,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-20 23:47:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-11-20 23:47:20,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 281 states have (on average 1.9252669039145907) internal successors, (541), 288 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 541 transitions. [2021-11-20 23:47:20,368 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 541 transitions. Word has length 5 [2021-11-20 23:47:20,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:20,368 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 541 transitions. [2021-11-20 23:47:20,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 541 transitions. [2021-11-20 23:47:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 23:47:20,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:20,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:47:20,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:47:20,373 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:20,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:20,375 INFO L85 PathProgramCache]: Analyzing trace with hash -500732453, now seen corresponding path program 1 times [2021-11-20 23:47:20,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:20,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517161485] [2021-11-20 23:47:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:20,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:47:20,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:20,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517161485] [2021-11-20 23:47:20,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517161485] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:47:20,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535790396] [2021-11-20 23:47:20,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:20,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:47:20,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:47:20,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:47:20,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:47:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:20,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:47:20,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:47:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:47:20,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:47:20,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:47:20,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535790396] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:47:20,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1078063014] [2021-11-20 23:47:20,745 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-20 23:47:20,761 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 23:47:20,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-20 23:47:20,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452171119] [2021-11-20 23:47:20,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 23:47:20,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 23:47:20,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:20,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 23:47:20,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:47:20,764 INFO L87 Difference]: Start difference. First operand 289 states and 541 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:20,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:20,827 INFO L93 Difference]: Finished difference Result 292 states and 544 transitions. [2021-11-20 23:47:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:47:20,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-20 23:47:20,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:20,830 INFO L225 Difference]: With dead ends: 292 [2021-11-20 23:47:20,830 INFO L226 Difference]: Without dead ends: 292 [2021-11-20 23:47:20,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:47:20,832 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:20,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:47:20,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-11-20 23:47:20,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-11-20 23:47:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 284 states have (on average 1.9154929577464788) internal successors, (544), 291 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 544 transitions. [2021-11-20 23:47:20,870 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 544 transitions. Word has length 11 [2021-11-20 23:47:20,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:20,871 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 544 transitions. [2021-11-20 23:47:20,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 544 transitions. [2021-11-20 23:47:20,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 23:47:20,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:20,872 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:47:20,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 23:47:21,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-20 23:47:21,102 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:21,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:21,102 INFO L85 PathProgramCache]: Analyzing trace with hash 7324901, now seen corresponding path program 2 times [2021-11-20 23:47:21,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:21,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500501817] [2021-11-20 23:47:21,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:21,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:47:21,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:21,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500501817] [2021-11-20 23:47:21,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500501817] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:47:21,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:47:21,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:47:21,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628229420] [2021-11-20 23:47:21,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:47:21,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:47:21,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:21,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:47:21,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:47:21,304 INFO L87 Difference]: Start difference. First operand 292 states and 544 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:21,648 INFO L93 Difference]: Finished difference Result 324 states and 602 transitions. [2021-11-20 23:47:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:47:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-20 23:47:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:21,651 INFO L225 Difference]: With dead ends: 324 [2021-11-20 23:47:21,651 INFO L226 Difference]: Without dead ends: 324 [2021-11-20 23:47:21,652 INFO L932 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 [2021-11-20 23:47:21,653 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:21,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 26 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 23:47:21,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-20 23:47:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 310. [2021-11-20 23:47:21,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 303 states have (on average 1.900990099009901) internal successors, (576), 309 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 576 transitions. [2021-11-20 23:47:21,694 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 576 transitions. Word has length 14 [2021-11-20 23:47:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:21,695 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 576 transitions. [2021-11-20 23:47:21,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 576 transitions. [2021-11-20 23:47:21,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 23:47:21,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:21,696 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:47:21,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:47:21,697 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:21,697 INFO L85 PathProgramCache]: Analyzing trace with hash 483800240, now seen corresponding path program 1 times [2021-11-20 23:47:21,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:21,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245414577] [2021-11-20 23:47:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:21,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:47:21,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:21,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245414577] [2021-11-20 23:47:21,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245414577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:47:21,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:47:21,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:47:21,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233511528] [2021-11-20 23:47:21,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:47:21,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:47:21,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:21,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:47:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:47:21,877 INFO L87 Difference]: Start difference. First operand 310 states and 576 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:22,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:22,136 INFO L93 Difference]: Finished difference Result 343 states and 636 transitions. [2021-11-20 23:47:22,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:47:22,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-20 23:47:22,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:22,139 INFO L225 Difference]: With dead ends: 343 [2021-11-20 23:47:22,139 INFO L226 Difference]: Without dead ends: 343 [2021-11-20 23:47:22,140 INFO L932 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 [2021-11-20 23:47:22,141 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 34 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:22,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 16 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:47:22,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-11-20 23:47:22,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 329. [2021-11-20 23:47:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 322 states have (on average 1.8944099378881987) internal successors, (610), 328 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 610 transitions. [2021-11-20 23:47:22,159 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 610 transitions. Word has length 14 [2021-11-20 23:47:22,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:22,159 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 610 transitions. [2021-11-20 23:47:22,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 610 transitions. [2021-11-20 23:47:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 23:47:22,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:22,161 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:47:22,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:47:22,161 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:22,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1654936259, now seen corresponding path program 1 times [2021-11-20 23:47:22,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:22,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186015538] [2021-11-20 23:47:22,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:22,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:22,256 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:47:22,256 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:22,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186015538] [2021-11-20 23:47:22,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186015538] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:47:22,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34569084] [2021-11-20 23:47:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:22,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:47:22,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:47:22,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:47:22,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:47:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:22,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:47:22,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:47:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:47:22,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:47:22,510 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:47:22,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34569084] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:47:22,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2058701635] [2021-11-20 23:47:22,513 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-20 23:47:22,517 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 23:47:22,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-20 23:47:22,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730821985] [2021-11-20 23:47:22,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 23:47:22,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:47:22,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:47:22,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-20 23:47:22,524 INFO L87 Difference]: Start difference. First operand 329 states and 610 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:22,588 INFO L93 Difference]: Finished difference Result 335 states and 616 transitions. [2021-11-20 23:47:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 23:47:22,588 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 23:47:22,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:22,591 INFO L225 Difference]: With dead ends: 335 [2021-11-20 23:47:22,591 INFO L226 Difference]: Without dead ends: 335 [2021-11-20 23:47:22,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-20 23:47:22,594 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:22,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:47:22,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-11-20 23:47:22,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2021-11-20 23:47:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 328 states have (on average 1.8780487804878048) internal successors, (616), 334 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:22,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 616 transitions. [2021-11-20 23:47:22,616 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 616 transitions. Word has length 20 [2021-11-20 23:47:22,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:22,616 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 616 transitions. [2021-11-20 23:47:22,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:22,617 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 616 transitions. [2021-11-20 23:47:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:47:22,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:22,623 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:47:22,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:47:22,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e977c142-e741-401a-a986-105bf4f96103/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:47:22,852 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash 541613827, now seen corresponding path program 2 times [2021-11-20 23:47:22,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:22,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78004584] [2021-11-20 23:47:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:22,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:22,975 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 23:47:22,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:22,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78004584] [2021-11-20 23:47:22,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78004584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:47:22,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:47:22,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:47:22,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468162471] [2021-11-20 23:47:22,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:47:22,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:47:22,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:22,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:47:22,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:47:22,977 INFO L87 Difference]: Start difference. First operand 335 states and 616 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:23,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:23,279 INFO L93 Difference]: Finished difference Result 402 states and 743 transitions. [2021-11-20 23:47:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:47:23,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-20 23:47:23,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:23,284 INFO L225 Difference]: With dead ends: 402 [2021-11-20 23:47:23,284 INFO L226 Difference]: Without dead ends: 376 [2021-11-20 23:47:23,284 INFO L932 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 [2021-11-20 23:47:23,285 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 34 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:23,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 26 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 23:47:23,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-20 23:47:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 361. [2021-11-20 23:47:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 354 states have (on average 1.8700564971751412) internal successors, (662), 360 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 662 transitions. [2021-11-20 23:47:23,300 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 662 transitions. Word has length 26 [2021-11-20 23:47:23,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:23,301 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 662 transitions. [2021-11-20 23:47:23,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:23,301 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 662 transitions. [2021-11-20 23:47:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:47:23,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:23,302 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:47:23,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:47:23,303 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:23,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:23,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1741996132, now seen corresponding path program 1 times [2021-11-20 23:47:23,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:23,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932325785] [2021-11-20 23:47:23,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:23,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 23:47:23,427 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:23,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932325785] [2021-11-20 23:47:23,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932325785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:47:23,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:47:23,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:47:23,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033013406] [2021-11-20 23:47:23,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:47:23,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:47:23,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:23,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:47:23,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:47:23,429 INFO L87 Difference]: Start difference. First operand 361 states and 662 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:23,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:23,632 INFO L93 Difference]: Finished difference Result 412 states and 756 transitions. [2021-11-20 23:47:23,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:47:23,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-20 23:47:23,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:23,635 INFO L225 Difference]: With dead ends: 412 [2021-11-20 23:47:23,635 INFO L226 Difference]: Without dead ends: 386 [2021-11-20 23:47:23,636 INFO L932 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 [2021-11-20 23:47:23,636 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 32 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:23,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:47:23,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-20 23:47:23,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2021-11-20 23:47:23,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 379 states have (on average 1.8522427440633245) internal successors, (702), 385 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 702 transitions. [2021-11-20 23:47:23,651 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 702 transitions. Word has length 26 [2021-11-20 23:47:23,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:23,652 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 702 transitions. [2021-11-20 23:47:23,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 702 transitions. [2021-11-20 23:47:23,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 23:47:23,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:23,654 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:47:23,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:47:23,654 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:23,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:23,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1807912076, now seen corresponding path program 1 times [2021-11-20 23:47:23,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:23,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103602569] [2021-11-20 23:47:23,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:23,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:47:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 23:47:24,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:47:24,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103602569] [2021-11-20 23:47:24,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103602569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:47:24,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:47:24,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:47:24,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231568983] [2021-11-20 23:47:24,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:47:24,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 23:47:24,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:47:24,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 23:47:24,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:47:24,018 INFO L87 Difference]: Start difference. First operand 386 states and 702 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:24,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:47:24,637 INFO L93 Difference]: Finished difference Result 762 states and 1390 transitions. [2021-11-20 23:47:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 23:47:24,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-20 23:47:24,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:47:24,643 INFO L225 Difference]: With dead ends: 762 [2021-11-20 23:47:24,643 INFO L226 Difference]: Without dead ends: 762 [2021-11-20 23:47:24,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-20 23:47:24,644 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 103 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:47:24,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 15 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 23:47:24,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-11-20 23:47:24,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 438. [2021-11-20 23:47:24,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 431 states have (on average 1.8700696055684454) internal successors, (806), 437 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:24,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 806 transitions. [2021-11-20 23:47:24,664 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 806 transitions. Word has length 29 [2021-11-20 23:47:24,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:47:24,664 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 806 transitions. [2021-11-20 23:47:24,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:47:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 806 transitions. [2021-11-20 23:47:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 23:47:24,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:47:24,666 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:47:24,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:47:24,666 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:47:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:47:24,667 INFO L85 PathProgramCache]: Analyzing trace with hash -752440991, now seen corresponding path program 1 times [2021-11-20 23:47:24,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:47:24,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342611903] [2021-11-20 23:47:24,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:47:24,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:47:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat