./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/gcd-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/gcd-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:32:36,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:32:36,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 20:32:36,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:32:36,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:32:36,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:32:36,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:32:36,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:32:36,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:32:36,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:32:36,380 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:32:36,381 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:32:36,381 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:32:36,383 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:32:36,384 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:32:36,385 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:32:36,385 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:32:36,386 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:32:36,386 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:32:36,387 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:32:36,389 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:32:36,389 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:32:36,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:32:36,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:32:36,392 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:32:36,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:32:36,393 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:32:36,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:32:36,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:32:36,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:32:36,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:32:36,396 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 20:32:36,396 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:32:36,397 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:32:36,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:32:36,397 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:32:36,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:32:36,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:32:36,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:36,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:32:36,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:32:36,399 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:32:36,399 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:32:36,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:32:36,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:32:36,400 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:32:36,400 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:32:36,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:32:36,401 INFO L153 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_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 [2023-11-23 20:32:36,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:32:36,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:32:36,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:32:36,797 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:32:36,798 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:32:36,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/pthread-atomic/gcd-2.i [2023-11-23 20:32:39,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:32:40,292 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:32:40,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/sv-benchmarks/c/pthread-atomic/gcd-2.i [2023-11-23 20:32:40,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/data/b41ec8ad7/b4011d19e8fc4516931d50bbcf81585f/FLAG70478ef44 [2023-11-23 20:32:40,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/data/b41ec8ad7/b4011d19e8fc4516931d50bbcf81585f [2023-11-23 20:32:40,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:32:40,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:32:40,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:40,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:32:40,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:32:40,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:40,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b149dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40, skipping insertion in model container [2023-11-23 20:32:40,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:40,405 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:32:40,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:40,810 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:32:40,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:40,968 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:32:40,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40 WrapperNode [2023-11-23 20:32:40,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:40,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:40,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:32:40,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:32:40,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,046 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 193 [2023-11-23 20:32:41,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:41,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:32:41,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:32:41,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:32:41,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:32:41,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:32:41,093 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:32:41,093 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:32:41,094 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (1/1) ... [2023-11-23 20:32:41,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:41,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:41,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:32:41,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:32:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:32:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:32:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:32:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:32:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:32:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2023-11-23 20:32:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2023-11-23 20:32:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2023-11-23 20:32:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2023-11-23 20:32:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:32:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:32:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:32:41,197 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 20:32:41,420 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:32:41,424 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:32:41,964 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:32:42,129 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:32:42,130 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:32:42,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:42 BoogieIcfgContainer [2023-11-23 20:32:42,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:32:42,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:32:42,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:32:42,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:32:42,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:32:40" (1/3) ... [2023-11-23 20:32:42,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ced14f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:42, skipping insertion in model container [2023-11-23 20:32:42,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:40" (2/3) ... [2023-11-23 20:32:42,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ced14f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:42, skipping insertion in model container [2023-11-23 20:32:42,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:42" (3/3) ... [2023-11-23 20:32:42,149 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2023-11-23 20:32:42,159 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 20:32:42,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:32:42,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-11-23 20:32:42,171 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 20:32:42,247 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 20:32:42,285 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 211 places, 219 transitions, 452 flow [2023-11-23 20:32:42,485 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3210 states, 3072 states have (on average 3.0315755208333335) internal successors, (9313), 3209 states have internal predecessors, (9313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:42,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:32:42,511 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@131ba7a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:32:42,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2023-11-23 20:32:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 3210 states, 3072 states have (on average 3.0315755208333335) internal successors, (9313), 3209 states have internal predecessors, (9313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:42,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 20:32:42,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:42,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:42,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-23 20:32:42,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:42,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2060796990, now seen corresponding path program 1 times [2023-11-23 20:32:42,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:42,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393879713] [2023-11-23 20:32:42,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:42,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:42,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:32:42,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:32:42,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393879713] [2023-11-23 20:32:42,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393879713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:42,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:42,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:32:42,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148589065] [2023-11-23 20:32:42,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:42,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:32:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:32:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:32:42,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:42,912 INFO L87 Difference]: Start difference. First operand has 3210 states, 3072 states have (on average 3.0315755208333335) internal successors, (9313), 3209 states have internal predecessors, (9313), 0 states have call successors, (0), 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, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:43,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:43,046 INFO L93 Difference]: Finished difference Result 1684 states and 4600 transitions. [2023-11-23 20:32:43,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:32:43,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-11-23 20:32:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:43,090 INFO L225 Difference]: With dead ends: 1684 [2023-11-23 20:32:43,090 INFO L226 Difference]: Without dead ends: 1682 [2023-11-23 20:32:43,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:43,101 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:43,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 198 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:32:43,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-11-23 20:32:43,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1682. [2023-11-23 20:32:43,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1660 states have (on average 2.769879518072289) internal successors, (4598), 1681 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:43,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 4598 transitions. [2023-11-23 20:32:43,373 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 4598 transitions. Word has length 45 [2023-11-23 20:32:43,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:43,374 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 4598 transitions. [2023-11-23 20:32:43,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 4598 transitions. [2023-11-23 20:32:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 20:32:43,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:43,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:43,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:32:43,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-23 20:32:43,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:43,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1496967024, now seen corresponding path program 1 times [2023-11-23 20:32:43,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:43,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589166161] [2023-11-23 20:32:43,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:43,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:43,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:32:43,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:32:43,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589166161] [2023-11-23 20:32:43,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589166161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:43,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:43,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:32:43,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395694155] [2023-11-23 20:32:43,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:43,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:32:43,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:32:43,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:32:43,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:43,567 INFO L87 Difference]: Start difference. First operand 1682 states and 4598 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:43,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:43,624 INFO L93 Difference]: Finished difference Result 1681 states and 4597 transitions. [2023-11-23 20:32:43,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:32:43,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-11-23 20:32:43,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:43,642 INFO L225 Difference]: With dead ends: 1681 [2023-11-23 20:32:43,643 INFO L226 Difference]: Without dead ends: 1681 [2023-11-23 20:32:43,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:43,645 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 1 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:43,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 194 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:32:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2023-11-23 20:32:43,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1681. [2023-11-23 20:32:43,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1681 states, 1660 states have (on average 2.769277108433735) internal successors, (4597), 1680 states have internal predecessors, (4597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:43,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 4597 transitions. [2023-11-23 20:32:43,736 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 4597 transitions. Word has length 50 [2023-11-23 20:32:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:43,737 INFO L495 AbstractCegarLoop]: Abstraction has 1681 states and 4597 transitions. [2023-11-23 20:32:43,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 4597 transitions. [2023-11-23 20:32:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 20:32:43,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:43,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:43,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:32:43,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting dec_aErr0ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-23 20:32:43,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:43,745 INFO L85 PathProgramCache]: Analyzing trace with hash 311424583, now seen corresponding path program 1 times [2023-11-23 20:32:43,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:43,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938736432] [2023-11-23 20:32:43,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:43,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:32:43,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:32:43,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938736432] [2023-11-23 20:32:43,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938736432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:43,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:43,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:32:43,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608540830] [2023-11-23 20:32:43,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:43,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:32:43,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:32:43,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:32:43,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:43,838 INFO L87 Difference]: Start difference. First operand 1681 states and 4597 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:43,924 INFO L93 Difference]: Finished difference Result 1654 states and 4427 transitions. [2023-11-23 20:32:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:32:43,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2023-11-23 20:32:43,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:43,945 INFO L225 Difference]: With dead ends: 1654 [2023-11-23 20:32:43,946 INFO L226 Difference]: Without dead ends: 1648 [2023-11-23 20:32:43,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:43,953 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 44 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:43,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 194 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:32:43,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2023-11-23 20:32:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1548. [2023-11-23 20:32:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1534 states have (on average 2.6910039113428943) internal successors, (4128), 1547 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:44,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 4128 transitions. [2023-11-23 20:32:44,022 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 4128 transitions. Word has length 60 [2023-11-23 20:32:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:44,025 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 4128 transitions. [2023-11-23 20:32:44,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 4128 transitions. [2023-11-23 20:32:44,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 20:32:44,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:44,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:44,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:32:44,030 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting dec_aErr1ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-23 20:32:44,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1368665846, now seen corresponding path program 1 times [2023-11-23 20:32:44,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:44,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989909361] [2023-11-23 20:32:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:44,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:32:44,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:32:44,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989909361] [2023-11-23 20:32:44,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989909361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:44,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:44,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:32:44,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79755737] [2023-11-23 20:32:44,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:44,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:32:44,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:32:44,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:32:44,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:44,150 INFO L87 Difference]: Start difference. First operand 1548 states and 4128 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:44,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:44,239 INFO L93 Difference]: Finished difference Result 1748 states and 4631 transitions. [2023-11-23 20:32:44,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:32:44,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2023-11-23 20:32:44,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:44,254 INFO L225 Difference]: With dead ends: 1748 [2023-11-23 20:32:44,254 INFO L226 Difference]: Without dead ends: 1738 [2023-11-23 20:32:44,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:44,264 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 41 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:44,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 204 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:32:44,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2023-11-23 20:32:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1426. [2023-11-23 20:32:44,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1419 states have (on average 2.638477801268499) internal successors, (3744), 1425 states have internal predecessors, (3744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:44,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 3744 transitions. [2023-11-23 20:32:44,344 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 3744 transitions. Word has length 62 [2023-11-23 20:32:44,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:44,345 INFO L495 AbstractCegarLoop]: Abstraction has 1426 states and 3744 transitions. [2023-11-23 20:32:44,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 3744 transitions. [2023-11-23 20:32:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 20:32:44,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:44,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:44,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:32:44,350 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-23 20:32:44,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1271443474, now seen corresponding path program 1 times [2023-11-23 20:32:44,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:44,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607876259] [2023-11-23 20:32:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:44,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:32:45,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:32:45,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607876259] [2023-11-23 20:32:45,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607876259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:45,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:45,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:32:45,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086852677] [2023-11-23 20:32:45,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:45,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:32:45,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:32:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:32:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:32:45,109 INFO L87 Difference]: Start difference. First operand 1426 states and 3744 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:45,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:45,244 INFO L93 Difference]: Finished difference Result 1304 states and 3392 transitions. [2023-11-23 20:32:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:32:45,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2023-11-23 20:32:45,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:45,256 INFO L225 Difference]: With dead ends: 1304 [2023-11-23 20:32:45,256 INFO L226 Difference]: Without dead ends: 1304 [2023-11-23 20:32:45,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:32:45,257 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 94 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:45,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 447 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:32:45,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2023-11-23 20:32:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1304. [2023-11-23 20:32:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1300 states have (on average 2.609230769230769) internal successors, (3392), 1303 states have internal predecessors, (3392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 3392 transitions. [2023-11-23 20:32:45,301 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 3392 transitions. Word has length 71 [2023-11-23 20:32:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:45,303 INFO L495 AbstractCegarLoop]: Abstraction has 1304 states and 3392 transitions. [2023-11-23 20:32:45,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:32:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 3392 transitions. [2023-11-23 20:32:45,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:32:45,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:45,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:45,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:32:45,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting dec_bErr0ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-23 20:32:45,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:45,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1313587955, now seen corresponding path program 1 times [2023-11-23 20:32:45,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:45,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525884410] [2023-11-23 20:32:45,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:45,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:32:45,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:32:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:32:45,486 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:32:45,489 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:32:45,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location dec_bErr0ASSERT_VIOLATIONDATA_RACE (34 of 35 remaining) [2023-11-23 20:32:45,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2023-11-23 20:32:45,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2023-11-23 20:32:45,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2023-11-23 20:32:45,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2023-11-23 20:32:45,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2023-11-23 20:32:45,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr5ASSERT_VIOLATIONDATA_RACE (28 of 35 remaining) [2023-11-23 20:32:45,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr6ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2023-11-23 20:32:45,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2023-11-23 20:32:45,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr1ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2023-11-23 20:32:45,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr2ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2023-11-23 20:32:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr3ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2023-11-23 20:32:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr4ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2023-11-23 20:32:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr5ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2023-11-23 20:32:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr6ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2023-11-23 20:32:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2023-11-23 20:32:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2023-11-23 20:32:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2023-11-23 20:32:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2023-11-23 20:32:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2023-11-23 20:32:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2023-11-23 20:32:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 35 remaining) [2023-11-23 20:32:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2023-11-23 20:32:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr1ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2023-11-23 20:32:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr2ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2023-11-23 20:32:45,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr3ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2023-11-23 20:32:45,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr4ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2023-11-23 20:32:45,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr5ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2023-11-23 20:32:45,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr6ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2023-11-23 20:32:45,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr1ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2023-11-23 20:32:45,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr2ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2023-11-23 20:32:45,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr3ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2023-11-23 20:32:45,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr4ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2023-11-23 20:32:45,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr5ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2023-11-23 20:32:45,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr6ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2023-11-23 20:32:45,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:32:45,509 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-23 20:32:45,519 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 20:32:45,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:32:45,566 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-23 20:32:45,566 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 20:32:45,568 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-23 20:32:45,569 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-23 20:32:45,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:32:45 BasicIcfg [2023-11-23 20:32:45,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:32:45,577 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:32:45,577 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:32:45,577 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:32:45,578 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:42" (3/4) ... [2023-11-23 20:32:45,579 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:32:45,580 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:32:45,581 INFO L158 Benchmark]: Toolchain (without parser) took 5248.43ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 147.9MB in the beginning and 79.5MB in the end (delta: 68.4MB). Peak memory consumption was 104.1MB. Max. memory is 16.1GB. [2023-11-23 20:32:45,581 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:32:45,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.21ms. Allocated memory is still 178.3MB. Free memory was 147.7MB in the beginning and 130.3MB in the end (delta: 17.4MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-11-23 20:32:45,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.12ms. Allocated memory is still 178.3MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:32:45,582 INFO L158 Benchmark]: Boogie Preprocessor took 44.45ms. Allocated memory is still 178.3MB. Free memory was 128.2MB in the beginning and 126.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:32:45,582 INFO L158 Benchmark]: RCFGBuilder took 1039.28ms. Allocated memory is still 178.3MB. Free memory was 126.1MB in the beginning and 136.3MB in the end (delta: -10.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 20:32:45,583 INFO L158 Benchmark]: TraceAbstraction took 3442.25ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 135.3MB in the beginning and 79.5MB in the end (delta: 55.8MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. [2023-11-23 20:32:45,583 INFO L158 Benchmark]: Witness Printer took 3.48ms. Allocated memory is still 213.9MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:32:45,585 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.21ms. Allocated memory is still 178.3MB. Free memory was 147.7MB in the beginning and 130.3MB in the end (delta: 17.4MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.12ms. Allocated memory is still 178.3MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.45ms. Allocated memory is still 178.3MB. Free memory was 128.2MB in the beginning and 126.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1039.28ms. Allocated memory is still 178.3MB. Free memory was 126.1MB in the beginning and 136.3MB in the end (delta: -10.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3442.25ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 135.3MB in the beginning and 79.5MB in the end (delta: 55.8MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. * Witness Printer took 3.48ms. Allocated memory is still 213.9MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 718]: Data race detected [2023-11-23 20:32:45,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-23 20:32:45,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 20:32:45,605 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-23 20:32:45,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-23 20:32:45,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-23 20:32:45,651 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 20:32:45,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-23 20:32:45,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated Data race detected The following path leads to a data race: [L695] 0 unsigned a, b; VAL [a=0, b=0] [L747] 0 unsigned a_in=__VERIFIER_nondet_uint(); VAL [a=0, a_in=2, b=0] [L748] 0 unsigned b_in=__VERIFIER_nondet_uint(); VAL [a=0, a_in=2, b=0, b_in=1] [L749] CALL 0 assume_abort_if_not(a_in>0) [L15] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a=0, b=0, cond=1] [L749] RET 0 assume_abort_if_not(a_in>0) [L750] CALL 0 assume_abort_if_not(b_in>0) [L15] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a=0, b=0, cond=1] [L750] RET 0 assume_abort_if_not(b_in>0) [L751] CALL 0 start(a_in, b_in) [L726] 0 a=a_in VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=0, b_in=1] [L727] 0 b=b_in VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=-4294967295, b_in=1] [L728] 0 pthread_t t1, t2; VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=-4294967295, b_in=1, t1={10:0}, t2={9:0}] [L729] FCALL, FORK 0 pthread_create(&t1, 0, dec_a, 0) VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=-4294967295, b_in=1, t1={10:0}, t2={9:0}] [L709] 1 a!=b VAL [a=-4294967294, arg={0:0}, arg={0:0}, b=-4294967295] [L709] 1 a!=b VAL [a=-4294967294, arg={0:0}, arg={0:0}, b=-4294967295] [L730] FCALL, FORK 0 pthread_create(&t2, 0, dec_b, 0) VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=-4294967295, b_in=1, t1={10:0}, t2={9:0}] [L718] 2 a!=b VAL [a=-4294967294, arg={0:0}, arg={0:0}, b=-4294967295] [L709] COND TRUE 1 a!=b VAL [a=-4294967294, arg={0:0}, arg={0:0}, b=-4294967295] [L711] CALL 1 __VERIFIER_atomic_dec_a() [L698] 1 a>b [L698] COND TRUE 1 a>b [L699] EXPR 1 a-b [L699] 1 a=a-b [L711] RET 1 __VERIFIER_atomic_dec_a() [L718] 2 a!=b VAL [a=1, arg={0:0}, arg={0:0}, b=-4294967295] Now there is a data race on ~a~0 between C: a=a-b [699] and C: a!=b [718] - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 241 locations, 35 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 1237 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 628 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 609 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3210occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 412 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 361 NumberOfCodeBlocks, 361 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:32:45,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b70aee4-b526-4a50-baea-d8a50ca6593f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE