./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7 --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 1abd6fb835489bc29b4b3171e6e4732aae8910bae019e148dd431ac2077bb570 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:04:32,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:04:32,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:04:32,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:04:32,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:04:32,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:04:32,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:04:32,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:04:32,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:04:32,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:04:32,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:04:32,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:04:32,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:04:32,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:04:32,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:04:32,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:04:32,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:04:32,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:04:32,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:04:32,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:04:32,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:04:32,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:04:32,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:04:32,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:04:32,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:04:32,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:04:32,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:04:32,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:04:32,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:04:32,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:04:32,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:04:32,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:04:32,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:04:32,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:04:32,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:04:32,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:04:32,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:04:32,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:04:32,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:04:32,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:04:32,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:04:32,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-25 19:04:32,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:04:32,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:04:32,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:04:32,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:04:32,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:04:32,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:04:32,165 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:04:32,165 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:04:32,165 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:04:32,166 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:04:32,167 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:04:32,167 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:04:32,167 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:04:32,167 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:04:32,168 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:04:32,168 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:04:32,168 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:04:32,168 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:04:32,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:04:32,169 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:04:32,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 19:04:32,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:04:32,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:04:32,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:04:32,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:04:32,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:04:32,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:04:32,172 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-25 19:04:32,173 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:04:32,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:04:32,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:04:32,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:04:32,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:04:32,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:04:32,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:04:32,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:04:32,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:04:32,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:04:32,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:04:32,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:04:32,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:04:32,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:04:32,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:04:32,176 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_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1abd6fb835489bc29b4b3171e6e4732aae8910bae019e148dd431ac2077bb570 [2021-11-25 19:04:32,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:04:32,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:04:32,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:04:32,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:04:32,466 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:04:32,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i [2021-11-25 19:04:32,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/data/9bd20bb69/8227446c44794842bc8a696c1b65dfab/FLAG2b78c1f35 [2021-11-25 19:04:33,116 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:04:33,116 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i [2021-11-25 19:04:33,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/data/9bd20bb69/8227446c44794842bc8a696c1b65dfab/FLAG2b78c1f35 [2021-11-25 19:04:33,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/data/9bd20bb69/8227446c44794842bc8a696c1b65dfab [2021-11-25 19:04:33,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:04:33,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:04:33,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:04:33,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:04:33,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:04:33,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:04:33" (1/1) ... [2021-11-25 19:04:33,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a4f112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:33, skipping insertion in model container [2021-11-25 19:04:33,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:04:33" (1/1) ... [2021-11-25 19:04:33,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:04:33,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:04:33,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:04:33,937 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:04:33,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:04:34,034 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:04:34,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34 WrapperNode [2021-11-25 19:04:34,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:04:34,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:04:34,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:04:34,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:04:34,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,104 INFO L137 Inliner]: procedures = 265, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2021-11-25 19:04:34,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:04:34,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:04:34,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:04:34,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:04:34,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:04:34,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:04:34,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:04:34,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:04:34,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (1/1) ... [2021-11-25 19:04:34,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:04:34,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:34,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:04:34,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:04:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:04:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:04:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:04:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:04:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-25 19:04:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:04:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-25 19:04:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-25 19:04:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:04:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:04:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:04:34,261 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 19:04:34,440 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:04:34,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:04:34,657 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:04:34,666 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:04:34,667 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:04:34,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:04:34 BoogieIcfgContainer [2021-11-25 19:04:34,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:04:34,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:04:34,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:04:34,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:04:34,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:04:33" (1/3) ... [2021-11-25 19:04:34,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412e6ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:04:34, skipping insertion in model container [2021-11-25 19:04:34,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:34" (2/3) ... [2021-11-25 19:04:34,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412e6ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:04:34, skipping insertion in model container [2021-11-25 19:04:34,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:04:34" (3/3) ... [2021-11-25 19:04:34,678 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_50-funptr_rc.i [2021-11-25 19:04:34,683 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 19:04:34,684 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:04:34,684 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 19:04:34,685 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 19:04:34,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,726 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,726 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,726 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,727 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,734 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,735 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:04:34,744 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-25 19:04:34,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:04:34,795 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 [2021-11-25 19:04:34,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-25 19:04:34,809 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 19:04:34,822 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 92 transitions, 192 flow [2021-11-25 19:04:34,825 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 92 transitions, 192 flow [2021-11-25 19:04:34,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 92 transitions, 192 flow [2021-11-25 19:04:34,866 INFO L129 PetriNetUnfolder]: 1/91 cut-off events. [2021-11-25 19:04:34,866 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-25 19:04:34,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 1/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-11-25 19:04:34,871 INFO L116 LiptonReduction]: Number of co-enabled transitions 1032 [2021-11-25 19:04:38,482 INFO L131 LiptonReduction]: Checked pairs total: 2181 [2021-11-25 19:04:38,482 INFO L133 LiptonReduction]: Total number of compositions: 82 [2021-11-25 19:04:38,490 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 19 transitions, 46 flow [2021-11-25 19:04:38,503 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 56 states, 51 states have (on average 2.0) internal successors, (102), 55 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:38,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 51 states have (on average 2.0) internal successors, (102), 55 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 19:04:38,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:38,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 19:04:38,512 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-25 19:04:38,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash 300004914, now seen corresponding path program 1 times [2021-11-25 19:04:38,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:38,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936156456] [2021-11-25 19:04:38,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:38,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:38,787 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:38,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936156456] [2021-11-25 19:04:38,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936156456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:38,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:38,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:04:38,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505159542] [2021-11-25 19:04:38,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:38,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:04:38,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:38,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:04:38,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:38,828 INFO L87 Difference]: Start difference. First operand has 56 states, 51 states have (on average 2.0) internal successors, (102), 55 states have internal predecessors, (102), 0 states have call successors, (0), 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 2.5) internal successors, (5), 3 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) [2021-11-25 19:04:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:38,922 INFO L93 Difference]: Finished difference Result 60 states and 107 transitions. [2021-11-25 19:04:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:38,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2021-11-25 19:04:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:38,935 INFO L225 Difference]: With dead ends: 60 [2021-11-25 19:04:38,935 INFO L226 Difference]: Without dead ends: 46 [2021-11-25 19:04:38,936 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 [2021-11-25 19:04:38,940 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:38,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:04:38,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-25 19:04:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2021-11-25 19:04:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.8918918918918919) internal successors, (70), 39 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 70 transitions. [2021-11-25 19:04:38,975 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 70 transitions. Word has length 5 [2021-11-25 19:04:38,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:38,976 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 70 transitions. [2021-11-25 19:04:38,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2021-11-25 19:04:38,976 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2021-11-25 19:04:38,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 19:04:38,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:38,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 19:04:38,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:04:38,977 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-25 19:04:38,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:38,978 INFO L85 PathProgramCache]: Analyzing trace with hash 710473286, now seen corresponding path program 1 times [2021-11-25 19:04:38,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:38,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121416053] [2021-11-25 19:04:38,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:38,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:39,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:39,025 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:39,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121416053] [2021-11-25 19:04:39,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121416053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:39,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:39,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:04:39,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504183788] [2021-11-25 19:04:39,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:39,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:04:39,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:39,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:04:39,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:39,029 INFO L87 Difference]: Start difference. First operand 40 states and 70 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:39,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:39,058 INFO L93 Difference]: Finished difference Result 39 states and 63 transitions. [2021-11-25 19:04:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:39,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-11-25 19:04:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:39,059 INFO L225 Difference]: With dead ends: 39 [2021-11-25 19:04:39,059 INFO L226 Difference]: Without dead ends: 27 [2021-11-25 19:04:39,060 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 [2021-11-25 19:04:39,061 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:39,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:04:39,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-25 19:04:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-25 19:04:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 38 transitions. [2021-11-25 19:04:39,067 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 38 transitions. Word has length 6 [2021-11-25 19:04:39,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:39,067 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 38 transitions. [2021-11-25 19:04:39,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-11-25 19:04:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:04:39,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:39,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:39,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:04:39,069 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-25 19:04:39,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash -134913648, now seen corresponding path program 1 times [2021-11-25 19:04:39,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:39,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774759016] [2021-11-25 19:04:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:39,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:04:39,099 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:04:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:04:39,134 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:04:39,134 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:04:39,135 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2021-11-25 19:04:39,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2021-11-25 19:04:39,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2021-11-25 19:04:39,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 5 remaining) [2021-11-25 19:04:39,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2021-11-25 19:04:39,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:04:39,141 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-25 19:04:39,145 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 19:04:39,145 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:04:39,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:04:39 BasicIcfg [2021-11-25 19:04:39,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:04:39,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:04:39,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:04:39,170 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:04:39,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:04:34" (3/4) ... [2021-11-25 19:04:39,173 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 19:04:39,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:04:39,174 INFO L158 Benchmark]: Toolchain (without parser) took 5780.25ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 78.1MB in the beginning and 94.1MB in the end (delta: -16.0MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2021-11-25 19:04:39,174 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 91.1MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:04:39,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.12ms. Allocated memory is still 115.3MB. Free memory was 77.7MB in the beginning and 74.8MB in the end (delta: 3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 19:04:39,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.76ms. Allocated memory is still 115.3MB. Free memory was 74.8MB in the beginning and 71.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:04:39,176 INFO L158 Benchmark]: Boogie Preprocessor took 58.47ms. Allocated memory is still 115.3MB. Free memory was 71.8MB in the beginning and 70.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:04:39,177 INFO L158 Benchmark]: RCFGBuilder took 502.83ms. Allocated memory is still 115.3MB. Free memory was 70.6MB in the beginning and 58.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 19:04:39,177 INFO L158 Benchmark]: TraceAbstraction took 4498.12ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 57.4MB in the beginning and 95.1MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:04:39,178 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 138.4MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:04:39,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 91.1MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.12ms. Allocated memory is still 115.3MB. Free memory was 77.7MB in the beginning and 74.8MB in the end (delta: 3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.76ms. Allocated memory is still 115.3MB. Free memory was 74.8MB in the beginning and 71.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.47ms. Allocated memory is still 115.3MB. Free memory was 71.8MB in the beginning and 70.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 502.83ms. Allocated memory is still 115.3MB. Free memory was 70.6MB in the beginning and 58.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4498.12ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 57.4MB in the beginning and 95.1MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.65ms. Allocated memory is still 138.4MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 95 PlacesBefore, 22 PlacesAfterwards, 92 TransitionsBefore, 19 TransitionsAfterwards, 1032 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 82 TotalNumberOfCompositions, 2181 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1550, positive: 1421, positive conditional: 0, positive unconditional: 1421, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 832, positive: 795, positive conditional: 0, positive unconditional: 795, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 832, positive: 785, positive conditional: 0, positive unconditional: 785, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 155, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1550, positive: 626, positive conditional: 0, positive unconditional: 626, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 832, unknown conditional: 0, unknown unconditional: 832] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - 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: 924]: Data race detected Data race detected The following path leads to a data race: [L919] 0 int (*fp)() = f1; [L920] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L921] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_t id; [L930] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [={-1:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L924] 1 fp = f2 VAL [={-1:1}, arg={0:0}, arg={0:0}, fp = f2=25, mutex1={1:0}, mutex2={2:0}] [L924] 1 fp = f2 VAL [={-1:1}, arg={0:0}, arg={0:0}, fp = f2=25, mutex1={1:0}, mutex2={2:0}] Now there is a data race on ~fp~0 between C: fp() [932] and C: fp = f2 [924] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2021-11-25 19:04:39,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d1465c-1775-4052-b989-0bd4b0f38cc8/bin/utaipan-eEHZpOm5b7/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