./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:51:15,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:51:15,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:51:16,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:51:16,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:51:16,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:51:16,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:51:16,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:51:16,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:51:16,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:51:16,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:51:16,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:51:16,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:51:16,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:51:16,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:51:16,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:51:16,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:51:16,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:51:16,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:51:16,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:51:16,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:51:16,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:51:16,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:51:16,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:51:16,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:51:16,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:51:16,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:51:16,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:51:16,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:51:16,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:51:16,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:51:16,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:51:16,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:51:16,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:51:16,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:51:16,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:51:16,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:51:16,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:51:16,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:51:16,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:51:16,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:51:16,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-21 00:51:16,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:51:16,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:51:16,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:51:16,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:51:16,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:51:16,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:51:16,137 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:51:16,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:51:16,137 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:51:16,137 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:51:16,139 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:51:16,139 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:51:16,139 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:51:16,139 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:51:16,140 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:51:16,140 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:51:16,140 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:51:16,140 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:51:16,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:51:16,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:51:16,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:51:16,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:51:16,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:51:16,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:51:16,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:51:16,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:51:16,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:51:16,145 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-21 00:51:16,145 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:51:16,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:51:16,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:51:16,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:51:16,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:51:16,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:51:16,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:51:16,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:51:16,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:51:16,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:51:16,149 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:51:16,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:51:16,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:51:16,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:51:16,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:51:16,150 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_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 [2021-11-21 00:51:16,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:51:16,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:51:16,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:51:16,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:51:16,437 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:51:16,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i [2021-11-21 00:51:16,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/data/0fd3c343f/19715535d5f141cca772c3b7892c4583/FLAG9603168b0 [2021-11-21 00:51:17,119 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:51:17,119 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i [2021-11-21 00:51:17,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/data/0fd3c343f/19715535d5f141cca772c3b7892c4583/FLAG9603168b0 [2021-11-21 00:51:17,373 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/data/0fd3c343f/19715535d5f141cca772c3b7892c4583 [2021-11-21 00:51:17,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:51:17,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:51:17,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:51:17,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:51:17,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:51:17,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:51:17" (1/1) ... [2021-11-21 00:51:17,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e41418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:17, skipping insertion in model container [2021-11-21 00:51:17,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:51:17" (1/1) ... [2021-11-21 00:51:17,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:51:17,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:51:18,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:51:18,059 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:51:18,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:51:18,210 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:51:18,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18 WrapperNode [2021-11-21 00:51:18,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:51:18,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:51:18,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:51:18,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:51:18,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,283 INFO L137 Inliner]: procedures = 262, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2021-11-21 00:51:18,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:51:18,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:51:18,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:51:18,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:51:18,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:51:18,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:51:18,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:51:18,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:51:18,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (1/1) ... [2021-11-21 00:51:18,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:51:18,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:51:18,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:51:18,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:51:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:51:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:51:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:51:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:51:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-21 00:51:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:51:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-21 00:51:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-21 00:51:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:51:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:51:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:51:18,430 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-21 00:51:18,601 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:51:18,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:51:18,807 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:51:18,813 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:51:18,814 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 00:51:18,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:51:18 BoogieIcfgContainer [2021-11-21 00:51:18,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:51:18,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:51:18,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:51:18,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:51:18,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:51:17" (1/3) ... [2021-11-21 00:51:18,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9e643a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:51:18, skipping insertion in model container [2021-11-21 00:51:18,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:18" (2/3) ... [2021-11-21 00:51:18,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9e643a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:51:18, skipping insertion in model container [2021-11-21 00:51:18,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:51:18" (3/3) ... [2021-11-21 00:51:18,824 INFO L111 eAbstractionObserver]: Analyzing ICFG 03-practical_07-nonterm.i [2021-11-21 00:51:18,829 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-21 00:51:18,829 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:51:18,829 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-21 00:51:18,830 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-21 00:51:18,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,859 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,859 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,860 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,860 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,869 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,869 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:51:18,874 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-21 00:51:18,931 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:51:18,943 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 [2021-11-21 00:51:18,943 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-21 00:51:18,974 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-21 00:51:18,986 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 176 flow [2021-11-21 00:51:18,989 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 176 flow [2021-11-21 00:51:18,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 176 flow [2021-11-21 00:51:19,041 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-11-21 00:51:19,041 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-21 00:51:19,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 83 events. 2/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2021-11-21 00:51:19,047 INFO L116 LiptonReduction]: Number of co-enabled transitions 840 [2021-11-21 00:51:21,857 INFO L131 LiptonReduction]: Checked pairs total: 3496 [2021-11-21 00:51:21,858 INFO L133 LiptonReduction]: Total number of compositions: 72 [2021-11-21 00:51:21,866 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 25 transitions, 58 flow [2021-11-21 00:51:21,885 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 104 states, 92 states have (on average 2.108695652173913) internal successors, (194), 103 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:21,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 92 states have (on average 2.108695652173913) internal successors, (194), 103 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:21,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:51:21,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:51:21,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:51:21,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-21 00:51:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:51:21,897 INFO L85 PathProgramCache]: Analyzing trace with hash 293748, now seen corresponding path program 1 times [2021-11-21 00:51:21,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:51:21,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062291037] [2021-11-21 00:51:21,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:51:21,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:51:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:51:22,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:51:22,049 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:51:22,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062291037] [2021-11-21 00:51:22,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062291037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:51:22,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:51:22,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:51:22,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263206638] [2021-11-21 00:51:22,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:51:22,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:51:22,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:51:22,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:51:22,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:51:22,080 INFO L87 Difference]: Start difference. First operand has 104 states, 92 states have (on average 2.108695652173913) internal successors, (194), 103 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:51:22,124 INFO L93 Difference]: Finished difference Result 83 states and 155 transitions. [2021-11-21 00:51:22,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:51:22,127 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-11-21 00:51:22,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:51:22,137 INFO L225 Difference]: With dead ends: 83 [2021-11-21 00:51:22,137 INFO L226 Difference]: Without dead ends: 79 [2021-11-21 00:51:22,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:51:22,143 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:51:22,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:51:22,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-21 00:51:22,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-21 00:51:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 73 states have (on average 1.9863013698630136) internal successors, (145), 78 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 145 transitions. [2021-11-21 00:51:22,192 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 145 transitions. Word has length 3 [2021-11-21 00:51:22,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:51:22,192 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 145 transitions. [2021-11-21 00:51:22,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,193 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 145 transitions. [2021-11-21 00:51:22,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 00:51:22,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:51:22,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 00:51:22,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:51:22,194 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-21 00:51:22,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:51:22,195 INFO L85 PathProgramCache]: Analyzing trace with hash 282276447, now seen corresponding path program 1 times [2021-11-21 00:51:22,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:51:22,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881531805] [2021-11-21 00:51:22,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:51:22,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:51:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:51:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:51:22,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:51:22,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881531805] [2021-11-21 00:51:22,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881531805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:51:22,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:51:22,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:51:22,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088766934] [2021-11-21 00:51:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:51:22,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:51:22,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:51:22,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:51:22,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:51:22,275 INFO L87 Difference]: Start difference. First operand 79 states and 145 transitions. 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) [2021-11-21 00:51:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:51:22,330 INFO L93 Difference]: Finished difference Result 86 states and 157 transitions. [2021-11-21 00:51:22,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:51:22,331 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 [2021-11-21 00:51:22,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:51:22,333 INFO L225 Difference]: With dead ends: 86 [2021-11-21 00:51:22,335 INFO L226 Difference]: Without dead ends: 86 [2021-11-21 00:51:22,335 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 [2021-11-21 00:51:22,337 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:51:22,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 10 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:51:22,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-21 00:51:22,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 78. [2021-11-21 00:51:22,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 73 states have (on average 1.9452054794520548) internal successors, (142), 77 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 142 transitions. [2021-11-21 00:51:22,359 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 142 transitions. Word has length 5 [2021-11-21 00:51:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:51:22,360 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 142 transitions. [2021-11-21 00:51:22,360 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) [2021-11-21 00:51:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 142 transitions. [2021-11-21 00:51:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 00:51:22,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:51:22,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:51:22,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:51:22,361 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-21 00:51:22,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:51:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash 684776294, now seen corresponding path program 1 times [2021-11-21 00:51:22,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:51:22,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843803806] [2021-11-21 00:51:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:51:22,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:51:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:51:22,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:51:22,438 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:51:22,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843803806] [2021-11-21 00:51:22,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843803806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:51:22,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:51:22,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:51:22,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517424185] [2021-11-21 00:51:22,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:51:22,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:51:22,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:51:22,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:51:22,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:51:22,441 INFO L87 Difference]: Start difference. First operand 78 states and 142 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:51:22,474 INFO L93 Difference]: Finished difference Result 79 states and 141 transitions. [2021-11-21 00:51:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:51:22,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-11-21 00:51:22,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:51:22,476 INFO L225 Difference]: With dead ends: 79 [2021-11-21 00:51:22,476 INFO L226 Difference]: Without dead ends: 69 [2021-11-21 00:51:22,476 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 [2021-11-21 00:51:22,477 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:51:22,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:51:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-21 00:51:22,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-21 00:51:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.8615384615384616) internal successors, (121), 68 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 121 transitions. [2021-11-21 00:51:22,486 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 121 transitions. Word has length 7 [2021-11-21 00:51:22,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:51:22,487 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 121 transitions. [2021-11-21 00:51:22,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,487 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 121 transitions. [2021-11-21 00:51:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 00:51:22,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:51:22,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:51:22,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:51:22,488 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-21 00:51:22,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:51:22,489 INFO L85 PathProgramCache]: Analyzing trace with hash 675331081, now seen corresponding path program 1 times [2021-11-21 00:51:22,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:51:22,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899293983] [2021-11-21 00:51:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:51:22,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:51:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:51:22,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:51:22,524 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:51:22,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899293983] [2021-11-21 00:51:22,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899293983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:51:22,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:51:22,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:51:22,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092078413] [2021-11-21 00:51:22,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:51:22,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:51:22,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:51:22,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:51:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:51:22,526 INFO L87 Difference]: Start difference. First operand 69 states and 121 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:51:22,565 INFO L93 Difference]: Finished difference Result 66 states and 112 transitions. [2021-11-21 00:51:22,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:51:22,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-11-21 00:51:22,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:51:22,567 INFO L225 Difference]: With dead ends: 66 [2021-11-21 00:51:22,567 INFO L226 Difference]: Without dead ends: 56 [2021-11-21 00:51:22,568 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 [2021-11-21 00:51:22,569 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:51:22,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 9 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:51:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-21 00:51:22,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-21 00:51:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.5925925925925926) internal successors, (86), 55 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 86 transitions. [2021-11-21 00:51:22,580 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 86 transitions. Word has length 7 [2021-11-21 00:51:22,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:51:22,581 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-11-21 00:51:22,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:51:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 86 transitions. [2021-11-21 00:51:22,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:51:22,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:51:22,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:51:22,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:51:22,582 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-21 00:51:22,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:51:22,582 INFO L85 PathProgramCache]: Analyzing trace with hash 940078790, now seen corresponding path program 1 times [2021-11-21 00:51:22,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:51:22,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180887534] [2021-11-21 00:51:22,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:51:22,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:51:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:51:22,606 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 00:51:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:51:22,653 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 00:51:22,653 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 00:51:22,654 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2021-11-21 00:51:22,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2021-11-21 00:51:22,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2021-11-21 00:51:22,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2021-11-21 00:51:22,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2021-11-21 00:51:22,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 9 remaining) [2021-11-21 00:51:22,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2021-11-21 00:51:22,658 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2021-11-21 00:51:22,658 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2021-11-21 00:51:22,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:51:22,660 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-21 00:51:22,665 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-21 00:51:22,665 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:51:22,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:51:22 BasicIcfg [2021-11-21 00:51:22,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:51:22,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:51:22,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:51:22,706 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:51:22,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:51:18" (3/4) ... [2021-11-21 00:51:22,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 00:51:22,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:51:22,713 INFO L158 Benchmark]: Toolchain (without parser) took 5325.45ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 75.7MB in the beginning and 59.5MB in the end (delta: 16.2MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2021-11-21 00:51:22,714 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 93.9MB in the end (delta: 69.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:51:22,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.96ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 71.6MB in the end (delta: 3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:51:22,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.25ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 69.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:51:22,722 INFO L158 Benchmark]: Boogie Preprocessor took 50.26ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 68.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:51:22,722 INFO L158 Benchmark]: RCFGBuilder took 479.75ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 55.5MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-21 00:51:22,723 INFO L158 Benchmark]: TraceAbstraction took 3887.20ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 55.1MB in the beginning and 60.5MB in the end (delta: -5.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2021-11-21 00:51:22,723 INFO L158 Benchmark]: Witness Printer took 3.71ms. Allocated memory is still 142.6MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:51:22,725 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 93.9MB in the end (delta: 69.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.96ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 71.6MB in the end (delta: 3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.25ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 69.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.26ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 68.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.75ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 55.5MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3887.20ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 55.1MB in the beginning and 60.5MB in the end (delta: -5.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * Witness Printer took 3.71ms. Allocated memory is still 142.6MB. Free memory is still 59.5MB. 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: 2.9s, 86 PlacesBefore, 28 PlacesAfterwards, 84 TransitionsBefore, 25 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 9 FixpointIterations, 39 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 3496 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1710, positive: 1442, positive conditional: 0, positive unconditional: 1442, negative: 268, negative conditional: 0, negative unconditional: 268, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 621, positive: 586, positive conditional: 0, positive unconditional: 586, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 621, positive: 540, positive conditional: 0, positive unconditional: 540, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 130, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1710, positive: 856, positive conditional: 0, positive unconditional: 856, negative: 233, negative conditional: 0, negative unconditional: 233, unknown: 621, unknown conditional: 0, unknown unconditional: 621] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - 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: 922]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L928] 0 pthread_t id; [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, mutex1={3:0}, mutex2={4:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L922] EXPR 1 myglobal+1 [L922] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={4:0}, myglobal=1, myglobal=myglobal+1=25] [L931] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, id={5:0}, mutex1={3:0}, mutex2={4:0}, myglobal=1, myglobal=myglobal+1=25] [L922] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={4:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal+1 [931] and C: myglobal=myglobal+1 [922] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: 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: 929]: 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. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 32 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2021-11-21 00:51:22,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9ab3c1-a6ad-450a-83d1-493e967c2fc2/bin/utaipan-TEXQjIfE4P/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