./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh --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 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:04:40,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:04:40,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:04:40,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:04:40,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:04:40,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:04:40,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:04:40,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:04:40,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:04:40,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:04:40,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:04:40,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:04:40,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:04:40,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:04:40,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:04:40,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:04:40,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:04:40,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:04:40,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:04:40,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:04:40,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:04:40,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:04:40,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:04:40,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:04:40,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:04:40,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:04:40,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:04:40,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:04:40,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:04:40,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:04:40,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:04:40,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:04:40,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:04:40,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:04:40,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:04:40,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:04:40,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:04:40,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:04:40,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:04:40,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:04:40,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:04:40,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 09:04:40,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:04:40,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:04:40,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:04:40,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:04:40,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:04:40,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:04:40,969 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:04:40,969 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:04:40,969 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:04:40,969 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:04:40,969 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:04:40,969 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:04:40,969 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:04:40,970 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:04:40,970 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:04:40,970 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:04:40,970 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:04:40,970 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:04:40,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:04:40,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:04:40,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:04:40,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:04:40,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:04:40,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:04:40,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:04:40,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:04:40,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:04:40,972 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 09:04:40,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:04:40,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:04:40,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:04:40,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:04:40,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:04:40,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:04:40,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:04:40,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:04:40,973 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:04:40,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:04:40,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:04:40,973 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:04:40,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:04:40,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:04:40,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:04:40,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 [2022-12-14 09:04:41,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:04:41,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:04:41,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:04:41,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:04:41,205 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:04:41,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i [2022-12-14 09:04:43,878 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:04:44,039 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:04:44,039 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i [2022-12-14 09:04:44,048 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/data/0cc5822fc/9d88a2b8243742bf8f7636ddd3700012/FLAG02a9da463 [2022-12-14 09:04:44,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/data/0cc5822fc/9d88a2b8243742bf8f7636ddd3700012 [2022-12-14 09:04:44,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:04:44,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:04:44,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:04:44,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:04:44,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:04:44,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48bf72e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44, skipping insertion in model container [2022-12-14 09:04:44,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:04:44,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:04:44,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:04:44,446 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:04:44,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:04:44,505 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:04:44,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44 WrapperNode [2022-12-14 09:04:44,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:04:44,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:04:44,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:04:44,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:04:44,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,538 INFO L138 Inliner]: procedures = 264, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-12-14 09:04:44,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:04:44,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:04:44,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:04:44,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:04:44,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,555 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:04:44,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:04:44,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:04:44,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:04:44,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (1/1) ... [2022-12-14 09:04:44,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:04:44,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:04:44,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:04:44,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:04:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:04:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:04:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:04:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:04:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 09:04:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:04:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 09:04:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 09:04:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:04:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:04:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:04:44,621 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 09:04:44,716 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:04:44,719 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:04:44,854 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:04:44,859 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:04:44,860 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:04:44,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:44 BoogieIcfgContainer [2022-12-14 09:04:44,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:04:44,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:04:44,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:04:44,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:04:44,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:04:44" (1/3) ... [2022-12-14 09:04:44,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2083c128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:44, skipping insertion in model container [2022-12-14 09:04:44,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:44" (2/3) ... [2022-12-14 09:04:44,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2083c128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:44, skipping insertion in model container [2022-12-14 09:04:44,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:44" (3/3) ... [2022-12-14 09:04:44,868 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_08-nonterm1.i [2022-12-14 09:04:44,874 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 09:04:44,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:04:44,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 09:04:44,882 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:04:44,930 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 09:04:44,953 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:04:44,963 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 101 transitions, 210 flow [2022-12-14 09:04:44,965 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 101 transitions, 210 flow [2022-12-14 09:04:44,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 210 flow [2022-12-14 09:04:44,998 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2022-12-14 09:04:44,998 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 09:04:45,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 2/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-12-14 09:04:45,003 INFO L119 LiptonReduction]: Number of co-enabled transitions 1638 [2022-12-14 09:04:46,726 INFO L134 LiptonReduction]: Checked pairs total: 6386 [2022-12-14 09:04:46,726 INFO L136 LiptonReduction]: Total number of compositions: 78 [2022-12-14 09:04:46,732 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 33 transitions, 74 flow [2022-12-14 09:04:46,754 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 184 states, 164 states have (on average 2.1097560975609757) internal successors, (346), 183 states have internal predecessors, (346), 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) [2022-12-14 09:04:46,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:04:46,776 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fe464d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:04:46,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-14 09:04:46,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 164 states have (on average 2.1097560975609757) internal successors, (346), 183 states have internal predecessors, (346), 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) [2022-12-14 09:04:46,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 09:04:46,781 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:46,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 09:04:46,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 09:04:46,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:46,786 INFO L85 PathProgramCache]: Analyzing trace with hash 352149, now seen corresponding path program 1 times [2022-12-14 09:04:46,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:46,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600719112] [2022-12-14 09:04:46,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:46,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:46,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:46,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:46,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600719112] [2022-12-14 09:04:46,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600719112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:46,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:46,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:04:46,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318522026] [2022-12-14 09:04:46,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:46,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:04:46,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:46,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:04:46,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:04:46,955 INFO L87 Difference]: Start difference. First operand has 184 states, 164 states have (on average 2.1097560975609757) internal successors, (346), 183 states have internal predecessors, (346), 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) [2022-12-14 09:04:46,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:46,991 INFO L93 Difference]: Finished difference Result 155 states and 291 transitions. [2022-12-14 09:04:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:04:46,993 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 [2022-12-14 09:04:46,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:46,999 INFO L225 Difference]: With dead ends: 155 [2022-12-14 09:04:47,000 INFO L226 Difference]: Without dead ends: 151 [2022-12-14 09:04:47,000 INFO L412 NwaCegarLoop]: 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 [2022-12-14 09:04:47,002 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:47,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:47,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-12-14 09:04:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-12-14 09:04:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 139 states have (on average 2.0215827338129495) internal successors, (281), 150 states have internal predecessors, (281), 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) [2022-12-14 09:04:47,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 281 transitions. [2022-12-14 09:04:47,036 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 281 transitions. Word has length 3 [2022-12-14 09:04:47,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:47,037 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 281 transitions. [2022-12-14 09:04:47,037 INFO L496 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) [2022-12-14 09:04:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 281 transitions. [2022-12-14 09:04:47,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:04:47,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:47,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:04:47,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:04:47,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 09:04:47,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:47,038 INFO L85 PathProgramCache]: Analyzing trace with hash 338361402, now seen corresponding path program 1 times [2022-12-14 09:04:47,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:47,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371504975] [2022-12-14 09:04:47,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:47,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:47,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:47,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371504975] [2022-12-14 09:04:47,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371504975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:47,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:47,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:04:47,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478034190] [2022-12-14 09:04:47,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:47,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:47,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:47,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:47,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,090 INFO L87 Difference]: Start difference. First operand 151 states and 281 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) [2022-12-14 09:04:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:47,137 INFO L93 Difference]: Finished difference Result 171 states and 315 transitions. [2022-12-14 09:04:47,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:47,137 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 [2022-12-14 09:04:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:47,140 INFO L225 Difference]: With dead ends: 171 [2022-12-14 09:04:47,140 INFO L226 Difference]: Without dead ends: 171 [2022-12-14 09:04:47,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,142 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:47,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 14 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:47,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-12-14 09:04:47,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-12-14 09:04:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 144 states have (on average 1.9652777777777777) internal successors, (283), 153 states have internal predecessors, (283), 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) [2022-12-14 09:04:47,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 283 transitions. [2022-12-14 09:04:47,156 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 283 transitions. Word has length 5 [2022-12-14 09:04:47,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:47,156 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 283 transitions. [2022-12-14 09:04:47,156 INFO L496 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) [2022-12-14 09:04:47,156 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 283 transitions. [2022-12-14 09:04:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:04:47,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:47,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:47,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:04:47,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 09:04:47,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1252124246, now seen corresponding path program 1 times [2022-12-14 09:04:47,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:47,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667444457] [2022-12-14 09:04:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:47,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:47,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:47,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667444457] [2022-12-14 09:04:47,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667444457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:47,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:47,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:04:47,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486363487] [2022-12-14 09:04:47,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:47,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:47,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:47,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:47,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,209 INFO L87 Difference]: Start difference. First operand 154 states and 283 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) [2022-12-14 09:04:47,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:47,238 INFO L93 Difference]: Finished difference Result 155 states and 284 transitions. [2022-12-14 09:04:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:47,238 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 [2022-12-14 09:04:47,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:47,240 INFO L225 Difference]: With dead ends: 155 [2022-12-14 09:04:47,240 INFO L226 Difference]: Without dead ends: 155 [2022-12-14 09:04:47,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,241 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:47,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:47,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-12-14 09:04:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-12-14 09:04:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 146 states have (on average 1.9452054794520548) internal successors, (284), 154 states have internal predecessors, (284), 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) [2022-12-14 09:04:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 284 transitions. [2022-12-14 09:04:47,249 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 284 transitions. Word has length 7 [2022-12-14 09:04:47,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:47,249 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 284 transitions. [2022-12-14 09:04:47,249 INFO L496 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) [2022-12-14 09:04:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 284 transitions. [2022-12-14 09:04:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:04:47,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:47,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:47,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:04:47,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 09:04:47,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:47,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1217834282, now seen corresponding path program 1 times [2022-12-14 09:04:47,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:47,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519610149] [2022-12-14 09:04:47,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:47,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:47,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:47,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519610149] [2022-12-14 09:04:47,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519610149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:47,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:47,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:04:47,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037707806] [2022-12-14 09:04:47,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:47,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:47,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:47,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:47,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,284 INFO L87 Difference]: Start difference. First operand 155 states and 284 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) [2022-12-14 09:04:47,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:47,322 INFO L93 Difference]: Finished difference Result 166 states and 303 transitions. [2022-12-14 09:04:47,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:47,323 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 [2022-12-14 09:04:47,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:47,323 INFO L225 Difference]: With dead ends: 166 [2022-12-14 09:04:47,324 INFO L226 Difference]: Without dead ends: 156 [2022-12-14 09:04:47,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,324 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:47,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 13 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:47,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-12-14 09:04:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2022-12-14 09:04:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.85) internal successors, (259), 145 states have internal predecessors, (259), 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) [2022-12-14 09:04:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 259 transitions. [2022-12-14 09:04:47,333 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 259 transitions. Word has length 7 [2022-12-14 09:04:47,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:47,333 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 259 transitions. [2022-12-14 09:04:47,333 INFO L496 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) [2022-12-14 09:04:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 259 transitions. [2022-12-14 09:04:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:04:47,334 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:47,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:47,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:04:47,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 09:04:47,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash -700469886, now seen corresponding path program 1 times [2022-12-14 09:04:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:47,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465736196] [2022-12-14 09:04:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:47,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:47,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:47,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:47,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465736196] [2022-12-14 09:04:47,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465736196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:47,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:47,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:47,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398817450] [2022-12-14 09:04:47,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:47,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:47,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:47,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:47,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,424 INFO L87 Difference]: Start difference. First operand 146 states and 259 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:47,448 INFO L93 Difference]: Finished difference Result 86 states and 135 transitions. [2022-12-14 09:04:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:47,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 09:04:47,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:47,449 INFO L225 Difference]: With dead ends: 86 [2022-12-14 09:04:47,449 INFO L226 Difference]: Without dead ends: 86 [2022-12-14 09:04:47,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,450 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:47,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:47,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-14 09:04:47,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-12-14 09:04:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.646341463414634) internal successors, (135), 85 states have internal predecessors, (135), 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) [2022-12-14 09:04:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 135 transitions. [2022-12-14 09:04:47,455 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 135 transitions. Word has length 9 [2022-12-14 09:04:47,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:47,455 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 135 transitions. [2022-12-14 09:04:47,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 135 transitions. [2022-12-14 09:04:47,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:04:47,456 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:47,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:47,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:04:47,456 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 09:04:47,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:47,457 INFO L85 PathProgramCache]: Analyzing trace with hash -667583059, now seen corresponding path program 1 times [2022-12-14 09:04:47,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:47,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625276655] [2022-12-14 09:04:47,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:47,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:47,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:47,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625276655] [2022-12-14 09:04:47,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625276655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:47,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:47,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:04:47,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248956567] [2022-12-14 09:04:47,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:47,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:47,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:47,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:47,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,492 INFO L87 Difference]: Start difference. First operand 86 states and 135 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 09:04:47,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:47,520 INFO L93 Difference]: Finished difference Result 83 states and 125 transitions. [2022-12-14 09:04:47,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:47,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-12-14 09:04:47,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:47,521 INFO L225 Difference]: With dead ends: 83 [2022-12-14 09:04:47,521 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 09:04:47,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,522 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:47,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 09:04:47,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-12-14 09:04:47,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 61 states have internal predecessors, (92), 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) [2022-12-14 09:04:47,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2022-12-14 09:04:47,526 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 13 [2022-12-14 09:04:47,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:47,526 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2022-12-14 09:04:47,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 09:04:47,526 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2022-12-14 09:04:47,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:04:47,527 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:47,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:47,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:04:47,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 09:04:47,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:47,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1597121275, now seen corresponding path program 1 times [2022-12-14 09:04:47,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:47,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660129095] [2022-12-14 09:04:47,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:47,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:47,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:04:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:47,571 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:04:47,571 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:04:47,572 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2022-12-14 09:04:47,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2022-12-14 09:04:47,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2022-12-14 09:04:47,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:04:47,576 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:47,580 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 09:04:47,580 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:04:47,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:04:47 BasicIcfg [2022-12-14 09:04:47,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:04:47,599 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:04:47,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:04:47,599 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:04:47,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:44" (3/4) ... [2022-12-14 09:04:47,602 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:04:47,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:04:47,602 INFO L158 Benchmark]: Toolchain (without parser) took 3540.57ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 113.0MB in the beginning and 114.6MB in the end (delta: -1.6MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-12-14 09:04:47,602 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 151.0MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:04:47,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.14ms. Allocated memory is still 151.0MB. Free memory was 112.5MB in the beginning and 85.1MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 09:04:47,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.99ms. Allocated memory is still 151.0MB. Free memory was 85.1MB in the beginning and 82.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:04:47,603 INFO L158 Benchmark]: Boogie Preprocessor took 18.75ms. Allocated memory is still 151.0MB. Free memory was 82.6MB in the beginning and 81.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:04:47,603 INFO L158 Benchmark]: RCFGBuilder took 303.61ms. Allocated memory is still 151.0MB. Free memory was 81.0MB in the beginning and 66.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 09:04:47,603 INFO L158 Benchmark]: TraceAbstraction took 2735.79ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 66.4MB in the beginning and 114.6MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:04:47,603 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 182.5MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:04:47,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 151.0MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.14ms. Allocated memory is still 151.0MB. Free memory was 112.5MB in the beginning and 85.1MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.99ms. Allocated memory is still 151.0MB. Free memory was 85.1MB in the beginning and 82.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.75ms. Allocated memory is still 151.0MB. Free memory was 82.6MB in the beginning and 81.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.61ms. Allocated memory is still 151.0MB. Free memory was 81.0MB in the beginning and 66.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2735.79ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 66.4MB in the beginning and 114.6MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 182.5MB. Free memory is still 114.6MB. 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: 1.8s, 103 PlacesBefore, 36 PlacesAfterwards, 101 TransitionsBefore, 33 TransitionsAfterwards, 1638 CoEnabledTransitionPairs, 9 FixpointIterations, 37 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 78 TotalNumberOfCompositions, 6386 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2701, independent: 2297, independent conditional: 0, independent unconditional: 2297, dependent: 404, dependent conditional: 0, dependent unconditional: 404, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1167, independent: 1108, independent conditional: 0, independent unconditional: 1108, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1167, independent: 1018, independent conditional: 0, independent unconditional: 1018, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 149, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 150, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2701, independent: 1189, independent conditional: 0, independent unconditional: 1189, dependent: 345, dependent conditional: 0, dependent unconditional: 345, unknown: 1167, unknown conditional: 0, unknown unconditional: 1167] , Statistics on independence cache: Total cache size (in pairs): 163, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: [L918] 0 int myglobal; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L936] 0 pthread_t id; [L937] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L930] EXPR 1 myglobal+1 [L930] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L932] CALL 1 fun() [L922] 1 int i = __VERIFIER_nondet_int(); [L924] EXPR 1 myglobal+1 [L924] 1 myglobal=myglobal+1 VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=2, myglobal=myglobal+1=26] [L939] 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=2] [L924] 1 myglobal=myglobal+1 VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=2, myglobal=myglobal+1=26] Now there is a data race on ~myglobal~0 between C: myglobal+1 [939] and C: myglobal=myglobal+1 [924] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 937]: 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: 930]: 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 there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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, 139 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 65 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 09:04:47,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f68826-15bf-41f0-9f3f-3bf63fe38204/bin/utaipan-gh47qXpMRh/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