./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI --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 91e4ed4bfe1f39ec65b13c41c6a7b6461aa954e8b5b654b0aa1c967848462a4b --- 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-5e519f3 [2022-11-03 03:31:56,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:31:56,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:31:56,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:31:56,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:31:56,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:31:56,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:31:56,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:31:56,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:31:56,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:31:56,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:31:56,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:31:56,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:31:56,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:31:56,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:31:56,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:31:56,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:31:56,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:31:56,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:31:56,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:31:56,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:31:56,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:31:56,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:31:56,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:31:56,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:31:56,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:31:56,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:31:56,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:31:56,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:31:56,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:31:56,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:31:56,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:31:56,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:31:56,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:31:56,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:31:56,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:31:56,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:31:56,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:31:56,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:31:56,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:31:56,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:31:56,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 03:31:56,231 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:31:56,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:31:56,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:31:56,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:31:56,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:31:56,233 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:31:56,233 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:31:56,234 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:31:56,234 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:31:56,234 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:31:56,234 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:31:56,235 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:31:56,235 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:31:56,235 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:31:56,235 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:31:56,236 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:31:56,236 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:31:56,236 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:31:56,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:31:56,237 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:31:56,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:31:56,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:31:56,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:31:56,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:31:56,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:31:56,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:31:56,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:31:56,239 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 03:31:56,239 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:31:56,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:31:56,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:31:56,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:31:56,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:31:56,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:31:56,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:56,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:31:56,241 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:31:56,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:31:56,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:31:56,242 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:31:56,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:31:56,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:31:56,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:31:56,243 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_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91e4ed4bfe1f39ec65b13c41c6a7b6461aa954e8b5b654b0aa1c967848462a4b [2022-11-03 03:31:56,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:31:56,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:31:56,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:31:56,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:31:56,525 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:31:56,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i [2022-11-03 03:31:56,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/data/b6d666804/59979a706a0d4de098a57cddcebdad93/FLAG37f4ba169 [2022-11-03 03:31:57,119 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:31:57,120 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i [2022-11-03 03:31:57,132 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/data/b6d666804/59979a706a0d4de098a57cddcebdad93/FLAG37f4ba169 [2022-11-03 03:31:57,451 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/data/b6d666804/59979a706a0d4de098a57cddcebdad93 [2022-11-03 03:31:57,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:31:57,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:31:57,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:57,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:31:57,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:31:57,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:57" (1/1) ... [2022-11-03 03:31:57,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18faf8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:57, skipping insertion in model container [2022-11-03 03:31:57,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:57" (1/1) ... [2022-11-03 03:31:57,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:31:57,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:31:57,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:57,906 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:31:57,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:58,017 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:31:58,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58 WrapperNode [2022-11-03 03:31:58,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:58,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:58,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:31:58,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:31:58,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,108 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2022-11-03 03:31:58,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:58,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:31:58,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:31:58,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:31:58,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:31:58,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:31:58,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:31:58,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:31:58,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:58,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:58,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:31:58,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:31:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:31:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:31:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 03:31:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:31:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:31:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 03:31:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 03:31:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:31:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:31:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:31:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:31:58,225 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:31:58,368 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:31:58,370 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:31:58,732 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:31:58,764 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:31:58,765 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:31:58,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:58 BoogieIcfgContainer [2022-11-03 03:31:58,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:31:58,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:31:58,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:31:58,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:31:58,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:31:57" (1/3) ... [2022-11-03 03:31:58,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f407770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:58, skipping insertion in model container [2022-11-03 03:31:58,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58" (2/3) ... [2022-11-03 03:31:58,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f407770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:58, skipping insertion in model container [2022-11-03 03:31:58,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:58" (3/3) ... [2022-11-03 03:31:58,784 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_37-indirect_rc.i [2022-11-03 03:31:58,793 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:31:58,813 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:31:58,813 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-03 03:31:58,813 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:31:58,901 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 03:31:58,936 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:31:58,956 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 109 transitions, 226 flow [2022-11-03 03:31:58,966 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 109 transitions, 226 flow [2022-11-03 03:31:58,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 109 transitions, 226 flow [2022-11-03 03:31:59,040 INFO L130 PetriNetUnfolder]: 0/108 cut-off events. [2022-11-03 03:31:59,040 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 03:31:59,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 0/108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-03 03:31:59,044 INFO L118 LiptonReduction]: Number of co-enabled transitions 1736 [2022-11-03 03:32:02,161 INFO L133 LiptonReduction]: Checked pairs total: 11020 [2022-11-03 03:32:02,161 INFO L135 LiptonReduction]: Total number of compositions: 80 [2022-11-03 03:32:02,170 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 98 flow [2022-11-03 03:32:02,211 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 372 states, 350 states have (on average 2.0) internal successors, (700), 371 states have internal predecessors, (700), 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) [2022-11-03 03:32:02,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:32:02,236 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;@3a9b8a13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:32:02,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-03 03:32:02,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 372 states, 350 states have (on average 2.0) internal successors, (700), 371 states have internal predecessors, (700), 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) [2022-11-03 03:32:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 03:32:02,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:02,245 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 03:32:02,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 03:32:02,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash 355, now seen corresponding path program 1 times [2022-11-03 03:32:02,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:02,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270069818] [2022-11-03 03:32:02,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:02,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:02,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:02,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:02,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270069818] [2022-11-03 03:32:02,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270069818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:02,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:02,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 03:32:02,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411961553] [2022-11-03 03:32:02,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:02,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:32:02,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:02,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:32:02,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:32:02,435 INFO L87 Difference]: Start difference. First operand has 372 states, 350 states have (on average 2.0) internal successors, (700), 371 states have internal predecessors, (700), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-03 03:32:02,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:02,505 INFO L93 Difference]: Finished difference Result 331 states and 623 transitions. [2022-11-03 03:32:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:32:02,507 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-03 03:32:02,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:02,531 INFO L225 Difference]: With dead ends: 331 [2022-11-03 03:32:02,531 INFO L226 Difference]: Without dead ends: 331 [2022-11-03 03:32:02,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:32:02,538 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:02,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:32:02,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-11-03 03:32:02,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-11-03 03:32:02,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 320 states have (on average 1.946875) internal successors, (623), 330 states have internal predecessors, (623), 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) [2022-11-03 03:32:02,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 623 transitions. [2022-11-03 03:32:02,628 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 623 transitions. Word has length 1 [2022-11-03 03:32:02,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:02,629 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 623 transitions. [2022-11-03 03:32:02,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-03 03:32:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 623 transitions. [2022-11-03 03:32:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 03:32:02,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:02,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:02,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:32:02,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 03:32:02,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash -755014338, now seen corresponding path program 1 times [2022-11-03 03:32:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:02,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449182038] [2022-11-03 03:32:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:02,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:03,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:03,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449182038] [2022-11-03 03:32:03,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449182038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:03,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:03,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:32:03,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127041794] [2022-11-03 03:32:03,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:03,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:32:03,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:03,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:32:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:03,170 INFO L87 Difference]: Start difference. First operand 331 states and 623 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-03 03:32:03,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:03,561 INFO L93 Difference]: Finished difference Result 400 states and 755 transitions. [2022-11-03 03:32:03,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:32:03,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 8 [2022-11-03 03:32:03,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:03,564 INFO L225 Difference]: With dead ends: 400 [2022-11-03 03:32:03,564 INFO L226 Difference]: Without dead ends: 400 [2022-11-03 03:32:03,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:03,565 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 40 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:03,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 22 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:32:03,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-11-03 03:32:03,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 374. [2022-11-03 03:32:03,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 364 states have (on average 1.9368131868131868) internal successors, (705), 373 states have internal predecessors, (705), 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) [2022-11-03 03:32:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 705 transitions. [2022-11-03 03:32:03,591 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 705 transitions. Word has length 8 [2022-11-03 03:32:03,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:03,591 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 705 transitions. [2022-11-03 03:32:03,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-03 03:32:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 705 transitions. [2022-11-03 03:32:03,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 03:32:03,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:03,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:03,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:32:03,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 03:32:03,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1024428331, now seen corresponding path program 1 times [2022-11-03 03:32:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:03,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042110544] [2022-11-03 03:32:03,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:03,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:03,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042110544] [2022-11-03 03:32:03,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042110544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:03,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:03,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:32:03,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106751567] [2022-11-03 03:32:03,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:03,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:32:03,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:03,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:32:03,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:03,815 INFO L87 Difference]: Start difference. First operand 374 states and 705 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-03 03:32:04,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:04,100 INFO L93 Difference]: Finished difference Result 402 states and 755 transitions. [2022-11-03 03:32:04,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:32:04,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 8 [2022-11-03 03:32:04,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:04,103 INFO L225 Difference]: With dead ends: 402 [2022-11-03 03:32:04,103 INFO L226 Difference]: Without dead ends: 402 [2022-11-03 03:32:04,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:04,105 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 24 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:04,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 22 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:32:04,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-03 03:32:04,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 390. [2022-11-03 03:32:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 380 states have (on average 1.9289473684210525) internal successors, (733), 389 states have internal predecessors, (733), 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) [2022-11-03 03:32:04,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 733 transitions. [2022-11-03 03:32:04,117 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 733 transitions. Word has length 8 [2022-11-03 03:32:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:04,117 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 733 transitions. [2022-11-03 03:32:04,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-03 03:32:04,118 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 733 transitions. [2022-11-03 03:32:04,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 03:32:04,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:04,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:04,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:32:04,119 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 03:32:04,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:04,120 INFO L85 PathProgramCache]: Analyzing trace with hash 95970158, now seen corresponding path program 1 times [2022-11-03 03:32:04,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:04,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974684119] [2022-11-03 03:32:04,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:04,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:04,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:04,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974684119] [2022-11-03 03:32:04,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974684119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:04,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:04,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:32:04,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076722245] [2022-11-03 03:32:04,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:04,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:32:04,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:04,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:32:04,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:04,330 INFO L87 Difference]: Start difference. First operand 390 states and 733 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-03 03:32:04,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:04,712 INFO L93 Difference]: Finished difference Result 467 states and 882 transitions. [2022-11-03 03:32:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:32:04,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 03:32:04,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:04,717 INFO L225 Difference]: With dead ends: 467 [2022-11-03 03:32:04,717 INFO L226 Difference]: Without dead ends: 455 [2022-11-03 03:32:04,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:04,718 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:04,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 23 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 03:32:04,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-11-03 03:32:04,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2022-11-03 03:32:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 445 states have (on average 1.9280898876404495) internal successors, (858), 454 states have internal predecessors, (858), 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) [2022-11-03 03:32:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 858 transitions. [2022-11-03 03:32:04,732 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 858 transitions. Word has length 14 [2022-11-03 03:32:04,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:04,732 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 858 transitions. [2022-11-03 03:32:04,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-03 03:32:04,732 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 858 transitions. [2022-11-03 03:32:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 03:32:04,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:04,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:04,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:32:04,735 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 03:32:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:04,735 INFO L85 PathProgramCache]: Analyzing trace with hash -335361289, now seen corresponding path program 1 times [2022-11-03 03:32:04,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:04,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273065915] [2022-11-03 03:32:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:04,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:04,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:04,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273065915] [2022-11-03 03:32:04,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273065915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:04,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:04,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:32:04,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275016116] [2022-11-03 03:32:04,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:05,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:32:05,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:05,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:32:05,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:05,002 INFO L87 Difference]: Start difference. First operand 455 states and 858 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-03 03:32:05,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:05,266 INFO L93 Difference]: Finished difference Result 522 states and 987 transitions. [2022-11-03 03:32:05,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:32:05,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 03:32:05,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:05,271 INFO L225 Difference]: With dead ends: 522 [2022-11-03 03:32:05,272 INFO L226 Difference]: Without dead ends: 522 [2022-11-03 03:32:05,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:05,273 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:05,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 22 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:32:05,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-11-03 03:32:05,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 503. [2022-11-03 03:32:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 493 states have (on average 1.9269776876267748) internal successors, (950), 502 states have internal predecessors, (950), 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) [2022-11-03 03:32:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 950 transitions. [2022-11-03 03:32:05,290 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 950 transitions. Word has length 14 [2022-11-03 03:32:05,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:05,291 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 950 transitions. [2022-11-03 03:32:05,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-03 03:32:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 950 transitions. [2022-11-03 03:32:05,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 03:32:05,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:05,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:05,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:32:05,293 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 03:32:05,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:05,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2033075076, now seen corresponding path program 1 times [2022-11-03 03:32:05,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:05,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591933312] [2022-11-03 03:32:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:05,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:32:05,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:32:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:32:05,357 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:32:05,357 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:32:05,359 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-03 03:32:05,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-03 03:32:05,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-03 03:32:05,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-03 03:32:05,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-03 03:32:05,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-03 03:32:05,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-03 03:32:05,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-03 03:32:05,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2022-11-03 03:32:05,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-03 03:32:05,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-03 03:32:05,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-03 03:32:05,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-03 03:32:05,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-03 03:32:05,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:32:05,367 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-03 03:32:05,374 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 03:32:05,374 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:32:05,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:32:05 BasicIcfg [2022-11-03 03:32:05,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:32:05,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:32:05,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:32:05,407 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:32:05,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:58" (3/4) ... [2022-11-03 03:32:05,411 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:32:05,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:32:05,412 INFO L158 Benchmark]: Toolchain (without parser) took 7955.75ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 68.9MB in the beginning and 121.4MB in the end (delta: -52.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-03 03:32:05,412 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:32:05,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.84ms. Allocated memory is still 104.9MB. Free memory was 68.5MB in the beginning and 69.4MB in the end (delta: -883.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:32:05,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.00ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:32:05,413 INFO L158 Benchmark]: Boogie Preprocessor took 39.85ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 65.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:32:05,414 INFO L158 Benchmark]: RCFGBuilder took 616.17ms. Allocated memory is still 104.9MB. Free memory was 65.6MB in the beginning and 79.0MB in the end (delta: -13.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-11-03 03:32:05,414 INFO L158 Benchmark]: TraceAbstraction took 6638.07ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 78.3MB in the beginning and 121.4MB in the end (delta: -43.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-11-03 03:32:05,414 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 169.9MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:32:05,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.84ms. Allocated memory is still 104.9MB. Free memory was 68.5MB in the beginning and 69.4MB in the end (delta: -883.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.00ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.85ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 65.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 616.17ms. Allocated memory is still 104.9MB. Free memory was 65.6MB in the beginning and 79.0MB in the end (delta: -13.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6638.07ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 78.3MB in the beginning and 121.4MB in the end (delta: -43.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 169.9MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 113 PlacesBefore, 49 PlacesAfterwards, 109 TransitionsBefore, 45 TransitionsAfterwards, 1736 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 80 TotalNumberOfCompositions, 11020 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2060, positive: 1541, positive conditional: 0, positive unconditional: 1541, negative: 519, negative conditional: 0, negative unconditional: 519, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1021, positive: 925, positive conditional: 0, positive unconditional: 925, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1021, positive: 841, positive conditional: 0, positive unconditional: 841, negative: 180, negative conditional: 0, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 180, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 452, positive: 185, positive conditional: 0, positive unconditional: 185, negative: 267, negative conditional: 0, negative unconditional: 267, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2060, positive: 616, positive conditional: 0, positive unconditional: 616, negative: 423, negative conditional: 0, negative unconditional: 423, unknown: 1021, unknown conditional: 0, unknown unconditional: 1021] , Statistics on independence cache: Total cache size (in pairs): 280, Positive cache size: 198, Positive conditional cache size: 0, Positive unconditional cache size: 198, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82 - 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: 685]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int g; [L680] 0 int *g1; [L681] 0 int *g2; [L682] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L690] 0 pthread_t id; [L691] 0 int x; [L692] EXPR 0 g2 = &g [L692] 0 g1 = g2 = &g [L693] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] EXPR 1 *g1 [L685] EXPR 1 \read(*g1) VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [(*g1)++=25, (*g1)++=0, \read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L694] EXPR 0 *g2 [L694] EXPR 0 \read(*g2) VAL [(*g1)++=25, (*g1)++=0, \read(*g1)=0, \read(*g2)=1, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [(*g1)++=25, (*g1)++=0, \read(*g1)=0, \read(*g2)=1, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [(*g1)++=25, (*g1)++=0, \read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: (*g2)++ [694] * C: g2 = &g [692] * C: (*g1)++ [685] * C: (*g1)++ [685] * C: *g2 [694] * C: (*g1)++ [685] * C: (*g1)++ [685] * C: g1 = g2 = &g [692] * C: *g1 [685] * C: g1 = g2 = &g [692] and C: (*g1)++ [685] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: 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: 685]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 685]: 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, 140 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1170 IncrementalHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 115 mSDtfsCounter, 1170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=503occurred in iteration=5, InterpolantAutomatonStates: 26, 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, 5 MinimizatonAttempts, 57 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 03:32:05,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c3b459-6135-4901-a135-850dbb7ce119/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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