./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 54b86d528cae3f36fe49030118864df9a90bfa303271cb05b13ff89a15d513aa --- 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-e04fb08 [2022-11-16 12:01:15,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:01:15,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:01:15,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:01:15,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:01:15,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:01:15,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:01:15,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:01:15,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:01:15,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:01:15,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:01:15,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:01:15,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:01:15,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:01:15,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:01:15,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:01:15,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:01:15,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:01:15,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:01:15,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:01:15,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:01:15,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:01:15,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:01:15,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:01:15,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:01:15,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:01:15,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:01:15,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:01:15,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:01:15,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:01:15,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:01:15,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:01:15,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:01:15,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:01:15,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:01:15,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:01:15,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:01:15,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:01:15,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:01:15,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:01:15,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:01:15,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:01:15,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:01:15,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:01:15,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:01:15,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:01:15,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:01:15,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:01:15,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:01:15,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:01:15,238 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:01:15,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:01:15,238 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:01:15,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:01:15,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:01:15,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:01:15,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:01:15,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:01:15,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:01:15,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:01:15,241 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:01:15,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:01:15,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:01:15,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:01:15,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:01:15,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:01:15,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:01:15,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:01:15,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:15,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:01:15,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:01:15,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:01:15,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:01:15,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:01:15,246 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:01:15,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:01:15,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:01:15,247 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_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54b86d528cae3f36fe49030118864df9a90bfa303271cb05b13ff89a15d513aa [2022-11-16 12:01:15,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:01:15,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:01:15,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:01:15,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:01:15,608 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:01:15,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2022-11-16 12:01:15,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/data/33d5a4bae/b24748be21da42eda217a2d6d12b6468/FLAG2fe77ee6a [2022-11-16 12:01:16,431 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:01:16,432 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2022-11-16 12:01:16,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/data/33d5a4bae/b24748be21da42eda217a2d6d12b6468/FLAG2fe77ee6a [2022-11-16 12:01:16,671 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/data/33d5a4bae/b24748be21da42eda217a2d6d12b6468 [2022-11-16 12:01:16,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:01:16,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:01:16,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:16,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:01:16,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:01:16,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:16" (1/1) ... [2022-11-16 12:01:16,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf42027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:16, skipping insertion in model container [2022-11-16 12:01:16,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:16" (1/1) ... [2022-11-16 12:01:16,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:01:16,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:01:17,607 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2022-11-16 12:01:17,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:17,798 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:01:17,843 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2022-11-16 12:01:17,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:17,964 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:01:17,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17 WrapperNode [2022-11-16 12:01:17,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:17,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:17,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:01:17,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:01:17,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,053 INFO L138 Inliner]: procedures = 278, calls = 60, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 337 [2022-11-16 12:01:18,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:18,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:01:18,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:01:18,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:01:18,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,108 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:01:18,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:01:18,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:01:18,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:01:18,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (1/1) ... [2022-11-16 12:01:18,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:18,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:18,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:01:18,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416d8b6-f256-4c21-9829-a6bcf63563dd/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:01:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:01:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:01:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-16 12:01:18,238 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-16 12:01:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-16 12:01:18,246 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-16 12:01:18,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:01:18,246 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:01:18,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:01:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:01:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:01:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:01:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:01:18,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:01:18,251 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:01:18,433 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:01:18,436 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:01:19,332 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:01:19,351 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:01:19,351 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-16 12:01:19,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:19 BoogieIcfgContainer [2022-11-16 12:01:19,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:01:19,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:01:19,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:01:19,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:01:19,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:16" (1/3) ... [2022-11-16 12:01:19,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20497356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:19, skipping insertion in model container [2022-11-16 12:01:19,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:17" (2/3) ... [2022-11-16 12:01:19,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20497356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:19, skipping insertion in model container [2022-11-16 12:01:19,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:19" (3/3) ... [2022-11-16 12:01:19,368 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2022-11-16 12:01:19,383 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:01:19,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:01:19,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-16 12:01:19,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:01:19,565 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 12:01:19,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 349 places, 369 transitions, 760 flow [2022-11-16 12:01:19,990 INFO L130 PetriNetUnfolder]: 54/658 cut-off events. [2022-11-16 12:01:19,990 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2022-11-16 12:01:20,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 658 events. 54/658 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3042 event pairs, 0 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 329. Up to 8 conditions per place. [2022-11-16 12:01:20,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 349 places, 369 transitions, 760 flow [2022-11-16 12:01:20,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 349 places, 369 transitions, 760 flow [2022-11-16 12:01:20,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:01:20,043 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=PETRI_NET, 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;@c30c041, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:01:20,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-16 12:01:20,062 INFO L130 PetriNetUnfolder]: 6/106 cut-off events. [2022-11-16 12:01:20,062 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:01:20,063 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:20,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:20,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-16 12:01:20,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:20,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1230432809, now seen corresponding path program 1 times [2022-11-16 12:01:20,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:20,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702695694] [2022-11-16 12:01:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:20,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:20,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702695694] [2022-11-16 12:01:20,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702695694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:20,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:20,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:01:20,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054342385] [2022-11-16 12:01:20,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:20,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:01:20,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:20,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:01:20,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:01:20,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 369 [2022-11-16 12:01:20,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 369 transitions, 760 flow. Second operand has 2 states, 2 states have (on average 346.5) internal successors, (693), 2 states have internal predecessors, (693), 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) [2022-11-16 12:01:20,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:20,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 369 [2022-11-16 12:01:20,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:20,648 INFO L130 PetriNetUnfolder]: 15/617 cut-off events. [2022-11-16 12:01:20,649 INFO L131 PetriNetUnfolder]: For 39/53 co-relation queries the response was YES. [2022-11-16 12:01:20,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 617 events. 15/617 cut-off events. For 39/53 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2650 event pairs, 0 based on Foata normal form. 62/621 useless extension candidates. Maximal degree in co-relation 312. Up to 12 conditions per place. [2022-11-16 12:01:20,660 INFO L137 encePairwiseOnDemand]: 352/369 looper letters, 6 selfloop transitions, 0 changer transitions 0/351 dead transitions. [2022-11-16 12:01:20,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 351 transitions, 736 flow [2022-11-16 12:01:20,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:01:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:01:20,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 713 transitions. [2022-11-16 12:01:20,684 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9661246612466124 [2022-11-16 12:01:20,685 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 713 transitions. [2022-11-16 12:01:20,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 713 transitions. [2022-11-16 12:01:20,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:20,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 713 transitions. [2022-11-16 12:01:20,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 356.5) internal successors, (713), 2 states have internal predecessors, (713), 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) [2022-11-16 12:01:20,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 369.0) internal successors, (1107), 3 states have internal predecessors, (1107), 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) [2022-11-16 12:01:20,712 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 369.0) internal successors, (1107), 3 states have internal predecessors, (1107), 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) [2022-11-16 12:01:20,714 INFO L175 Difference]: Start difference. First operand has 349 places, 369 transitions, 760 flow. Second operand 2 states and 713 transitions. [2022-11-16 12:01:20,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 351 transitions, 736 flow [2022-11-16 12:01:20,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 351 transitions, 736 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:20,734 INFO L231 Difference]: Finished difference. Result has 349 places, 351 transitions, 724 flow [2022-11-16 12:01:20,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=724, PETRI_PLACES=349, PETRI_TRANSITIONS=351} [2022-11-16 12:01:20,741 INFO L288 CegarLoopForPetriNet]: 349 programPoint places, 0 predicate places. [2022-11-16 12:01:20,742 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 351 transitions, 724 flow [2022-11-16 12:01:20,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 346.5) internal successors, (693), 2 states have internal predecessors, (693), 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) [2022-11-16 12:01:20,743 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:20,744 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:20,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:01:20,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-16 12:01:20,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1401252744, now seen corresponding path program 1 times [2022-11-16 12:01:20,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:20,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697585078] [2022-11-16 12:01:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:20,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:20,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:20,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697585078] [2022-11-16 12:01:20,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697585078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:20,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:20,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:01:20,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333649917] [2022-11-16 12:01:20,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:20,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:01:21,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:01:21,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:01:21,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 369 [2022-11-16 12:01:21,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 351 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 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) [2022-11-16 12:01:21,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:21,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 369 [2022-11-16 12:01:21,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:21,290 INFO L130 PetriNetUnfolder]: 15/656 cut-off events. [2022-11-16 12:01:21,291 INFO L131 PetriNetUnfolder]: For 39/53 co-relation queries the response was YES. [2022-11-16 12:01:21,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 656 events. 15/656 cut-off events. For 39/53 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2643 event pairs, 0 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 709. Up to 26 conditions per place. [2022-11-16 12:01:21,302 INFO L137 encePairwiseOnDemand]: 366/369 looper letters, 29 selfloop transitions, 2 changer transitions 0/362 dead transitions. [2022-11-16 12:01:21,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 362 transitions, 808 flow [2022-11-16 12:01:21,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:01:21,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:01:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1025 transitions. [2022-11-16 12:01:21,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2022-11-16 12:01:21,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1025 transitions. [2022-11-16 12:01:21,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1025 transitions. [2022-11-16 12:01:21,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:21,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1025 transitions. [2022-11-16 12:01:21,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.6666666666667) internal successors, (1025), 3 states have internal predecessors, (1025), 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) [2022-11-16 12:01:21,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 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) [2022-11-16 12:01:21,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 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) [2022-11-16 12:01:21,346 INFO L175 Difference]: Start difference. First operand has 349 places, 351 transitions, 724 flow. Second operand 3 states and 1025 transitions. [2022-11-16 12:01:21,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 362 transitions, 808 flow [2022-11-16 12:01:21,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 362 transitions, 808 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:21,357 INFO L231 Difference]: Finished difference. Result has 352 places, 352 transitions, 736 flow [2022-11-16 12:01:21,358 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=352, PETRI_TRANSITIONS=352} [2022-11-16 12:01:21,359 INFO L288 CegarLoopForPetriNet]: 349 programPoint places, 3 predicate places. [2022-11-16 12:01:21,360 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 352 transitions, 736 flow [2022-11-16 12:01:21,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 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) [2022-11-16 12:01:21,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:21,361 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:21,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:01:21,362 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-16 12:01:21,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:21,363 INFO L85 PathProgramCache]: Analyzing trace with hash -206017976, now seen corresponding path program 1 times [2022-11-16 12:01:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:21,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656559317] [2022-11-16 12:01:21,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:21,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:21,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:21,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656559317] [2022-11-16 12:01:21,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656559317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:21,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:21,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:01:21,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789037730] [2022-11-16 12:01:21,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:21,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:21,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:21,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:21,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:01:21,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 369 [2022-11-16 12:01:21,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 352 transitions, 736 flow. Second operand has 6 states, 6 states have (on average 226.5) internal successors, (1359), 6 states have internal predecessors, (1359), 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) [2022-11-16 12:01:21,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:21,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 369 [2022-11-16 12:01:21,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:44,149 INFO L130 PetriNetUnfolder]: 46723/103586 cut-off events. [2022-11-16 12:01:44,149 INFO L131 PetriNetUnfolder]: For 634/634 co-relation queries the response was YES. [2022-11-16 12:01:44,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174852 conditions, 103586 events. 46723/103586 cut-off events. For 634/634 co-relation queries the response was YES. Maximal size of possible extension queue 1623. Compared 1132063 event pairs, 45420 based on Foata normal form. 0/89791 useless extension candidates. Maximal degree in co-relation 174845. Up to 70966 conditions per place. [2022-11-16 12:01:45,087 INFO L137 encePairwiseOnDemand]: 363/369 looper letters, 120 selfloop transitions, 5 changer transitions 0/351 dead transitions. [2022-11-16 12:01:45,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 351 transitions, 984 flow [2022-11-16 12:01:45,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:01:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:01:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1476 transitions. [2022-11-16 12:01:45,122 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-11-16 12:01:45,123 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1476 transitions. [2022-11-16 12:01:45,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1476 transitions. [2022-11-16 12:01:45,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:45,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1476 transitions. [2022-11-16 12:01:45,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 246.0) internal successors, (1476), 6 states have internal predecessors, (1476), 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) [2022-11-16 12:01:45,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 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) [2022-11-16 12:01:45,139 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 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) [2022-11-16 12:01:45,139 INFO L175 Difference]: Start difference. First operand has 352 places, 352 transitions, 736 flow. Second operand 6 states and 1476 transitions. [2022-11-16 12:01:45,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 351 transitions, 984 flow [2022-11-16 12:01:45,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 351 transitions, 982 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:01:45,159 INFO L231 Difference]: Finished difference. Result has 355 places, 351 transitions, 742 flow [2022-11-16 12:01:45,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=742, PETRI_PLACES=355, PETRI_TRANSITIONS=351} [2022-11-16 12:01:45,163 INFO L288 CegarLoopForPetriNet]: 349 programPoint places, 6 predicate places. [2022-11-16 12:01:45,163 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 351 transitions, 742 flow [2022-11-16 12:01:45,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 226.5) internal successors, (1359), 6 states have internal predecessors, (1359), 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) [2022-11-16 12:01:45,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:45,165 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:45,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:01:45,166 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-16 12:01:45,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:45,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1614466051, now seen corresponding path program 1 times [2022-11-16 12:01:45,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:45,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268634338] [2022-11-16 12:01:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:45,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:45,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:45,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268634338] [2022-11-16 12:01:45,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268634338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:45,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:45,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:01:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998175468] [2022-11-16 12:01:45,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:45,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:45,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:45,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:45,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:01:45,814 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 369 [2022-11-16 12:01:45,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 351 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 227.5) internal successors, (1365), 6 states have internal predecessors, (1365), 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) [2022-11-16 12:01:45,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:45,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 369 [2022-11-16 12:01:45,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand