./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a --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 c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b --- 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-b5237d8 [2022-11-21 13:48:52,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:48:52,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:48:52,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:48:52,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:48:52,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:48:52,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:48:52,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:48:52,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:48:52,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:48:52,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:48:52,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:48:52,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:48:52,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:48:52,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:48:52,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:48:52,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:48:52,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:48:52,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:48:52,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:48:52,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:48:52,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:48:52,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:48:52,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:48:52,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:48:52,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:48:52,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:48:52,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:48:52,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:48:52,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:48:52,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:48:52,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:48:52,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:48:52,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:48:52,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:48:52,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:48:52,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:48:52,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:48:52,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:48:52,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:48:52,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:48:52,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 13:48:52,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:48:52,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:48:52,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:48:52,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:48:52,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:48:52,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:48:52,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:48:52,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:48:52,207 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:48:52,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:48:52,209 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:48:52,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:48:52,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:48:52,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:48:52,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:48:52,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:48:52,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:48:52,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:48:52,210 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 13:48:52,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:48:52,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:48:52,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:48:52,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:48:52,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:48:52,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:48:52,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:48:52,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:48:52,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:48:52,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:48:52,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:48:52,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:48:52,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:48:52,213 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:48:52,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:48:52,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:48:52,214 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_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b [2022-11-21 13:48:52,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:48:52,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:48:52,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:48:52,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:48:52,548 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:48:52,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-races/race-1_3b-join.i [2022-11-21 13:48:55,578 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:48:56,020 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:48:56,021 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/sv-benchmarks/c/ldv-races/race-1_3b-join.i [2022-11-21 13:48:56,048 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/data/fface80d7/21303d319716434596477b19354fb84d/FLAG7f6588757 [2022-11-21 13:48:56,065 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/data/fface80d7/21303d319716434596477b19354fb84d [2022-11-21 13:48:56,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:48:56,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:48:56,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:48:56,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:48:56,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:48:56,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:48:56" (1/1) ... [2022-11-21 13:48:56,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a59e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:56, skipping insertion in model container [2022-11-21 13:48:56,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:48:56" (1/1) ... [2022-11-21 13:48:56,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:48:56,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:48:57,020 WARN L237 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_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2022-11-21 13:48:57,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:48:57,082 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:48:57,159 WARN L237 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_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2022-11-21 13:48:57,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:48:57,357 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:48:57,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57 WrapperNode [2022-11-21 13:48:57,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:48:57,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:48:57,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:48:57,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:48:57,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,444 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2022-11-21 13:48:57,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:48:57,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:48:57,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:48:57,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:48:57,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,479 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:48:57,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:48:57,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:48:57,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:48:57,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (1/1) ... [2022-11-21 13:48:57,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:48:57,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:57,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:57,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:48:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:48:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:48:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 13:48:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:48:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 13:48:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:48:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:48:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:48:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 13:48:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 13:48:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:48:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:48:57,577 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:48:57,982 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:48:57,984 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:48:58,271 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:48:58,279 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:48:58,279 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:48:58,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:58 BoogieIcfgContainer [2022-11-21 13:48:58,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:48:58,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:48:58,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:48:58,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:48:58,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:48:56" (1/3) ... [2022-11-21 13:48:58,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a056a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:48:58, skipping insertion in model container [2022-11-21 13:48:58,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:57" (2/3) ... [2022-11-21 13:48:58,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a056a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:48:58, skipping insertion in model container [2022-11-21 13:48:58,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:58" (3/3) ... [2022-11-21 13:48:58,297 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2022-11-21 13:48:58,309 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:48:58,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:48:58,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-21 13:48:58,321 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:48:58,419 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 13:48:58,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 314 flow [2022-11-21 13:48:58,590 INFO L130 PetriNetUnfolder]: 6/191 cut-off events. [2022-11-21 13:48:58,592 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 13:48:58,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 191 events. 6/191 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 111. Up to 4 conditions per place. [2022-11-21 13:48:58,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 153 transitions, 314 flow [2022-11-21 13:48:58,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 284 flow [2022-11-21 13:48:58,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:48:58,654 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;@1c8d34ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:48:58,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-21 13:48:58,664 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-21 13:48:58,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:48:58,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:48:58,665 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] [2022-11-21 13:48:58,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-21 13:48:58,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:58,671 INFO L85 PathProgramCache]: Analyzing trace with hash -286395504, now seen corresponding path program 1 times [2022-11-21 13:48:58,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:58,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931600677] [2022-11-21 13:48:58,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:58,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:59,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:59,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:48:59,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931600677] [2022-11-21 13:48:59,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931600677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:48:59,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:48:59,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:48:59,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696527329] [2022-11-21 13:48:59,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:48:59,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:48:59,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:48:59,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:48:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:48:59,194 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-21 13:48:59,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2022-11-21 13:48:59,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:48:59,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-21 13:48:59,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:48:59,302 INFO L130 PetriNetUnfolder]: 18/254 cut-off events. [2022-11-21 13:48:59,303 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 13:48:59,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 254 events. 18/254 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 742 event pairs, 18 based on Foata normal form. 7/222 useless extension candidates. Maximal degree in co-relation 182. Up to 71 conditions per place. [2022-11-21 13:48:59,306 INFO L137 encePairwiseOnDemand]: 147/153 looper letters, 28 selfloop transitions, 2 changer transitions 2/132 dead transitions. [2022-11-21 13:48:59,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 132 transitions, 330 flow [2022-11-21 13:48:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:48:59,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:48:59,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2022-11-21 13:48:59,321 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8126361655773421 [2022-11-21 13:48:59,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2022-11-21 13:48:59,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2022-11-21 13:48:59,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:48:59,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2022-11-21 13:48:59,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-11-21 13:48:59,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:48:59,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:48:59,340 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 284 flow. Second operand 3 states and 373 transitions. [2022-11-21 13:48:59,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 132 transitions, 330 flow [2022-11-21 13:48:59,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 132 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:48:59,348 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 266 flow [2022-11-21 13:48:59,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2022-11-21 13:48:59,354 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -4 predicate places. [2022-11-21 13:48:59,354 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 266 flow [2022-11-21 13:48:59,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2022-11-21 13:48:59,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:48:59,355 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] [2022-11-21 13:48:59,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:48:59,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-21 13:48:59,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:59,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2091859442, now seen corresponding path program 1 times [2022-11-21 13:48:59,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:59,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618247481] [2022-11-21 13:48:59,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:59,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:59,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:59,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:48:59,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618247481] [2022-11-21 13:48:59,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618247481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:48:59,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:48:59,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:48:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390368951] [2022-11-21 13:48:59,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:48:59,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:48:59,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:48:59,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:48:59,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:48:59,462 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 153 [2022-11-21 13:48:59,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2022-11-21 13:48:59,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:48:59,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 153 [2022-11-21 13:48:59,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:48:59,585 INFO L130 PetriNetUnfolder]: 19/268 cut-off events. [2022-11-21 13:48:59,585 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-11-21 13:48:59,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 268 events. 19/268 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 830 event pairs, 8 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 307. Up to 49 conditions per place. [2022-11-21 13:48:59,589 INFO L137 encePairwiseOnDemand]: 140/153 looper letters, 21 selfloop transitions, 8 changer transitions 3/134 dead transitions. [2022-11-21 13:48:59,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 134 transitions, 337 flow [2022-11-21 13:48:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:48:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:48:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2022-11-21 13:48:59,595 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8344226579520697 [2022-11-21 13:48:59,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2022-11-21 13:48:59,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2022-11-21 13:48:59,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:48:59,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2022-11-21 13:48:59,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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) [2022-11-21 13:48:59,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:48:59,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:48:59,602 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 266 flow. Second operand 3 states and 383 transitions. [2022-11-21 13:48:59,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 134 transitions, 337 flow [2022-11-21 13:48:59,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 134 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:48:59,609 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 300 flow [2022-11-21 13:48:59,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2022-11-21 13:48:59,610 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -7 predicate places. [2022-11-21 13:48:59,611 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 300 flow [2022-11-21 13:48:59,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2022-11-21 13:48:59,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:48:59,612 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] [2022-11-21 13:48:59,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:48:59,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-21 13:48:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:59,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2002536850, now seen corresponding path program 1 times [2022-11-21 13:48:59,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:59,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040472816] [2022-11-21 13:48:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:59,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:59,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:48:59,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040472816] [2022-11-21 13:48:59,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040472816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:48:59,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:48:59,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:48:59,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417905203] [2022-11-21 13:48:59,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:48:59,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:48:59,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:48:59,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:48:59,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:48:59,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-21 13:48:59,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2022-11-21 13:48:59,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:48:59,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-21 13:48:59,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:48:59,908 INFO L130 PetriNetUnfolder]: 19/264 cut-off events. [2022-11-21 13:48:59,908 INFO L131 PetriNetUnfolder]: For 49/56 co-relation queries the response was YES. [2022-11-21 13:48:59,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 264 events. 19/264 cut-off events. For 49/56 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 824 event pairs, 12 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 67. Up to 71 conditions per place. [2022-11-21 13:48:59,910 INFO L137 encePairwiseOnDemand]: 150/153 looper letters, 26 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2022-11-21 13:48:59,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 354 flow [2022-11-21 13:48:59,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:48:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:48:59,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2022-11-21 13:48:59,912 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7930283224400871 [2022-11-21 13:48:59,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2022-11-21 13:48:59,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2022-11-21 13:48:59,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:48:59,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2022-11-21 13:48:59,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2022-11-21 13:48:59,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:48:59,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:48:59,917 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 300 flow. Second operand 3 states and 364 transitions. [2022-11-21 13:48:59,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 354 flow [2022-11-21 13:48:59,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:48:59,922 INFO L231 Difference]: Finished difference. Result has 128 places, 127 transitions, 286 flow [2022-11-21 13:48:59,922 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=128, PETRI_TRANSITIONS=127} [2022-11-21 13:48:59,923 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -11 predicate places. [2022-11-21 13:48:59,924 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 127 transitions, 286 flow [2022-11-21 13:48:59,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2022-11-21 13:48:59,924 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:48:59,925 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] [2022-11-21 13:48:59,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:48:59,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-21 13:48:59,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:59,926 INFO L85 PathProgramCache]: Analyzing trace with hash 242499866, now seen corresponding path program 1 times [2022-11-21 13:48:59,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:59,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932224972] [2022-11-21 13:48:59,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:59,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:49:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:49:00,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:49:00,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932224972] [2022-11-21 13:49:00,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932224972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:49:00,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:49:00,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:49:00,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367416790] [2022-11-21 13:49:00,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:49:00,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:49:00,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:49:00,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:49:00,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:49:00,026 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 153 [2022-11-21 13:49:00,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-11-21 13:49:00,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:49:00,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 153 [2022-11-21 13:49:00,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:49:00,128 INFO L130 PetriNetUnfolder]: 35/338 cut-off events. [2022-11-21 13:49:00,128 INFO L131 PetriNetUnfolder]: For 29/37 co-relation queries the response was YES. [2022-11-21 13:49:00,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 338 events. 35/338 cut-off events. For 29/37 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1312 event pairs, 11 based on Foata normal form. 2/302 useless extension candidates. Maximal degree in co-relation 422. Up to 78 conditions per place. [2022-11-21 13:49:00,134 INFO L137 encePairwiseOnDemand]: 147/153 looper letters, 30 selfloop transitions, 6 changer transitions 6/136 dead transitions. [2022-11-21 13:49:00,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 136 transitions, 386 flow [2022-11-21 13:49:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:49:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:49:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2022-11-21 13:49:00,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-11-21 13:49:00,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2022-11-21 13:49:00,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2022-11-21 13:49:00,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:49:00,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2022-11-21 13:49:00,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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) [2022-11-21 13:49:00,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:49:00,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:49:00,146 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 286 flow. Second operand 3 states and 374 transitions. [2022-11-21 13:49:00,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 136 transitions, 386 flow [2022-11-21 13:49:00,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:49:00,150 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 316 flow [2022-11-21 13:49:00,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2022-11-21 13:49:00,153 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -9 predicate places. [2022-11-21 13:49:00,154 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 316 flow [2022-11-21 13:49:00,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-11-21 13:49:00,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:49:00,160 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, 1, 1, 1, 1, 1] [2022-11-21 13:49:00,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:49:00,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-21 13:49:00,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:49:00,161 INFO L85 PathProgramCache]: Analyzing trace with hash 386620905, now seen corresponding path program 1 times [2022-11-21 13:49:00,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:49:00,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114556578] [2022-11-21 13:49:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:49:00,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:49:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:49:00,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:49:00,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:49:00,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114556578] [2022-11-21 13:49:00,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114556578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:49:00,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:49:00,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:49:00,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561566443] [2022-11-21 13:49:00,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:49:00,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:49:00,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:49:00,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:49:00,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:49:00,261 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-21 13:49:00,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2022-11-21 13:49:00,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:49:00,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-21 13:49:00,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:49:00,381 INFO L130 PetriNetUnfolder]: 30/331 cut-off events. [2022-11-21 13:49:00,381 INFO L131 PetriNetUnfolder]: For 83/85 co-relation queries the response was YES. [2022-11-21 13:49:00,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 331 events. 30/331 cut-off events. For 83/85 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1336 event pairs, 9 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 65. Up to 80 conditions per place. [2022-11-21 13:49:00,383 INFO L137 encePairwiseOnDemand]: 148/153 looper letters, 31 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2022-11-21 13:49:00,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 416 flow [2022-11-21 13:49:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:49:00,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:49:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2022-11-21 13:49:00,386 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2022-11-21 13:49:00,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2022-11-21 13:49:00,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2022-11-21 13:49:00,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:49:00,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2022-11-21 13:49:00,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2022-11-21 13:49:00,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:49:00,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-21 13:49:00,391 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 316 flow. Second operand 3 states and 369 transitions. [2022-11-21 13:49:00,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 416 flow [2022-11-21 13:49:00,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:49:00,400 INFO L231 Difference]: Finished difference. Result has 126 places, 128 transitions, 346 flow [2022-11-21 13:49:00,401 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=126, PETRI_TRANSITIONS=128} [2022-11-21 13:49:00,403 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -13 predicate places. [2022-11-21 13:49:00,403 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 128 transitions, 346 flow [2022-11-21 13:49:00,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2022-11-21 13:49:00,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:49:00,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:49:00,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:49:00,405 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-21 13:49:00,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:49:00,406 INFO L85 PathProgramCache]: Analyzing trace with hash -628967552, now seen corresponding path program 1 times [2022-11-21 13:49:00,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:49:00,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352978669] [2022-11-21 13:49:00,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:49:00,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:49:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:49:00,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:49:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:49:00,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:49:00,522 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:49:00,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-11-21 13:49:00,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-11-21 13:49:00,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-11-21 13:49:00,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-11-21 13:49:00,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-11-21 13:49:00,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-11-21 13:49:00,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-11-21 13:49:00,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-11-21 13:49:00,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2022-11-21 13:49:00,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-11-21 13:49:00,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-11-21 13:49:00,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-11-21 13:49:00,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:49:00,529 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-21 13:49:00,535 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:49:00,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:49:00,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:49:00 BasicIcfg [2022-11-21 13:49:00,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:49:00,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:49:00,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:49:00,586 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:49:00,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:58" (3/4) ... [2022-11-21 13:49:00,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:49:00,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:49:00,590 INFO L158 Benchmark]: Toolchain (without parser) took 4518.80ms. Allocated memory was 113.2MB in the beginning and 201.3MB in the end (delta: 88.1MB). Free memory was 79.8MB in the beginning and 137.5MB in the end (delta: -57.7MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2022-11-21 13:49:00,591 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory was 83.1MB in the beginning and 83.1MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:49:00,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1285.35ms. Allocated memory was 113.2MB in the beginning and 161.5MB in the end (delta: 48.2MB). Free memory was 79.4MB in the beginning and 110.2MB in the end (delta: -30.9MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-11-21 13:49:00,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.50ms. Allocated memory is still 161.5MB. Free memory was 110.2MB in the beginning and 107.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:49:00,593 INFO L158 Benchmark]: Boogie Preprocessor took 41.24ms. Allocated memory is still 161.5MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:49:00,593 INFO L158 Benchmark]: RCFGBuilder took 795.05ms. Allocated memory is still 161.5MB. Free memory was 104.9MB in the beginning and 83.0MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 13:49:00,594 INFO L158 Benchmark]: TraceAbstraction took 2300.71ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 81.9MB in the beginning and 138.6MB in the end (delta: -56.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:49:00,594 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 201.3MB. Free memory was 138.6MB in the beginning and 137.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:49:00,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory was 83.1MB in the beginning and 83.1MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1285.35ms. Allocated memory was 113.2MB in the beginning and 161.5MB in the end (delta: 48.2MB). Free memory was 79.4MB in the beginning and 110.2MB in the end (delta: -30.9MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.50ms. Allocated memory is still 161.5MB. Free memory was 110.2MB in the beginning and 107.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.24ms. Allocated memory is still 161.5MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 795.05ms. Allocated memory is still 161.5MB. Free memory was 104.9MB in the beginning and 83.0MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2300.71ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 81.9MB in the beginning and 138.6MB in the end (delta: -56.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 201.3MB. Free memory was 138.6MB in the beginning and 137.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; VAL [t1={3:0}] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={4:0}, t1={3:0}] [L1696] 0 int pdev; VAL [mutex={4:0}, pdev=0, t1={3:0}] [L1726] CALL, EXPR 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] EXPR 0 pdev==1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={4:0}, pdev=1, t1={3:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 return 0; VAL [\result=0, arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1726] RET, EXPR 0 module_init() [L1726] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, arg={0:0}, module_init()=0, mutex={4:0}, pdev=6, t1={3:0}] [L1727] CALL 0 module_exit() [L1717] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, status={5:0}, t1={3:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, pdev = 6=1153, t1={3:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, pdev = 4=1150, pdev = 6=1153, status={5:0}, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, pdev = 6=1153, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 4 [1718] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 162 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 109 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 109 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 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 proved your program to be incorrect! [2022-11-21 13:49:00,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7518c88c-f1d6-49a5-b7f2-0cf3a9ee2635/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE