./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8 --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 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:10:25,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:10:25,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:10:25,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:10:25,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:10:25,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:10:25,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:10:25,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:10:25,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:10:25,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:10:25,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:10:25,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:10:25,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:10:25,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:10:25,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:10:25,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:10:25,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:10:25,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:10:25,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:10:25,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:10:25,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:10:25,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:10:25,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:10:25,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:10:25,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:10:25,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:10:25,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:10:25,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:10:25,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:10:25,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:10:25,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:10:25,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:10:25,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:10:25,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:10:25,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:10:25,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:10:25,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:10:25,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:10:25,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:10:25,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:10:25,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:10:25,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 22:10:25,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:10:25,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:10:25,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:10:25,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:10:25,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:10:25,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:10:25,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:10:25,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:10:25,312 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:10:25,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:10:25,312 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:10:25,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:10:25,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:10:25,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:10:25,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:10:25,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:10:25,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:10:25,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:10:25,314 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 22:10:25,314 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:10:25,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:10:25,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:10:25,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:10:25,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:10:25,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:10:25,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:10:25,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:10:25,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:10:25,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:10:25,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:10:25,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:10:25,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:10:25,317 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:10:25,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:10:25,317 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:10:25,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:10:25,317 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:10:25,317 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 [2022-12-13 22:10:25,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:10:25,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:10:25,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:10:25,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:10:25,534 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:10:25,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 22:10:28,110 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:10:28,328 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:10:28,328 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 22:10:28,340 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/data/eaa4aa633/c0464e95f8f343919b61a47703639319/FLAG99bcf1f06 [2022-12-13 22:10:28,679 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/data/eaa4aa633/c0464e95f8f343919b61a47703639319 [2022-12-13 22:10:28,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:10:28,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:10:28,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:10:28,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:10:28,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:10:28,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:10:28" (1/1) ... [2022-12-13 22:10:28,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfd947a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:28, skipping insertion in model container [2022-12-13 22:10:28,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:10:28" (1/1) ... [2022-12-13 22:10:28,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:10:28,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:10:28,855 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_7e7371bb-b619-43ff-807a-cb678c19cbba/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-12-13 22:10:28,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:10:28,958 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:10:28,966 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_7e7371bb-b619-43ff-807a-cb678c19cbba/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-12-13 22:10:28,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:10:29,005 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:10:29,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29 WrapperNode [2022-12-13 22:10:29,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:10:29,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:10:29,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:10:29,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:10:29,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,032 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-12-13 22:10:29,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:10:29,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:10:29,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:10:29,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:10:29,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,046 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:10:29,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:10:29,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:10:29,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:10:29,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (1/1) ... [2022-12-13 22:10:29,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:10:29,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:10:29,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:10:29,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:10:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:10:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:10:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 22:10:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:10:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:10:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 22:10:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 22:10:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:10:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:10:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:10:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:10:29,096 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 22:10:29,187 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:10:29,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:10:29,346 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:10:29,354 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:10:29,354 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:10:29,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:10:29 BoogieIcfgContainer [2022-12-13 22:10:29,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:10:29,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:10:29,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:10:29,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:10:29,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:10:28" (1/3) ... [2022-12-13 22:10:29,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643ab245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:10:29, skipping insertion in model container [2022-12-13 22:10:29,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:29" (2/3) ... [2022-12-13 22:10:29,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643ab245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:10:29, skipping insertion in model container [2022-12-13 22:10:29,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:10:29" (3/3) ... [2022-12-13 22:10:29,365 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 22:10:29,373 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 22:10:29,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:10:29,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 22:10:29,382 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:10:29,432 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 22:10:29,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 186 flow [2022-12-13 22:10:29,501 INFO L130 PetriNetUnfolder]: 1/88 cut-off events. [2022-12-13 22:10:29,501 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 22:10:29,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 88 events. 1/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-12-13 22:10:29,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 89 transitions, 186 flow [2022-12-13 22:10:29,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2022-12-13 22:10:29,511 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:10:29,520 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 80 transitions, 163 flow [2022-12-13 22:10:29,522 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 80 transitions, 163 flow [2022-12-13 22:10:29,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 163 flow [2022-12-13 22:10:29,547 INFO L130 PetriNetUnfolder]: 1/80 cut-off events. [2022-12-13 22:10:29,547 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:10:29,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-12-13 22:10:29,550 INFO L119 LiptonReduction]: Number of co-enabled transitions 1152 [2022-12-13 22:10:31,329 INFO L134 LiptonReduction]: Checked pairs total: 3615 [2022-12-13 22:10:31,329 INFO L136 LiptonReduction]: Total number of compositions: 63 [2022-12-13 22:10:31,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:10:31,349 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;@40cd0417, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:10:31,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 22:10:31,353 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 22:10:31,353 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:10:31,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:31,354 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 22:10:31,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 22:10:31,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:31,359 INFO L85 PathProgramCache]: Analyzing trace with hash 286275656, now seen corresponding path program 1 times [2022-12-13 22:10:31,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:31,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012783370] [2022-12-13 22:10:31,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:31,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:31,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:31,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012783370] [2022-12-13 22:10:31,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012783370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:31,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:31,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:10:31,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708673917] [2022-12-13 22:10:31,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:31,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:10:31,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:31,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:10:31,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:10:31,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 152 [2022-12-13 22:10:31,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:31,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 152 [2022-12-13 22:10:31,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:31,651 INFO L130 PetriNetUnfolder]: 98/263 cut-off events. [2022-12-13 22:10:31,651 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:10:31,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 263 events. 98/263 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1190 event pairs, 14 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 487. Up to 120 conditions per place. [2022-12-13 22:10:31,653 INFO L137 encePairwiseOnDemand]: 146/152 looper letters, 29 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2022-12-13 22:10:31,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 145 flow [2022-12-13 22:10:31,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:10:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:10:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2022-12-13 22:10:31,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6030701754385965 [2022-12-13 22:10:31,663 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2022-12-13 22:10:31,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2022-12-13 22:10:31,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:31,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2022-12-13 22:10:31,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,672 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 3 states and 275 transitions. [2022-12-13 22:10:31,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 145 flow [2022-12-13 22:10:31,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 38 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:10:31,675 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 80 flow [2022-12-13 22:10:31,677 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2022-12-13 22:10:31,679 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2022-12-13 22:10:31,679 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 80 flow [2022-12-13 22:10:31,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,680 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:31,680 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:31,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:10:31,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 22:10:31,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:31,681 INFO L85 PathProgramCache]: Analyzing trace with hash 206863369, now seen corresponding path program 1 times [2022-12-13 22:10:31,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:31,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869150043] [2022-12-13 22:10:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:31,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:31,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:31,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869150043] [2022-12-13 22:10:31,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869150043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:31,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:31,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:10:31,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074090562] [2022-12-13 22:10:31,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:31,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:10:31,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:31,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:10:31,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:10:31,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 152 [2022-12-13 22:10:31,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:31,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 152 [2022-12-13 22:10:31,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:31,813 INFO L130 PetriNetUnfolder]: 92/253 cut-off events. [2022-12-13 22:10:31,813 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-13 22:10:31,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 253 events. 92/253 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1114 event pairs, 66 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 531. Up to 197 conditions per place. [2022-12-13 22:10:31,814 INFO L137 encePairwiseOnDemand]: 148/152 looper letters, 23 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2022-12-13 22:10:31,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 152 flow [2022-12-13 22:10:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:10:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:10:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2022-12-13 22:10:31,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5701754385964912 [2022-12-13 22:10:31,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2022-12-13 22:10:31,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2022-12-13 22:10:31,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:31,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2022-12-13 22:10:31,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,818 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,818 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 80 flow. Second operand 3 states and 260 transitions. [2022-12-13 22:10:31,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 152 flow [2022-12-13 22:10:31,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:10:31,820 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 96 flow [2022-12-13 22:10:31,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2022-12-13 22:10:31,820 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2022-12-13 22:10:31,820 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 96 flow [2022-12-13 22:10:31,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:31,821 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:31,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:10:31,821 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 22:10:31,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1366692052, now seen corresponding path program 1 times [2022-12-13 22:10:31,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:31,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489388358] [2022-12-13 22:10:31,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:31,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:31,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:31,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:31,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489388358] [2022-12-13 22:10:31,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489388358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:31,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:31,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:10:31,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071939890] [2022-12-13 22:10:31,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:31,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:10:31,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:10:31,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:10:31,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 152 [2022-12-13 22:10:31,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:31,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:31,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 152 [2022-12-13 22:10:31,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:32,034 INFO L130 PetriNetUnfolder]: 66/194 cut-off events. [2022-12-13 22:10:32,034 INFO L131 PetriNetUnfolder]: For 72/75 co-relation queries the response was YES. [2022-12-13 22:10:32,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 194 events. 66/194 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 835 event pairs, 26 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 422. Up to 91 conditions per place. [2022-12-13 22:10:32,036 INFO L137 encePairwiseOnDemand]: 150/152 looper letters, 24 selfloop transitions, 1 changer transitions 2/37 dead transitions. [2022-12-13 22:10:32,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 176 flow [2022-12-13 22:10:32,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:10:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:10:32,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-12-13 22:10:32,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5855263157894737 [2022-12-13 22:10:32,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-12-13 22:10:32,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-12-13 22:10:32,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:32,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-12-13 22:10:32,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,039 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,039 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 96 flow. Second operand 3 states and 267 transitions. [2022-12-13 22:10:32,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 176 flow [2022-12-13 22:10:32,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 37 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:10:32,041 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 92 flow [2022-12-13 22:10:32,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2022-12-13 22:10:32,041 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2022-12-13 22:10:32,041 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 92 flow [2022-12-13 22:10:32,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:32,042 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:32,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:10:32,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 22:10:32,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash 603895961, now seen corresponding path program 1 times [2022-12-13 22:10:32,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:32,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196143478] [2022-12-13 22:10:32,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:32,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:32,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:32,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:32,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196143478] [2022-12-13 22:10:32,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196143478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:32,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:32,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:10:32,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119575122] [2022-12-13 22:10:32,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:32,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:10:32,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:32,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:10:32,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:10:32,173 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 152 [2022-12-13 22:10:32,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:32,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 152 [2022-12-13 22:10:32,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:32,216 INFO L130 PetriNetUnfolder]: 23/96 cut-off events. [2022-12-13 22:10:32,216 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-13 22:10:32,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 96 events. 23/96 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 262 event pairs, 7 based on Foata normal form. 12/108 useless extension candidates. Maximal degree in co-relation 206. Up to 51 conditions per place. [2022-12-13 22:10:32,217 INFO L137 encePairwiseOnDemand]: 145/152 looper letters, 11 selfloop transitions, 6 changer transitions 4/26 dead transitions. [2022-12-13 22:10:32,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 118 flow [2022-12-13 22:10:32,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:10:32,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:10:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 327 transitions. [2022-12-13 22:10:32,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.537828947368421 [2022-12-13 22:10:32,219 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 327 transitions. [2022-12-13 22:10:32,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 327 transitions. [2022-12-13 22:10:32,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:32,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 327 transitions. [2022-12-13 22:10:32,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,221 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,221 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 92 flow. Second operand 4 states and 327 transitions. [2022-12-13 22:10:32,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 118 flow [2022-12-13 22:10:32,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 107 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-13 22:10:32,222 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 65 flow [2022-12-13 22:10:32,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2022-12-13 22:10:32,223 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 22:10:32,223 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 65 flow [2022-12-13 22:10:32,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,223 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:32,223 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:32,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:10:32,224 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 22:10:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:32,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2115803200, now seen corresponding path program 1 times [2022-12-13 22:10:32,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:32,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528857279] [2022-12-13 22:10:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:32,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:32,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:32,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528857279] [2022-12-13 22:10:32,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528857279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:32,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:32,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:10:32,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657362353] [2022-12-13 22:10:32,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:32,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:10:32,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:32,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:10:32,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:10:32,258 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 152 [2022-12-13 22:10:32,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:32,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 152 [2022-12-13 22:10:32,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:32,285 INFO L130 PetriNetUnfolder]: 15/62 cut-off events. [2022-12-13 22:10:32,286 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 22:10:32,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 62 events. 15/62 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 131 event pairs, 12 based on Foata normal form. 3/65 useless extension candidates. Maximal degree in co-relation 143. Up to 50 conditions per place. [2022-12-13 22:10:32,286 INFO L137 encePairwiseOnDemand]: 150/152 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-12-13 22:10:32,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 99 flow [2022-12-13 22:10:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:10:32,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:10:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2022-12-13 22:10:32,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5482456140350878 [2022-12-13 22:10:32,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2022-12-13 22:10:32,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2022-12-13 22:10:32,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:32,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2022-12-13 22:10:32,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,292 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,292 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 65 flow. Second operand 3 states and 250 transitions. [2022-12-13 22:10:32,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 99 flow [2022-12-13 22:10:32,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:10:32,293 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2022-12-13 22:10:32,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2022-12-13 22:10:32,293 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, -3 predicate places. [2022-12-13 22:10:32,293 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2022-12-13 22:10:32,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:32,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-12-13 22:10:32,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-12-13 22:10:32,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-13 22:10:32,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-12-13 22:10:32,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-12-13 22:10:32,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-12-13 22:10:32,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-12-13 22:10:32,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:10:32,297 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 22:10:32,300 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 22:10:32,301 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:10:32,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:10:32 BasicIcfg [2022-12-13 22:10:32,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:10:32,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:10:32,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:10:32,304 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:10:32,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:10:29" (3/4) ... [2022-12-13 22:10:32,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 22:10:32,311 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 22:10:32,315 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 22:10:32,316 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 22:10:32,316 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 22:10:32,316 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 22:10:32,356 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:10:32,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:10:32,357 INFO L158 Benchmark]: Toolchain (without parser) took 3671.87ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 135.8MB in the beginning and 169.3MB in the end (delta: -33.5MB). Peak memory consumption was 116.7MB. Max. memory is 16.1GB. [2022-12-13 22:10:32,357 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory was 143.4MB in the beginning and 143.4MB in the end (delta: 17.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:10:32,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.81ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 117.2MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 22:10:32,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.95ms. Allocated memory is still 167.8MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:10:32,358 INFO L158 Benchmark]: Boogie Preprocessor took 15.40ms. Allocated memory is still 167.8MB. Free memory was 115.1MB in the beginning and 113.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:10:32,358 INFO L158 Benchmark]: RCFGBuilder took 308.25ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 99.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 22:10:32,358 INFO L158 Benchmark]: TraceAbstraction took 2944.28ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 98.3MB in the beginning and 58.8MB in the end (delta: 39.4MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2022-12-13 22:10:32,359 INFO L158 Benchmark]: Witness Printer took 53.10ms. Allocated memory is still 201.3MB. Free memory was 58.8MB in the beginning and 169.3MB in the end (delta: -110.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:10:32,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory was 143.4MB in the beginning and 143.4MB in the end (delta: 17.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.81ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 117.2MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.95ms. Allocated memory is still 167.8MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.40ms. Allocated memory is still 167.8MB. Free memory was 115.1MB in the beginning and 113.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.25ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 99.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2944.28ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 98.3MB in the beginning and 58.8MB in the end (delta: 39.4MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. * Witness Printer took 53.10ms. Allocated memory is still 201.3MB. Free memory was 58.8MB in the beginning and 169.3MB in the end (delta: -110.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 83 PlacesBefore, 29 PlacesAfterwards, 80 TransitionsBefore, 26 TransitionsAfterwards, 1152 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 63 TotalNumberOfCompositions, 3615 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1449, independent: 1217, independent conditional: 0, independent unconditional: 1217, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 634, independent: 588, independent conditional: 0, independent unconditional: 588, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1449, independent: 629, independent conditional: 0, independent unconditional: 629, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 634, unknown conditional: 0, unknown unconditional: 634] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 7 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: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 305 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 36 mSDtfsCounter, 305 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 22:10:32,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7371bb-b619-43ff-807a-cb678c19cbba/bin/uautomizer-uyxdKDjOR8/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 Result: TRUE