./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c983783f5358911c3fbbb6a10a3bc1f70631f1803357161b1c0bc876f490a9b5 --- 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-4e7fbc6 [2022-11-23 02:51:30,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:51:30,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:51:30,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:51:30,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:51:30,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:51:30,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:51:30,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:51:30,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:51:30,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:51:30,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:51:30,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:51:30,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:51:30,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:51:30,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:51:30,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:51:30,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:51:30,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:51:30,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:51:30,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:51:30,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:51:30,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:51:30,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:51:30,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:51:30,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:51:30,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:51:30,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:51:30,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:51:30,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:51:30,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:51:30,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:51:30,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:51:30,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:51:30,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:51:30,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:51:30,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:51:30,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:51:30,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:51:30,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:51:30,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:51:30,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:51:30,355 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 02:51:30,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:51:30,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:51:30,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:51:30,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:51:30,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:51:30,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:51:30,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:51:30,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:51:30,398 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:51:30,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:51:30,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:51:30,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:51:30,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:51:30,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:51:30,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:51:30,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:51:30,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:51:30,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:51:30,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:51:30,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:51:30,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:51:30,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:51:30,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:51:30,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:51:30,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:51:30,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:51:30,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:51:30,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:51:30,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:51:30,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:51:30,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:51:30,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:51:30,406 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:51:30,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:51:30,407 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_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c983783f5358911c3fbbb6a10a3bc1f70631f1803357161b1c0bc876f490a9b5 [2022-11-23 02:51:30,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:51:30,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:51:30,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:51:30,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:51:30,767 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:51:30,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i [2022-11-23 02:51:33,811 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:51:34,047 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:51:34,048 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i [2022-11-23 02:51:34,065 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/data/aeb88d8a2/b86b444e767340eea2f4d0d47a427d2f/FLAGdb2d3060b [2022-11-23 02:51:34,087 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/data/aeb88d8a2/b86b444e767340eea2f4d0d47a427d2f [2022-11-23 02:51:34,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:51:34,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:51:34,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:51:34,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:51:34,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:51:34,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26fb083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34, skipping insertion in model container [2022-11-23 02:51:34,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:51:34,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:51:34,364 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_c1debef7-2492-488a-9bdf-ace1a9f8e31c/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i[1094,1107] [2022-11-23 02:51:34,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:51:34,555 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:51:34,567 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_c1debef7-2492-488a-9bdf-ace1a9f8e31c/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i[1094,1107] [2022-11-23 02:51:34,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:51:34,625 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:51:34,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34 WrapperNode [2022-11-23 02:51:34,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:51:34,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:51:34,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:51:34,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:51:34,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,666 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2022-11-23 02:51:34,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:51:34,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:51:34,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:51:34,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:51:34,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,687 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:51:34,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:51:34,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:51:34,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:51:34,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (1/1) ... [2022-11-23 02:51:34,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:51:34,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:51:34,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:51:34,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:51:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:51:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:51:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 02:51:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:51:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:51:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 02:51:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 02:51:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:51:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:51:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:51:34,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:51:34,783 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:51:34,906 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:51:34,909 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:51:35,098 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:51:35,105 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:51:35,105 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:51:35,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:35 BoogieIcfgContainer [2022-11-23 02:51:35,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:51:35,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:51:35,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:51:35,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:51:35,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:51:34" (1/3) ... [2022-11-23 02:51:35,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f93a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:35, skipping insertion in model container [2022-11-23 02:51:35,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:34" (2/3) ... [2022-11-23 02:51:35,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f93a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:35, skipping insertion in model container [2022-11-23 02:51:35,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:35" (3/3) ... [2022-11-23 02:51:35,117 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_true.i [2022-11-23 02:51:35,125 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:51:35,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:51:35,136 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 02:51:35,136 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:51:35,291 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 02:51:35,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 170 flow [2022-11-23 02:51:35,403 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-11-23 02:51:35,403 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 02:51:35,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 2/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-11-23 02:51:35,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 170 flow [2022-11-23 02:51:35,414 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 63 transitions, 129 flow [2022-11-23 02:51:35,418 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:51:35,440 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 63 transitions, 129 flow [2022-11-23 02:51:35,448 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 63 transitions, 129 flow [2022-11-23 02:51:35,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 129 flow [2022-11-23 02:51:35,478 INFO L130 PetriNetUnfolder]: 1/63 cut-off events. [2022-11-23 02:51:35,478 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:51:35,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-11-23 02:51:35,479 INFO L119 LiptonReduction]: Number of co-enabled transitions 180 [2022-11-23 02:51:39,627 INFO L134 LiptonReduction]: Checked pairs total: 308 [2022-11-23 02:51:39,627 INFO L136 LiptonReduction]: Total number of compositions: 68 [2022-11-23 02:51:39,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:51:39,648 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;@3009e162, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:51:39,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 02:51:39,650 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 02:51:39,650 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:51:39,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:51:39,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 02:51:39,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 02:51:39,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:51:39,656 INFO L85 PathProgramCache]: Analyzing trace with hash 293, now seen corresponding path program 1 times [2022-11-23 02:51:39,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:51:39,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965026881] [2022-11-23 02:51:39,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:51:39,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:51:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:51:39,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:51:39,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:51:39,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965026881] [2022-11-23 02:51:39,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965026881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:51:39,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:51:39,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 02:51:39,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753996878] [2022-11-23 02:51:39,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:51:39,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:51:39,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:51:39,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:51:39,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:51:39,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 149 [2022-11-23 02:51:39,836 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 9 transitions, 21 flow. Second operand has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 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) [2022-11-23 02:51:39,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:51:39,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 149 [2022-11-23 02:51:39,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:51:39,877 INFO L130 PetriNetUnfolder]: 8/24 cut-off events. [2022-11-23 02:51:39,877 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:51:39,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 24 events. 8/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 8 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 44. Up to 25 conditions per place. [2022-11-23 02:51:39,880 INFO L137 encePairwiseOnDemand]: 148/149 looper letters, 8 selfloop transitions, 0 changer transitions 0/8 dead transitions. [2022-11-23 02:51:39,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 35 flow [2022-11-23 02:51:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:51:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:51:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2022-11-23 02:51:39,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5335570469798657 [2022-11-23 02:51:39,900 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2022-11-23 02:51:39,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2022-11-23 02:51:39,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:51:39,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2022-11-23 02:51:39,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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) [2022-11-23 02:51:39,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2022-11-23 02:51:39,919 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2022-11-23 02:51:39,921 INFO L175 Difference]: Start difference. First operand has 13 places, 9 transitions, 21 flow. Second operand 2 states and 159 transitions. [2022-11-23 02:51:39,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 35 flow [2022-11-23 02:51:39,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:51:39,924 INFO L231 Difference]: Finished difference. Result has 12 places, 8 transitions, 18 flow [2022-11-23 02:51:39,926 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=12, PETRI_TRANSITIONS=8} [2022-11-23 02:51:39,931 INFO L288 CegarLoopForPetriNet]: 13 programPoint places, -1 predicate places. [2022-11-23 02:51:39,931 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 8 transitions, 18 flow [2022-11-23 02:51:39,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 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) [2022-11-23 02:51:39,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:51:39,932 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 02:51:39,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:51:39,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 02:51:39,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:51:39,944 INFO L85 PathProgramCache]: Analyzing trace with hash 101669829, now seen corresponding path program 1 times [2022-11-23 02:51:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:51:39,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701563898] [2022-11-23 02:51:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:51:39,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:51:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:51:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:51:40,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:51:40,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701563898] [2022-11-23 02:51:40,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701563898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:51:40,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:51:40,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:51:40,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629921981] [2022-11-23 02:51:40,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:51:40,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:51:40,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:51:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:51:40,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:51:40,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 149 [2022-11-23 02:51:40,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-11-23 02:51:40,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:51:40,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 149 [2022-11-23 02:51:40,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:51:40,266 INFO L130 PetriNetUnfolder]: 6/19 cut-off events. [2022-11-23 02:51:40,266 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:51:40,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 19 events. 6/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 4 based on Foata normal form. 3/22 useless extension candidates. Maximal degree in co-relation 40. Up to 15 conditions per place. [2022-11-23 02:51:40,267 INFO L137 encePairwiseOnDemand]: 147/149 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2022-11-23 02:51:40,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 9 transitions, 38 flow [2022-11-23 02:51:40,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:51:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:51:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2022-11-23 02:51:40,273 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5055928411633109 [2022-11-23 02:51:40,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2022-11-23 02:51:40,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2022-11-23 02:51:40,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:51:40,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2022-11-23 02:51:40,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2022-11-23 02:51:40,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2022-11-23 02:51:40,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2022-11-23 02:51:40,282 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 18 flow. Second operand 3 states and 226 transitions. [2022-11-23 02:51:40,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 9 transitions, 38 flow [2022-11-23 02:51:40,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 9 transitions, 38 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:51:40,283 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2022-11-23 02:51:40,283 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=13, PETRI_TRANSITIONS=0} [2022-11-23 02:51:40,284 INFO L288 CegarLoopForPetriNet]: 13 programPoint places, 0 predicate places. [2022-11-23 02:51:40,284 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 0 transitions, 0 flow [2022-11-23 02:51:40,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-11-23 02:51:40,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-23 02:51:40,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-23 02:51:40,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-11-23 02:51:40,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-23 02:51:40,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:51:40,289 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 02:51:40,300 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 02:51:40,301 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:51:40,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:51:40 BasicIcfg [2022-11-23 02:51:40,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:51:40,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:51:40,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:51:40,311 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:51:40,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:35" (3/4) ... [2022-11-23 02:51:40,314 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:51:40,320 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 02:51:40,324 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 02:51:40,324 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 02:51:40,325 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 02:51:40,325 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:51:40,357 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:51:40,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:51:40,358 INFO L158 Benchmark]: Toolchain (without parser) took 6263.28ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 90.5MB in the beginning and 123.9MB in the end (delta: -33.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:51:40,358 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:51:40,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.05ms. Allocated memory is still 134.2MB. Free memory was 90.0MB in the beginning and 71.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 02:51:40,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.21ms. Allocated memory is still 134.2MB. Free memory was 71.1MB in the beginning and 69.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:51:40,359 INFO L158 Benchmark]: Boogie Preprocessor took 23.33ms. Allocated memory is still 134.2MB. Free memory was 69.0MB in the beginning and 67.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:51:40,359 INFO L158 Benchmark]: RCFGBuilder took 416.10ms. Allocated memory is still 134.2MB. Free memory was 67.5MB in the beginning and 54.1MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 02:51:40,360 INFO L158 Benchmark]: TraceAbstraction took 5200.19ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 53.5MB in the beginning and 127.0MB in the end (delta: -73.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:51:40,360 INFO L158 Benchmark]: Witness Printer took 46.09ms. Allocated memory is still 163.6MB. Free memory was 127.0MB in the beginning and 123.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:51:40,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.05ms. Allocated memory is still 134.2MB. Free memory was 90.0MB in the beginning and 71.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.21ms. Allocated memory is still 134.2MB. Free memory was 71.1MB in the beginning and 69.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.33ms. Allocated memory is still 134.2MB. Free memory was 69.0MB in the beginning and 67.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.10ms. Allocated memory is still 134.2MB. Free memory was 67.5MB in the beginning and 54.1MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5200.19ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 53.5MB in the beginning and 127.0MB in the end (delta: -73.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.09ms. Allocated memory is still 163.6MB. Free memory was 127.0MB in the beginning and 123.9MB in the end (delta: 3.1MB). 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: 4.2s, 66 PlacesBefore, 13 PlacesAfterwards, 63 TransitionsBefore, 9 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 8 FixpointIterations, 47 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 308 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 238, independent: 174, independent conditional: 0, independent unconditional: 174, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 126, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 126, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 107, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 238, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 126, unknown conditional: 0, unknown unconditional: 126] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 105 locations, 4 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: 5.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 02:51:40,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1debef7-2492-488a-9bdf-ace1a9f8e31c/bin/uautomizer-QkZJyEgLgS/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