./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/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_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/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_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8 --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 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 13:46:32,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:46:32,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:46:32,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:46:32,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:46:32,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:46:32,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:46:32,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:46:32,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:46:32,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:46:32,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:46:32,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:46:32,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:46:32,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:46:32,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:46:32,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:46:32,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:46:32,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:46:32,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:46:32,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:46:32,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:46:32,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:46:32,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:46:32,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:46:32,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:46:32,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:46:32,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:46:32,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:46:32,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:46:32,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:46:32,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:46:32,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:46:32,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:46:32,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:46:32,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:46:32,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:46:32,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:46:32,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:46:32,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:46:32,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:46:32,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:46:32,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:46:32,299 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:46:32,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:46:32,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:46:32,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:46:32,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:46:32,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:46:32,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:46:32,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:46:32,301 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:46:32,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:46:32,301 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:46:32,302 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:46:32,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:46:32,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:46:32,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:46:32,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:46:32,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:46:32,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:46:32,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:46:32,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:46:32,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:46:32,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:46:32,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:46:32,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:46:32,304 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:46:32,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:46:32,304 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:46:32,304 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_6625e49e-3764-4616-9abb-d0018c150a42/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 [2022-12-13 13:46:32,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:46:32,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:46:32,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:46:32,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:46:32,485 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:46:32,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 13:46:35,038 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:46:35,242 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:46:35,243 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 13:46:35,256 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/data/a29584517/f7470e968c924a1bad683b3a3db8b6fd/FLAGc5433ba03 [2022-12-13 13:46:35,591 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/data/a29584517/f7470e968c924a1bad683b3a3db8b6fd [2022-12-13 13:46:35,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:46:35,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:46:35,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:46:35,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:46:35,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:46:35,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6373a5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35, skipping insertion in model container [2022-12-13 13:46:35,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:46:35,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:46:35,755 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_6625e49e-3764-4616-9abb-d0018c150a42/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-12-13 13:46:35,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:46:35,868 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:46:35,877 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_6625e49e-3764-4616-9abb-d0018c150a42/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-12-13 13:46:35,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:46:35,913 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:46:35,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35 WrapperNode [2022-12-13 13:46:35,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:46:35,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:46:35,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:46:35,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:46:35,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,941 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-13 13:46:35,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:46:35,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:46:35,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:46:35,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:46:35,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:46:35,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:46:35,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:46:35,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:46:35,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (1/1) ... [2022-12-13 13:46:35,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:46:35,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:46:35,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:46:35,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:46:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:46:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:46:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 13:46:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:46:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:46:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 13:46:36,013 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 13:46:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:46:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:46:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:46:36,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:46:36,015 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 13:46:36,106 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:46:36,107 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:46:36,250 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:46:36,256 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:46:36,257 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:46:36,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:46:36 BoogieIcfgContainer [2022-12-13 13:46:36,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:46:36,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:46:36,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:46:36,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:46:36,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:46:35" (1/3) ... [2022-12-13 13:46:36,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6f6f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:46:36, skipping insertion in model container [2022-12-13 13:46:36,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:35" (2/3) ... [2022-12-13 13:46:36,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6f6f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:46:36, skipping insertion in model container [2022-12-13 13:46:36,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:46:36" (3/3) ... [2022-12-13 13:46:36,268 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-13 13:46:36,277 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:46:36,287 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:46:36,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:46:36,288 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:46:36,331 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 13:46:36,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2022-12-13 13:46:36,399 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-13 13:46:36,399 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:46:36,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-12-13 13:46:36,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 150 flow [2022-12-13 13:46:36,405 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2022-12-13 13:46:36,408 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:46:36,417 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 56 transitions, 115 flow [2022-12-13 13:46:36,419 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 56 transitions, 115 flow [2022-12-13 13:46:36,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 115 flow [2022-12-13 13:46:36,435 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-12-13 13:46:36,435 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:46:36,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 13:46:36,436 INFO L119 LiptonReduction]: Number of co-enabled transitions 280 [2022-12-13 13:46:37,922 INFO L134 LiptonReduction]: Checked pairs total: 580 [2022-12-13 13:46:37,922 INFO L136 LiptonReduction]: Total number of compositions: 44 [2022-12-13 13:46:37,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:46:37,936 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;@2837889d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:46:37,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:46:37,939 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 13:46:37,939 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:46:37,939 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:46:37,939 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:46:37,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 13:46:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:37,943 INFO L85 PathProgramCache]: Analyzing trace with hash 7252311, now seen corresponding path program 1 times [2022-12-13 13:46:37,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:37,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86694423] [2022-12-13 13:46:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:37,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:38,157 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 13:46:38,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:38,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86694423] [2022-12-13 13:46:38,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86694423] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:38,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:38,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:46:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564891291] [2022-12-13 13:46:38,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:38,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:38,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:38,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:38,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:38,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 115 [2022-12-13 13:46:38,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 27 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 13:46:38,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:46:38,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 115 [2022-12-13 13:46:38,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:46:38,220 INFO L130 PetriNetUnfolder]: 7/31 cut-off events. [2022-12-13 13:46:38,220 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:46:38,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 31 events. 7/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 5 based on Foata normal form. 5/36 useless extension candidates. Maximal degree in co-relation 53. Up to 17 conditions per place. [2022-12-13 13:46:38,221 INFO L137 encePairwiseOnDemand]: 111/115 looper letters, 8 selfloop transitions, 3 changer transitions 0/13 dead transitions. [2022-12-13 13:46:38,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 13 transitions, 51 flow [2022-12-13 13:46:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:46:38,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:46:38,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2022-12-13 13:46:38,234 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.591304347826087 [2022-12-13 13:46:38,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 204 transitions. [2022-12-13 13:46:38,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 204 transitions. [2022-12-13 13:46:38,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:46:38,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 204 transitions. [2022-12-13 13:46:38,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 13:46:38,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 13:46:38,246 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 13:46:38,248 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 27 flow. Second operand 3 states and 204 transitions. [2022-12-13 13:46:38,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 13 transitions, 51 flow [2022-12-13 13:46:38,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 50 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:46:38,252 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 37 flow [2022-12-13 13:46:38,254 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2022-12-13 13:46:38,257 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2022-12-13 13:46:38,257 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 37 flow [2022-12-13 13:46:38,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 13:46:38,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:46:38,258 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:46:38,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:46:38,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 13:46:38,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:38,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1304586518, now seen corresponding path program 1 times [2022-12-13 13:46:38,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:38,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979811542] [2022-12-13 13:46:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:38,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:38,409 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 13:46:38,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:38,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979811542] [2022-12-13 13:46:38,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979811542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:38,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:38,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:46:38,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828910024] [2022-12-13 13:46:38,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:38,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:46:38,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:38,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:46:38,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:46:38,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 115 [2022-12-13 13:46:38,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 37 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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 13:46:38,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:46:38,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 115 [2022-12-13 13:46:38,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:46:38,489 INFO L130 PetriNetUnfolder]: 2/18 cut-off events. [2022-12-13 13:46:38,489 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:46:38,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 18 events. 2/18 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 5/23 useless extension candidates. Maximal degree in co-relation 34. Up to 10 conditions per place. [2022-12-13 13:46:38,489 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 3 selfloop transitions, 4 changer transitions 6/14 dead transitions. [2022-12-13 13:46:38,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 14 transitions, 65 flow [2022-12-13 13:46:38,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:46:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:46:38,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2022-12-13 13:46:38,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5369565217391304 [2022-12-13 13:46:38,492 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 247 transitions. [2022-12-13 13:46:38,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 247 transitions. [2022-12-13 13:46:38,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:46:38,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 247 transitions. [2022-12-13 13:46:38,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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 13:46:38,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 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 13:46:38,495 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 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 13:46:38,495 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 37 flow. Second operand 4 states and 247 transitions. [2022-12-13 13:46:38,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 14 transitions, 65 flow [2022-12-13 13:46:38,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 14 transitions, 59 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:46:38,496 INFO L231 Difference]: Finished difference. Result has 19 places, 8 transitions, 30 flow [2022-12-13 13:46:38,496 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=19, PETRI_TRANSITIONS=8} [2022-12-13 13:46:38,496 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places. [2022-12-13 13:46:38,496 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 8 transitions, 30 flow [2022-12-13 13:46:38,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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 13:46:38,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:46:38,497 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:46:38,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:46:38,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 13:46:38,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1086286697, now seen corresponding path program 1 times [2022-12-13 13:46:38,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:38,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820134358] [2022-12-13 13:46:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:38,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:46:38,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:46:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:46:38,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:46:38,532 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:46:38,533 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 13:46:38,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 13:46:38,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:46:38,535 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 13:46:38,539 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:46:38,539 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:46:38,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:46:38 BasicIcfg [2022-12-13 13:46:38,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:46:38,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:46:38,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:46:38,556 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:46:38,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:46:36" (3/4) ... [2022-12-13 13:46:38,558 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 13:46:38,582 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:46:38,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:46:38,583 INFO L158 Benchmark]: Toolchain (without parser) took 2988.04ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 74.9MB in the beginning and 115.6MB in the end (delta: -40.7MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-12-13 13:46:38,583 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:46:38,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.74ms. Allocated memory is still 107.0MB. Free memory was 74.9MB in the beginning and 56.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:46:38,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.69ms. Allocated memory is still 107.0MB. Free memory was 56.0MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:46:38,584 INFO L158 Benchmark]: Boogie Preprocessor took 14.75ms. Allocated memory is still 107.0MB. Free memory was 53.8MB in the beginning and 52.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:46:38,584 INFO L158 Benchmark]: RCFGBuilder took 302.33ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 52.7MB in the beginning and 117.6MB in the end (delta: -64.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-12-13 13:46:38,585 INFO L158 Benchmark]: TraceAbstraction took 2294.24ms. Allocated memory is still 148.9MB. Free memory was 117.6MB in the beginning and 117.7MB in the end (delta: -92.1kB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2022-12-13 13:46:38,585 INFO L158 Benchmark]: Witness Printer took 26.14ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 115.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:46:38,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.74ms. Allocated memory is still 107.0MB. Free memory was 74.9MB in the beginning and 56.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.69ms. Allocated memory is still 107.0MB. Free memory was 56.0MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.75ms. Allocated memory is still 107.0MB. Free memory was 53.8MB in the beginning and 52.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.33ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 52.7MB in the beginning and 117.6MB in the end (delta: -64.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2294.24ms. Allocated memory is still 148.9MB. Free memory was 117.6MB in the beginning and 117.7MB in the end (delta: -92.1kB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. * Witness Printer took 26.14ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 115.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 60 PlacesBefore, 16 PlacesAfterwards, 56 TransitionsBefore, 12 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 580 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 384, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 170, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 384, independent: 137, independent conditional: 0, independent unconditional: 137, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 170, unknown conditional: 0, unknown unconditional: 170] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 2 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: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 4 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=1, InterpolantAutomatonStates: 7, 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-13 13:46:38,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6625e49e-3764-4616-9abb-d0018c150a42/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE